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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => Project Custom Motobricks => Topic started by: furnimoto on October 22, 2016, 04:35:55 AM
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Hello Brickers,
I thought I would start a thread on my project bike. I fully expect it to end up in the "Ugliest custom K you've ever seen?" thread at some point as it is not going to conform to traditional restoration or cafe racer standards. None the less, I am committed to and excited by this project. I am going to learn a lot and do many things that I have never done before. Preemptively, I have decided to answer a few of your questions:
The reason I wanted to ruin a perfectly good K1100 is because I am an idiot.
Yes, I realize that a K1100 is a terrible choice for a scrambler type project. The reason I chose this bike for this project is because I love the fact that it is shaft drive, has a single sided swingarm, and it has a bulletproof brick of an engine...and I'm an idiot.
...and finally(if you choose to watch the following youtube videos) since I know that many of the forum members here are of a more distinguished age than me. I do, in fact, have the worst taste in music.
So without further adieu, I present Project apoKalypse:
I picked up the k1100rs in what seems to be pretty good mechanical condition, but it had been crashed/dropped on the right side and by the look of things a bit neglected. Sorry in advance to any purists who hate to see these modified, but this one is going to get pretty crazy. My plan is to make it into a wasteland scrambler/desert sled. I don't want the finished project to be cartoony or look like it was decorated to be post apocalyptic, I'm hoping that it ends up looking like a purpose built machine that would be a capable tool in a post apocalyptic wasteland. Since my forte is machining parts rather than metal fabrication, it will probably end up being more polished than mad max. I'm planning on documenting this project on youtube, here is the first/intro video:
https://www.youtube.com/watch?v=zWlPGf9Z05I
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https://www.youtube.com/watch?v=tzg-jkd95ew
My first actual project on this bike after removing the plastics was footpegs and mounting brackets. I had some difficulties measuring hole locations initially. I decided to make a tool so I could precisely measure the hole locations.
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https://www.youtube.com/watch?v=LakWKN7HBDY
The footpegs have proven to be a lot of work so far, but I think they turned out pretty good. They are a bit aggressive though, with the m3 setscrew cleats. I may have to change them if they seem like they will chew through my boot soles too quickly.
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I have procured a 2015 r1200gs LED headlight for project apokalypse. Here it is mocked up with zipties. Personally, I think it looks pretty amazing, but I still have to work out how exactly I want to mount it. I'll update when I figure it out
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This is pretty incredible man, can't wait to see where to take this. Those footpegs look awesome man!
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Not to hit on you in particular, but just a question I've had for some time whenever I see someone build a scrambler/desert bike from a K bike.
Do you intend to operate off road at the full speed capability of the engine, or just paddle along at 10-15 mph in 1st and 2nd gear? Are you building a serious machine, or will it be a full size model of something that might be seen in a video game?
I ask this because from what I can see the K bikes, especially the RS models are road bikes seriously lacking in suspension travel and geometry for off road work, especially in the rear end where they barely equal the standards of mid 70's street/trail bikes. At the front I suspect there are issues with rake and trail combined with an awful lot of weight that will result in the front wheel plowing with huge understeer in the dirt.
Seems like a bit of a waste to have all that work in a machine that would probably do some real damage to itself and you the first time you take it off road and open it even half way up.
Just wondering...
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Your hole centre calliper is awsome!Although a little "over the top" ....You're speedo mounting would indeed be apocalyptic if you attempted to check your velocity.That's totally over the top! :hehehe
Not to hit on you in particular, but just a question I've had for some time whenever I see someone build a scrambler/desert bike from a K bike.
Do you intend to operate off road at the full speed capability of the engine, or just paddle along at 10-15 mph in 1st and 2nd gear? Are you building a serious machine, or will it be a full size model of something that might be seen in a video game?
I ask this because from what I can see the K bikes, especially the RS models are road bikes seriously lacking in suspension travel and geometry for off road work, especially in the rear end where they barely equal the standards of mid 70's street/trail bikes. At the front I suspect there are issues with rake and trail combined with an awful lot of weight that will result in the front wheel plowing with huge understeer in the dirt.
Seems like a bit of a waste to have all that work in a machine that would probably do some real damage to itself and you the first time you take it off road and open it even half way up.
Just wondering...
Gryph,it's project Apokalypse!
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Ok, I think I see, it's really a mechanical sculpture, an artistic expression, and not really intended to be used to cover a lot of unpaved open land as quickly as possible. Makes sense, kinda like the 21st century version of the tail fins on a 1959 Cadillac.
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This is pretty incredible man, can't wait to see where to take this. Those footpegs look awesome man!
Thanks, the foot pegs were an incredible amount of work. I designed and modeled multiple versions, made 4 different fixtures for them, and they have, by far, the most 3d tooolpaths in a single part that I have ever done.
