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  1. #1
    RC Racer
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    New stainless steel chassis custom* build

    Well i have seen alot of custom chassis that have sparked an interest. I now found some plans for them on the internet in pdf and CAD files. These will work perfect for the waterjet. I am going to reduce the length by 40mm so it stays true to the 1/16 scale size. I will take out the 40 mm between the rear shock mount and the motormount. maybe just 25 mm so i can put a bigger motor in it.
    *this has been done before by Wiggy Fuzz and the chassis was designed by kazuaki
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  2. #2
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    a few questions:
    1)why stainless steel?
    2)what will you use the new merv for mostly? bashing? race? top speed?

  3. #3
    RC Racer
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    stainless steel doesnt have to be that thick and can easily be bent plus i can cut it faster with the waterjet. I am looking to mostly bash and race not top speed. also i just want to have a nice little project
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  4. #4
    RC Turnbuckle Jr.
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    why reduce the length? it is short enough as is.....

    reducing it will make it even less stable

  5. #5
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    Quote Originally Posted by jimbo74 View Post
    why reduce the length? it is short enough as is.....

    reducing it will make it even less stable
    no im reducing the lenght of kazukais design he lenghtend it by 40 mm since he does 100 mph speed runs
    http://www.nuibe.com/rc/minierevo/ch...s_project.html
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  6. #6
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    bend easier? i can understand that when you will make the chassis, but what about its durability?
    also, like Jimbo said, shorter length won't be good for stability, especially if you have a more powerful motor in there

    not bashing your idea, just chucking in some points

  7. #7
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    no im planning on extending the stock chassis by 15-25 mm . the steel is hard to bend but aluminum can easily break if you try to bend it. kazukais desing lengthend the chassis by 40 mm i only want to lenghten it about 15-25 mm
    Summit. MM 2200kv
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  8. #8
    RC Racer
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    I will be watching this with interest.

  9. #9
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    Quote Originally Posted by Maus View Post
    I will be watching this with interest.
    I will be updating it as I make progress.
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  10. #10
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    Whoops, i posted that a bit too late to see your reply
    Yep, like Maus i wanna see how this turns out
    Did you make your own design or is it Kazukais?
    Also, what thickness are you going with?

  11. #11
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    i am planning on altering it but stayinng with the same concept ( solid no bottom plate so gravel or debri doesn't hurt my lipos . i was thinking like 3mm
    Summit. MM 2200kv
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  12. #12
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    they only include the top and bottom chassis.
    Care to share the battary doors and most importantly the motor mount?
    I can use that file and personalize it...
    I have a laser cutting machine at work and may possible be able to fabricate the components.
    I'm interested to lengthen the chassis as I find the wheel base too short, it tend to cause the car to spin out of control.
    I'm a beginner RC car, but I'm very interested to modify the Revo.
    That is the main reason I choose a revo, there are 1001 ways to modify it.

  13. #13
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    kazukai fab'd his own motor mount and used alloy sheets with screws as battery doors, thats all hand made, so there won't be any plans for it at all...

    this thread here goes into detail of the build
    http://www.rc-monster.com/forum/showthread.php?t=23804

    its great to see that he is sharing the CAD files, not many would be so generous

    so summit, your planning on having a solid stainless 3mm bottom? are you worried about weight?

    man! if i weren't going on holiday soon, i would join you on this build

  14. #14
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    by the way, which CAD software are you guys using?
    i'm new to this, so i wanna get some practice with basic designs. gotta love all this free time with summer break