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Gryph,it's project Apokalypse!
YAAAAS!!!
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Ok, I think I see, it's really a mechanical sculpture, an artistic expression, and not really intended to be used to cover a lot of unpaved open land as quickly as possible. Makes sense, kinda like the 21st century version of the tail fins on a 1959 Cadillac.
Yes, the goal on this project is not to make the most capable off road machine. I really just wanted to machine some cool motorcycle parts, learn how to weld, and make something fun along the way. Though I do plan on putting some dual sport tires on it, my off road time will likely be limited at best.
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Love the concept. I'm planning to build something similar after I've finished the two projects I have going on now.
Awesome foot pegs!
Subscribed!
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Love the concept. I'm planning to build something similar after I've finished the two projects I have going on now.
Awesome foot pegs!
Subscribed!
Thanks, man. Start a thread when you start your scrambler project. I am about to machine some handlebar risers tomorrow. I'll update with some pics when they are done.
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So I have been looking at headlights and making a parts list as I am going to be reworking my already reworked K100 and turning it more into a street fighter; I really like that R1200GS headlight you got and it would go GREAT with my concept idea. mine is going to be a little more street than post apocalypse but mind sharing on where you got that snazzy headlamp and how much? I am also looking into a custom air induction, clamp on bars, and more. :popcorm
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So I have been looking at headlights and making a parts list as I am going to be reworking my already reworked K100 and turning it more into a street fighter; I really like that R1200GS headlight you got and it would go GREAT with my concept idea. mine is going to be a little more street than post apocalypse but mind sharing on where you got that snazzy headlamp and how much? I am also looking into a custom air induction, clamp on bars, and more. :popcorm
Well to be honest, the headlight was almost as much as the whole bike. It was hard to justify, but I just kept envisioning it on the project, and ultimately just decided to do it. The new oem parts are crazy, something like $1500 for the headlight, and another $500 or so for the control unit. The control unit is necessary to control the fan inside the headlight assembly, and it is definitely not a plug and play solution. I ended up getting some used components on ebay from a guy who also reprogrammed the control unit for me for $1000. I know it's stupid expensive, but I really liked the idea of frankensteining new and old bmw parts together.
Before I decided to go with the LED r1200gs headlight, I was looking at f800gs headlights. They are also pretty cool, and I think you can get one on ebay for around $200-500. Another one worth looking into, depending on your budget, is the JW Speaker adaptive headlight: https://www.jwspeaker.com/products/adaptive-led-headlights-model-8790-adaptive/
It's got some really cool technology, but for me I was just really into the asymmetry of the bmw headlights.
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Another one worth looking into, depending on your budget, is the JW Speaker adaptive headlight:
That is compellingly weird. The trouble is "the dark void of light going into a corner as the bike leans" that the JW Speaker eliminates is part of the thrill of night riding. :giggles Moonlight helps though, sometimes.
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So the shop that I run in SF is moving to Mountain View in December. I will not be able to store project apoKalypse at the new shop, so I have been hustling to try and get it to a road worthy before the move. I will not be able to machine new triple clamps before then so I decided to make these bar risers in the meantime.
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I got some cool enduro bars, and a master cylinder and clutch perch from a s1000rr. Here is how they are looking with the new risers
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That is compellingly weird. The trouble is "the dark void of light going into a corner as the bike leans" that the JW Speaker eliminates is part of the thrill of night riding. :giggles Moonlight helps though, sometimes.
It's pretty crazy, check out some video of the headlight:
https://youtu.be/J8uYv_dnCxo?t=13s
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It's pretty crazy, check out some video of the headlight:
Thanks for the link! It's pretty impressive. Breathtaking price, too.
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yeah, I have looked at those JW speaker speakers. I have been on the fence on getting one because I really like the asymmetry of the GS headlights and I had thought about the K1200R headlamp too but I do really like the JW lamp as a fallback especially if its easy to wire in. My inspiration for my newer build, though it won't be near as intensive comes from impuls's K101 rebuilds seen here http://hiconsumption.com/2016/03/bmw-k100-dual-motorcycles-by-impuls/ . I have looked all over for this headlight as there are articles that post some of their parts lists but I can't find it. I really like the LED in theirs and the GS lamp but the 1K pricetag on that GS lamp is more than I am willing haha. good looking risers by the way, I am going for clip ons and lower bars :2thumbup:
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What are you using for your clutch and brake lever assembly?
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yeah, I have looked at those JW speaker speakers. I have been on the fence on getting one because I really like the asymmetry of the GS headlights and I had thought about the K1200R headlamp too but I do really like the JW lamp as a fallback especially if its easy to wire in. My inspiration for my newer build, though it won't be near as intensive comes from impuls's K101 rebuilds seen here http://hiconsumption.com/2016/03/bmw-k100-dual-motorcycles-by-impuls/ . I have looked all over for this headlight as there are articles that post some of their parts lists but I can't find it. I really like the LED in theirs and the GS lamp but the 1K pricetag on that GS lamp is more than I am willing haha. good looking risers by the way, I am going for clip ons and lower bars :2thumbup:
Yeah those are sweet, I've definitely spent some time drooling over those. I don't know that it is the same one, but here is a headlight that is pretty close:
http://www.motorcyclepartsmegastore.com/replacement-headlight-black-v-rod-02-l-custom-app-rpls-hd-68880-01.html
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What are you using for your clutch and brake lever assembly?
They are from a bmw s1000rr
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yeah, I have looked at those JW speaker speakers. I have been on the fence on getting one because I really like the asymmetry of the GS headlights and I had thought about the K1200R headlamp too but I do really like the JW lamp as a fallback especially if its easy to wire in. My inspiration for my newer build, though it won't be near as intensive comes from impuls's K101 rebuilds seen here http://hiconsumption.com/2016/03/bmw-k100-dual-motorcycles-by-impuls/ . I have looked all over for this headlight as there are articles that post some of their parts lists but I can't find it. I really like the LED in theirs and the GS lamp but the 1K pricetag on that GS lamp is more than I am willing haha. good looking risers by the way, I am going for clip ons and lower bars :2thumbup:
Today is your lucky day. The headlight used on the Impul's builds can be purchased from this site. The problem is that they don't ship to the U.S. I purchase my headlight from this site, but had it shipped to a co-worker's daughter living in Germany. She then shipped it to me. The overall cost will be a hella less than the $1k for the GS lamp. Perhaps there's some folks on this forum living in Germany that can help you out.
http://www.brands4bikes.de/beleuchtung/scheinwerfer/hauptscheinwerfer/shin-yo-universal-scheinwerfer-oval-mit-standlicht-schwarz-12v-h9-h11-e-gepr.html
This is what I'm using on my K75 build. I have some pics posted on this forum.
http://www.brands4bikes.de/beleuchtung/scheinwerfer/hauptscheinwerfer/shin-yo-ellipsoid-scheinwerfer-cyclops.html
http://www.motobrick.com/index.php/topic,8956.0.html
Alternately, have you looked into the LSL Urban headlight? Bikernut just posted his build with this headlight.
http://www.motobrick.com/index.php/topic,9169.0.html
http://www.speedmotoco.com/product-p/048-1-0004.htm
Good luck,
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So, I finally got around to doing a progress update video:
Project ApoKalypse 3: New Handlebars and Custom Bar risers (https://www.youtube.com/watch?v=SxhIvyXM9Ss)
I'm almost done with the foot controls, all I have to do is machine a new brake pedal, a return spring and adjustable stop, and a mounting plate for the master cylinder. I'm pretty happy with how they turned out.
I have all of the components for my handlebars, and soon I'll be ready to tackle some of the rewiring. I am relocating the battery as well as the relay box, and using a motogadget m-unit v2. It's going to be a pretty cool setup.
The main obstacle that I am up against currently is the mounting of the headlight. So far I haven't come up with any designs that I am happy with. I will probably try to work iteratively, getting something in place even if it isn't the final design will be pretty useful to working through the problem I think.
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Check out this ridiculous youtube channel trailer I made for Project ApoKalypse, it's pretty rad
Channel Trailer for Project ApoKalypse (https://www.youtube.com/watch?v=VLxDWD2TZdM)
...and I'm going to give away a pair of the bar risers I made. It's entirely conceivable that I will get no entries from youtube, so I thought someone here might be interested. Click the title of the video to go to the youtube page and leave your links there
Bar Riser Giveaway! (https://www.youtube.com/watch?v=-bcjzWmFrUo)
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Check out this ridiculous youtube channel trailer I made for Project ApoKalypse, it's pretty rad
By rad, you mean radioactive?
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Laitch - you are so not down with the kids :oldguy:
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Laitch - you are so not down with the kids :oldguy:
Free radicals?
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Yo bro. :2thumbup:
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...and I'm going to give away a pair of the bar risers I made. It's entirely conceivable that I will get no entries from youtube, so I thought someone here might be interested. Click the title of the video to go to the youtube page and leave your links
I have a build on here. Can I link it as my entry? Those bar risers are SWEET!
Sent from my iPhone using Tapatalk
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I have a build on here. Can I link it as my entry? Those bar risers are SWEET!