  15. #15
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    Quote Originally Posted by Sir.Yilufa View Post
    they only include the top and bottom chassis.
    Care to share the battary doors and most importantly the motor mount?
    I can use that file and personalize it...
    I have a laser cutting machine at work and may possible be able to fabricate the components.
    I'm interested to lengthen the chassis as I find the wheel base too short, it tend to cause the car to spin out of control.
    I'm a beginner RC car, but I'm very interested to modify the Revo.
    That is the main reason I choose a revo, there are 1001 ways to modify it.
    i am going to use the stock motormount or maybe the one from the brushed version
    Summit. MM 2200kv
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  16. #16
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    Quote Originally Posted by Umar Musa View Post
    by the way, which CAD software are you guys using?
    i'm new to this, so i wanna get some practice with basic designs. gotta love all this free time with summer break
    yeah id love to have someone join me hmmm might just fly to newzealand. I am not allowed to specify what software i am using but it is for a waterjet I havent fully decided on what thickness for the bottom i do have a bunch of 2mm so i might do that or just both
    my software is really good and pricey
    but here is a free one i used a while ago http://www.3ds.com/products/draftsig.../#xtor=AD-508-[swfreetools]-[middle]-[intext]-[www.solidworks.com]
    Last edited by summitracer; 11-28-2011 at 05:44 PM.
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  17. #17
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    awesome mate!
    i'll get practicing on it
    quick question, how much do you expect to pay for the fabrication service?
    i wouldn't know how much is a good price...

  18. #18
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    i dont have to pay but i think taking time and abbrasive plus water usage into consideration id say aprx 40-50 $ US
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  19. #19
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    Ok, so im looking at $100 nzd, which i can accept, xbox games cost about the same lol

    Have you taken the rear center driveshaft into consideration?

  20. #20
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    What effect does center diff have on this tray?

    Interested in all options I think center diff alone might be a bigun. no more wheelies, and more straight powah.

  21. #21
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    It really helps keep that power in check, good for racing. Some bashers like it some dont (i dont lol)

  22. #22
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    Thanks Umar

  23. #23
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    Ouch. That software is painful to look at. I am using Solidworks Professional. That is what I used to model up my ESC mount and do the print for it. We dont use the CAM package though. Our toolroom uses Unigraphics for that.

    I have a licensed seat of Solidworks at home too. Pricey is not the word I would use to describe it. I would use something a bit more harsh.

  24. #24
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    Quote Originally Posted by Umar Musa View Post
    Ok, so im looking at $100 nzd, which i can accept, xbox games cost about the same lol

    Have you taken the rear center driveshaft into consideration?
    well the rear drive shaft is able to extend a bit . I hope it answers your question
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  25. #25
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    Quote Originally Posted by igglesfan View Post
    What effect does center diff have on this tray?

    Interested in all options I think center diff alone might be a bigun. no more wheelies, and more straight powah.
    I am actually not going to put one in. I will use it as a basher and recer. I am working on a speeder as we speak lol. I will put in a big 550 bl motor with a castle esc. I think the center diff will do no harm at all. But it will help with wheelies and power. I am aiming at about 90-95 mph.
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  26. #26
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    Quote Originally Posted by summitracer View Post
    well the rear drive shaft is able to extend a bit . I hope it answers your question
    sorry man, i was thinking about my self. most of the people who go big block don't have problems with the stock center drive shafts, a few do, including me they kept breaking so i had to go with a steel set (integy v2), but it has limited adjustibility on length. this is a big flaw on my design as i don't want to modify any driveshafts. hmm back to the drawing board...

    i'm going for a simple single piece bottom, 2mm thick stainless steel (yes i'm taking in your choice of material ). i don't need it to be thick because i'll still be using my tbone skid set as protection.

    hows your design coming along?

  27. #27
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    i think that the tbone will be pointless except for one thing which is protect the lipos. I removed the holes in the bottom . I was afraid a rock might puncture them :/
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  28. #28
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    actually the stock revo have 2 drive shaft, one short and one long.
    I'm thinking if i should use 2 long drive shaft so that I could have a longer wheel base.
    U guys have any advise?
    I'll be drafting the chassis out using solidworks, not sure if i can export it out and share with you guys as I'm using the student version.

  29. #29
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    Quote Originally Posted by Sir.Yilufa View Post
    actually the stock revo have 2 drive shaft, one short and one long.
    I'm thinking if i should use 2 long drive shaft so that I could have a longer wheel base.
    U guys have any advise?
    I'll be drafting the chassis out using solidworks, not sure if i can export it out and share with you guys as I'm using the student version.
    Yes i know but i extended the chassis behind the transmission i have all the plans and cad files including pdf files
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  30. #30
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    Good news everyone.
    There is a free CAD software that is able to open and edit DXF file that the revo chassis is in.
    It is called Draftsight from solidworks.
    However, its a 2D instead of a 3D.
    It better then nothing tho .....