Sent from my iPhone using Tapatalk
Of course! If you post a link, you will be the current winner since you would be the 1st entry
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Of course! If you post a link, you will be the current winner since you would be the 1st entry
Excellent! Just posted but not sure if the link works. I'm Dom Yan and mines the Rusty Brick project
Sent from my iPhone using Tapatalk
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Excellent! Just posted but not sure if the link works. I'm Dom Yan and mines the Rusty Brick project
Sent from my iPhone using Tapatalk
It worked, so far you are the only entry, and the current winner
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What are your plans for the original bars Furni?
If they're wider than the ones on my K75C I'd sign up for that raffle!
They bar risers certainly look swell, even if you still need to mount it together with the originals.
Don in Nipomo
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What are your plans for the original bars Furni?
If they're wider than the ones on my K75C I'd sign up for that raffle!
They bar risers certainly look swell, even if you still need to mount it together with the originals.
Don in Nipomo
Don, They are 27 inches wide. I don't know if that is wider than your k75 bars, but if you're interested I would happily sell them to you for cheap. Make me an offer and I will most likely accept it
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oops, sorry for the upside down pic
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Heres a right side up but backwards of my bars.
They might even be wider than yours allowing for the antivibration dongles inserted in the ends.
I'm looking for the bars that measure 27" before we start adding grips and bumper knobs.
What I want is to spread out my grip a bit. I'm use to wide bars.
Don in Nipomo
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Heres a right side up but backwards of my bars.
They might even be wider than yours allowing for the antivibration dongles inserted in the ends.
I'm looking for the bars that measure 27" before we start adding grips and bumper knobs.
What I want is to spread out my grip a bit. I'm use to wide bars.
Sounds like my bars are not going to be the right solution for you. The new handlebars that I installed are much wider than the stock ones were, maybe an aftermarket solution would work for you?
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I believe you are correct. What I'd like to try is a set of K1 bars. Just an inch or so on each side with a bit more pullback.
Metric motocross bars might work, I've got a set of thick walled aluminum Honda CR 250s on my Zundapp 601.
Fairly flat and low rise for eventual sidecar work. They measure 32" tip to tip on the surgical rubber Maguras.
Be sure to post up your castoff, salvage parts on the board.
Seems like half the folks here like to take their Ks apart while the other half are trying to put them back together!
Don in Nipomo
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Seems like half the folks here like to take their Ks apart while the other half are trying to put them back together!
Don in Nipomo
Good summary!
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Here is a video of some of the machining I did on the footpegs set to my favorite Nancy Sinatra cover of all time
Project ApoKalypse Part 3.5: Machining Custom Footpegs (https://www.youtube.com/watch?v=SnnB5pMLgZA)
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. . . my favorite Nancy Sinatra cover of all time
Finally—a version of that song that isn't painful to hear! :clap:
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Finally—a version of that song that isn't painful to hear! :clap:
Haha, I should have mentioned that the all time favorite list of Nancy Sinatra cover tunes begins and ends with the Megadeth version of "these boots"
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Here are the results of the bar riser giveaway I did on youtube, Congratulations MaraudeRS!
Project ApoKalypse Giveaway Winner is... (https://www.youtube.com/watch?v=AtELpP3g0K0)
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Great machining and soundtrack!
BTW, what speedometer is that?
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Woohoo! Thank you very much! What do you need from me besides my address? I can PM you
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Woohoo! Thank you very much! What do you need from me besides my address? I can PM you
Sent from my iPhone using Tapatalk
Your welcome! I'll cover the shipping all I need from you is your shipping address. I hope you enjoy them, I'm going to ship them out with some black oxide socket head cap screws(all I had at the shop), but I recommend that you get some hardware that won't rust.[size=78%] [/size]
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Great machining and soundtrack!
BTW, what speedometer is that?
Thanks. You mean the speedo in the giveaway results video? It is the stock speedo on my 2015 ducati diavel. I did order this sweet motogadget tach/speedometer from revival cycles for project apoKalypse though, but they seem to be having some supply chain issues and it hasn't arrived yet.
https://revivalcycles.com/collections/for-your-ride-motogadget-gauges/products/motogadget-chronoclassic-tachometer
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Ok so got too ask. I'm in the process off building the same style of bike you are. What would it cost me to get a set of foot pegs and bar risers. You have some skills by the way
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Hey Learch, sorry for the delayed response. Thanks for the compliment. Would they be for the 92 k75? The bar risers and footpegs themselves would work, but I'm not sure about the footpeg mounting brackets. I don't know if the bolt holes I used are the same for your bike. I might have an extra set of bar risers. They are pretty sweet, but it's looking like I'm going to machine my self a new set of triple clamps, which will mean a different bar mounting set up. So mine might be available. I also machined a few extra sets of footpegs, but I would have to machine the brackets, and again I'm not sure if the bolt pattern would work out on a 92 k75. Do any proficient motobrickers know about compatibility between 92 k75's and 96 k1100rs's peg plates?
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Just watched your <Who wins the bar risers> video... Very cool of you. :2thumbup:
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Just watched your <Who wins the bar risers> video... Very cool of you. :2thumbup:
Thanks man!
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Hey Guys! I have been on a brief hiatus from Project ApoKalypse, but now I am back on it. Here is the latest video update:
Project ApoKalypse Part 4: Frame Mods, Battery Box, and 3d Scanning (https://www.youtube.com/watch?v=z52dyPmhdSs)
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Hi furnimoto..
Great build so far!
It looks like you made some extensive 3D CAD modelling.. would you be interested in sharing these files?
Rasmus
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Great build so far!
It looks like you made some extensive 3D CAD modelling.. would you be interested in sharing these files?
Thanks Rasmus! I have done a whole bunch of modeling, and I'm happy to share some of my 3d models with fellow motobrickers. Some of the parts I just used as a visual aid for design and are not super accurate, like the section of frame that I modeled. On that one I just took measurements with a tape measure and eyeballed some of the bend radii and angles.
On other parts, like the motronic unit, r1200gs led headlight, and lower triple clamp, I used a leica laser scanner to generate a point cloud and then used some fancy $30k/seat software(geomagic design x) to make solid models, so they are pretty accurate. Here's a list of models that I have made, and brief description of each:
*Disclaimer*
My project is a 1996 k1100rs, I don't know how much stuff will carry over to other years and models. Most of the critical features(mounting holes and stuff) are accurate, but some aesthetic features may not be. These models have worked for my purposes, and I hope they work for your purposes, but please verify any critical dimensions on your particular project.
*Disclaimer*
Lower triple clamp-Laser scanned but I didn't finish modeling the steering stops because I am planning on doing adjustable eccentric stops on my custom clamps. The steering stem is an interference fit, and I haven't pressed out the steering stem yet to measure the actual bore diameter.
12 cell antigravity battery-It's pretty good, but the cases aren't manufactured to super tight tolerances so I would recommend verifying your individual battery measurements if your trying to fit it in a super tight space.
Motogadget M-unit v2-Mounting features and overall dimensions should be good, but I just eyeballed fillets and radii and such.
Motronic unit-Laser scanned, but the unit is just in a sheet metal chassis(not precisely manufactured), and I didn't bother to model the actual electrical connector.
R1200GS LED headlight-This thing is crazy! Everything is drafted, there aren't really any flat planes, and none of the features are symmetrical. I laser scanned it, but there are a few lofted and swept cut features that I didn't bother to model(strictly aesthetic). The vibration isolators are not part of the stock assembly, and I didn't bother modeling the lofted feature that they mount to. I could keep going on with more particulars, but won't unless someone really wants to know.
50 cal ammo box-I downloaded this assembly from grabcad, it seems pretty good though.
TC Bros enduro bars-These are modeled based on the dimensions on their website, though I took some measurements myself too.
Welded seat assembly/tragkorb rack-I designed this specifically for my project and tragkorb application. The vibration isolators are available from Mcmaster Carr, but I designed the rest of the mounting hardware as well as the cable gland. Each case should have a weight capacity of 60lbs. Functionally the tragkorbs are better lower, but I prefer them higher aesthetically so I built in some vertical adjustment into the mounting plates so that I can fine tune the height after I get the seat assembly welded up.
Bar risers-I designed these so that I could position the bars for better ergonomics while standing on the footpegs(for all of that theoretical post apocalyptic adventure riding I'm going to be doing), but they actually make the riding position very comfortable combined with the stock foot position(for all of that actual street riding that I will be doing). You will have to get longer cables though(LT cables might be long enough), and the rubber mounted bar clamps in the stock triple clamp feel too squishy with the additional leverage, so if using the stock triple clamps I would recommend removing those rubber bushings and coming up with a hard mounted modification.
Foot controls-I have literally spent hundreds of hours designing different versions, programing, and prototyping these. I made 4 individual work holding fixtures to machine them so far, and will have to design some more workholding for the brake pedal as well, which I have not machined yet. I am considering possibly doing a run of these for sale. BSK makes some really awesome rearsets for K-bikes, which are great for cafe racers, but there isn't really anything available for scrambler applications. The only issue is that that they would be expensive to make, both in material cost and machining time, and so even more expensive to buy. I don't know if it is a viable option yet, but in the meantime I would rather not share these particular models. I am happy to share information like the mounting hole locations and dimensions that I used though, so people can design their own if they feel so inclined.