  31. #31
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    autodesk inventor is free, and it is 3d. Just install and run the 30 day trial. Save the work file prior to the expiration of the trial period. If it does expire, uninstall and reinstall.

  32. #32
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    you dont need 3d software. it is all on an x and y axis and not also on a z unless you countersink the holes
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  33. #33
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    subscribed....I love custom builds
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  34. #34
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    Quote Originally Posted by cch1978 View Post
    subscribed....I love custom builds
    haha thanks ill post pics as soon as i have the parts cut out
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  35. #35
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    i finally managed to decide on the design that i am going with, its going to be a bit simpler than Kazukai's.

    i've hit a big problem, i want to edit the original design so that i can change it to my own liking, it says the file is read only when i try to open it using draftsight. have you guys come across this? how can i get into editing it?

  36. #36
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    select the whole design, paste it into another new file.
    similar to what you encounter with read only files in microsoft office.
    Btw, i would recommend changing the micro servo to accommodate a standard servo.
    Maybe can have standard servo on the left and micro servo on the right.
    This way you could change to a more powerful servo easily.
    But it is all up to you....

  37. #37
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    Quote Originally Posted by Umar Musa View Post
    i finally managed to decide on the design that i am going with, its going to be a bit simpler than Kazukai's.

    i've hit a big problem, i want to edit the original design so that i can change it to my own liking, it says the file is read only when i try to open it using draftsight. have you guys come across this? how can i get into editing it?
    I havent had a problem. Try saving it to your desktop and reopening it. Im planning on cutting it on friday. ( make sure you cut out the two transmission mount pieces)
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  38. #38
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    Quote Originally Posted by summitracer View Post
    I havent had a problem. Try saving it to your desktop and reopening it. Im planning on cutting it on friday.
    thanks dude, that did it! i kept clicking on "open with" rather than "save as", silly me lol

    i've finished with my design, i brought the length down to 250mm, i really don't want to have to modify my center driveshaft, the integy v2 is the only reliable one i have... in the future i will be looking at carbon fiber for the lower plate and lengthening both plates, but for now, the stock length will do.

    also going to order delrin sheet from uk to make a custom "t-bone" style skid set. really don't wanna mess up my sexy new chassis haha. all i have to do now is enquire at different machinists. can't wait!

    Quote Originally Posted by summitracer View Post
    ( make sure you cut out the two transmission mount pieces)
    mounting tabs for the rear of the transmission case? i'm going to do that by hand, can't be bothered getting that machined

    do you work in a milling company?

  39. #39
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    Quote Originally Posted by Sir.Yilufa View Post
    Btw, i would recommend changing the micro servo to accommodate a standard servo.
    Maybe can have standard servo on the left and micro servo on the right.
    This way you could change to a more powerful servo easily.
    But it is all up to you....
    you know what, thats a really good idea if you wanna go all out . its not too much work to move the tranny case back 10-15mm to fit in a standard size servo, preferably something low profile, like a savox SC-1251MG:
    Speed(@6.0V sec/60): .09
    Torque(@6.0V oz-in): 125.0

    i'd go with that design, but i'm currently using a ******* 390dmh which is plenty enough for even my biggest tires.

    by the way summit, i know this is your thread, i hope you don't feel like we're hijacking it. its just easier to pour all our resources in one place

  40. #40
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    Quote Originally Posted by Umar Musa View Post

    by the way summit, i know this is your thread, i hope you don't feel like we're hijacking it. its just easier to pour all our resources in one place
    no prob and no i do not work at a milling company ill pm you the details
    Status Update:
    I have reduced kazukais desing so my driveshafs would fit with no issues
    I am going to use 1/8 aluminium and 20mm hex standofs with m3 threads with 12 mm m3 round screws.(countersinking weakens the metal and is a pain to do)
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