I don't know they best way to share these files. I will probably save them as step files, drop them in a folder on google drive, and post a link to that folder in this thread. I'll plan on doing that sometime this weekend.
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Thanks Rasmus! I have done a whole bunch of modeling, and I'm happy to share some of my 3d models with fellow motobrickers. Some of the parts I just used as a visual aid for design and are not super accurate, like the section of frame that I modeled. On that one I just took measurements with a tape measure and eyeballed some of the bend radii and angles.
On other parts, like the motronic unit, r1200gs led headlight, and lower triple clamp, I used a leica laser scanner to generate a point cloud and then used some fancy $30k/seat software(geologic design x) to make solid models, so they are pretty accurate. Here's a list of models that I have made, and brief description of each:
*Disclaimer*
My project is a 1996 k1100rs, I don't know how much stuff will carry over to other years and models. Most of the critical features(mounting holes and stuff) are accurate, but some aesthetic features may not be. These models have worked for my purposes, and I hope they work for your purposes, but please verify any critical dimensions on your particular project.
*Disclaimer*
Lower triple clamp-Laser scanned but I didn't finish modeling the steering stops because I am planning on doing adjustable eccentric stops on my custom clamps. The steering stem is an interference fit, and I haven't pressed out the steering stem yet to measure the actual bore diameter.
12 cell antigravity battery-It's pretty good, but the cases aren't manufactured to super tight tolerances so I would recommend verifying your individual battery measurements if your trying to fit it in a super tight space.
Motogadget M-unit v2-Mounting features and overall dimensions should be good, but I just eyeballed fillets and radii and such.
Motronic unit-Laser scanned, but the unit is just in a sheet metal chassis(not precisely manufactured), and I didn't bother to model the actual electrical connector.
R1200GS LED headlight-This thing is crazy! Everything is drafted, there aren't really any flat planes, and none of the features are symmetrical. I laser scanned it, but there are a few lofted and swept cut features that I didn't bother to model(strictly aesthetic). The vibration isolators are not part of the stock assembly, and I didn't bother modeling the lofted feature that they mount to. I could keep going on with more particulars, but won't unless someone really wants to know.
50 cal ammo box-I downloaded this assembly from grabcad, it seems pretty good though.
TC Bros enduro bars-These are modeled based on the dimensions on their website, though I took some measurements myself too.
Welded seat assembly/tragkorb rack-I designed this specifically for my project and tragkorb application. The vibration isolators are available from Mcmaster Carr, but I designed the rest of the mounting hardware as well as the cable gland. Each case should have a weight capacity of 60lbs. Functionally the tragkorbs are better lower, but I prefer them higher aesthetically so I built in some vertical adjustment into the mounting plates so that I can fine tune the height after I get the seat assembly welded up.
Bar risers-I designed these so that I could position the bars for better ergonomics while standing on the footpegs(for all of that theoretical post apocalyptic adventure riding I'm going to be doing), but they actually make the riding position very comfortable combined with the stock foot position(for all of that actual street riding that I will be doing). You will have to get longer cables though(LT cables might be long enough), and the rubber mounted bar clamps in the stock triple clamp feel too squishy with the additional leverage, so if using the stock triple clamps I would recommend removing those rubber bushings and coming up with a hard mounted modification.
Foot controls-I have literally spent hundreds of hours designing different versions, programing, and prototyping these. I made 4 individual work holding fixtures to machine them so far, and will have to design some more workholding for the brake pedal as well, which I have not machined yet. I am considering possibly doing a run of these for sale. BSK makes some really awesome rearsets for K-bikes, which are great for cafe racers, but there isn't really anything available for scrambler applications. The only issue is that that they would be expensive to make, both in material cost and machining time, and so even more expensive to buy. I don't know if it is a viable option yet, but in the meantime I would rather not share these particular models. I am happy to share information like the mounting hole locations and dimensions that I used though, so people can design their own if they feel so inclined.
I don't know they best way to share these files. I will probably save them as step files, drop them in a folder on google drive, and post a link to that folder in this thread. I'll plan on doing that sometime this weekend.
Hi
Thank you for the very elaborate reply :)
I was actually planning on modelling a "complete" K100 model in 3D CAD, both for the benefit of the community and builders in here, and also for my self to use in the making of my own custom '83 K100. I have been trawling the internet to find 3D models of the K bike, and so far I have only come up with a poor STL scan, see picture below. I was planning on using that as a reference to start out with, and then slowly build it up, part by part. Realistically i se this more as a collaborative task, since the brick (and motorcycles in general) consists of a lot of parts, and hence I will never be able to produce it all in my lifetime :)... In order not to hijack your thread, I should probably create a separate one for this purpose..
Your models should be a huge help to get this thing started! I see and understand your disclaimer :) I will use the dimensions with caution.. Mind I ask, what software are you using? I am modeling in SolidWorks 2017, kindly (unknowingly) provided by my company... My boss will think I am working late :clap:
I also completely respect your business plan for the footrests, go for it! :2thumbup:
I am looking forward to receive the link for your files..
Rasmus
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I have been trawling the internet to find 3D models of the K bike, and so far I have only come up with a poor STL scan
I found that one too! Unfortunately, it wasn't really very helpful for my purposes. Larry Romestant has some K-bike CAD(http://specialks.net/models/cad/), I considered contacting him and asking him if he would be willing to share his models, but never ended up reaching out to him. I tried to scan my whole bike with an Artec scanner so I could share a model with the community here, but had all sorts of tracking issues. All of the laser tracking metrology equipment I used to scan the headlight, triple clamp, and motronic unit are located on the 2nd floor at work, so I wasn't able to do the whole bike unfortunately.
For modeling, I am using solidworks 2016, for CNC programing I am using mastercam x9, and for solid modeling from point cloud I used geomagic design x for the headlight and triple clamp, and I tried a trial version of the geomagic plugin for solidworks to model the motronic unit(the standalone was much better than the plugin). There is a solidworks add-in for creating a mesh from a point cloud in the seat of solidworks that I have, yours probably has it too. I'll put those point cloud files in that folder too in case you want to play around with creating a solid model from them. Be forewarned though, it is a lot of work to make solid models from point clouds.
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I found that one too! Unfortunately, it wasn't really very helpful for my purposes. Larry Romestant has some K-bike CAD(http://specialks.net/models/cad/ (http://specialks.net/models/cad/)), I considered contacting him and asking him if he would be willing to share his models, but never ended up reaching out to him. I tried to scan my whole bike with an Artec scanner so I could share a model with the community here, but had all sorts of tracking issues. All of the laser tracking metrology equipment I used to scan the headlight, triple clamp, and motronic unit are located on the 2nd floor at work, so I wasn't able to do the whole bike unfortunately.
For modeling, I am using solidworks 2016, for CNC programing I am using mastercam x9, and for solid modeling from point cloud I used geomagic design x for the headlight and triple clamp, and I tried a trial version of the geomagic plugin for solidworks to model the motronic unit(the standalone was much better than the plugin). There is a solidworks add-in for creating a mesh from a point cloud in the seat of solidworks that I have, yours probably has it too. I'll put those point cloud files in that folder too in case you want to play around with creating a solid model from them. Be forewarned though, it is a lot of work to make solid models from point clouds.
Thanks for the info. I just send Larry an e-mail, asking him if he would be willing so share/sell his CAD files. Impressive stuff regarding the scanning equipment! I haven't tried to convert an actual STL file into actual surfaces. Solidworks has some features to do it, but it also takes a lot of work. I have also tried to play around in MeshLab, but nothing serious. My initial thought would be to draw everything from scratch, using the scans as reference.
Do you have a CAD model of the tank? Anyway, looking forward to see your files ;)
Also, please post some more pictures of your build :)
Rasmus
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Cool to see someone else has started to get some cad models of the bike being made. Im slowly making parts of my project but can't get my hands on a scanner so I'm taking the long route of drawing and building them myself.
Currently am making the air system as in the process of refining it so have almost completed fully functioning throttle bodies from a 1100 for my 100rs
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My initial thought would be to draw everything from scratch, using the scans as reference.
That's pretty much what the process is. I was hoping for something more automated, but in the end it was really just manually creating sketches from cross sections of the point cloud, and making features from those sketches.
I never modeled the tank, but I would be interested if you find a model of it. Let me know what Larry's response is.
I was not able to access the motorbrick site this weekend, I think it was down or something. The models are on my work computer, I'll wrangle them into a folder and post a link tomorrow.
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Currently am making the air system as in the process of refining it so have almost completed fully functioning throttle bodies from a 1100 for my 100rs
Do you have a thread going for your project? I haven't looked into the air system too much yet, but I would like to modify my air box/fabricate a new one if it is possible to do so while maintaining the functionality of the original one.
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I machined the mounts for my ammo can tragkorbs. I used a Datron high speed mill this time rather than my usual VMC. I shot some gopro footage and will post a video when I get a chance to sit down and edit another update. In the meantime, here are some pics of the mounts.
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Do you have a thread going for your project? I haven't looked into the air system too much yet, but I would like to modify my air box/fabricate a new one if it is possible to do so while maintaining the functionality of the original one.
not yet as am currently working on it when I have time behind closed curtains until I have enough done to do a grand reveal :bmwsmile So will probs start a thread up in a month or so as am saving up for fabrication costs.
http://imgur.com/a/iUAze (http://imgur.com/a/iUAze) (here are a few screenshots, I've put a URL so not to take over your thread)
what CAD program do you use as I could send over a copy of it to you so you can have a play. Quite a bit wouldn't be necessary to your bike as I'm trying to work on/hide the air flow mass sensor from the 100rs but can get rid of those for you.
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what CAD program do you use as I could send over a copy of it to you so you can have a play. Quite a bit wouldn't be necessary to your bike as I'm trying to work on/hide the air flow mass sensor from the 100rs but can get rid of those for you.
I am using solidworks 2016. Usually most shops around here ask for step files when I shop work out, I guess that file type plays well across software platforms.
Apparently the motronic bikes like mine don't have a MAF, I had assumed that it would've had one, but I guess not. I haven't researched the air system at all yet, but I'm not a huge fan of how the the stock air box looks. I understand that it works well though.
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Ok, I have started a google drive folder with solid models in it. I exported them as step so no one has to worry about compatibility or future version issues. Some how my lower triple clamp model got messed up so I'll have to spend a bit of time rebuilding it before it goes in the folder. Also, the .txt files are the point clouds in case anyone wants to mess around with those, when you import them, make sure that your units are set to meters.
https://drive.google.com/open?id=0B_8344myoqVLNDhiNjFXaG9PLTQ
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I have started a google drive folder with solid models in it.
Getting these step files into the motobrick reference area would be great. As parts for these bikes get more scarce, I can see the time when we will need to start fabricating our parts, whether or not we are doing a custom build or trying to keep our bikes stock.
A case in point are the turn signal lenses in the rear view mirror housing on the RS bricks.
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I am using solidworks 2016. Usually most shops around here ask for step files when I shop work out, I guess that file type plays well across software platforms.
Apparently the motronic bikes like mine don't have a MAF, I had assumed that it would've had one, but I guess not. I haven't researched the air system at all yet, but I'm not a huge fan of how the the stock air box looks. I understand that it works well though.
Ah nice I was on solidworks but recently made the swap to fusion 360 because of work and yep step files are the most transferable format. (edit: The files transfer without a hitch http://a360.co/2iosLJ8 - I put your bar riser together as a test)
I'll get onto finishing the final details of the throttle bodies (butterflies, springs, etc.) and I'll post it so that anyone can work with it.
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Getting these step files into the motobrick reference area would be great. As parts for these bikes get more scarce, I can see the time when we will need to start fabricating our parts, whether or not we are doing a custom build or trying to keep our bikes stock.
A case in point are the turn signal lenses in the rear view mirror housing on the RS bricks.
I agree having thread/area where people can share cad files would be a great resource.
Is this the part?
https://www.motorworks.co.uk/bmw/prodimages/lg/LIK53001.jpg (https://www.motorworks.co.uk/bmw/prodimages/lg/LIK53001.jpg)
(https://www.motorworks.co.uk/vlive/Img/Int/t.gif)
I'm always looking for things to do in my free time at work, so I give it some thought. You could possibly make a silicon mould of a pair of originals and then it would be possible to churn them out as there is always a need for them.
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Ok, I have started a google drive folder with solid models in it. I exported them as step so no one has to worry about compatibility or future version issues. Some how my lower triple clamp model got messed up so I'll have to spend a bit of time rebuilding it before it goes in the folder. Also, the .txt files are the point clouds in case anyone wants to mess around with those, when you import them, make sure that your units are set to meters.
https://drive.google.com/open?id=0B_8344myoqVLNDhiNjFXaG9PLTQ (https://drive.google.com/open?id=0B_8344myoqVLNDhiNjFXaG9PLTQ)
Thanks for sharing the files! good stuff..
Can you perhaps share the frame as well.. I am aware that you have eye balled the dimensions, but it would be good to have anyway )
Rasmus
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Getting these step files into the motobrick reference area would be great.
I agree with you guys, adding these to the motobrick hive mind is an excellent idea. How awesome would it be if we had access to k-bike CAD rather than having to model them ourselves. I think if we can get a thread going with solid models pinned to the project k-bikes section, it would be pretty beneficial to future motobrickers looking for CAD. I am happy to host the folder in my google drive, I changed the sharing settings to allow anyone with the link to edit the folder. I don't know who to talk to about pinning threads though.
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Can you perhaps share the frame as well
Sorry, I didn't think to add that one originally. It's in the folder now.
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Here is the video of me making the tragkorb mounts, I'll do a full project update video once I get the seat assembly welded up. Fun fact: it took me way longer to edit this video than it did to design and make the actual parts.
Project ApoKalypse Part 4.5: Making 50 Cal Ammo Can tragkorb Mount (https://www.youtube.com/watch?v=BfN-DcB7Rx8)