3D printed RC truck V3: Center differential

by MrCrankyface, published

3D printed RC truck V3: Center differential by MrCrankyface Jul 19, 2016
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Here's the center differential to go with the V3 front and rear axle.
Next up is the frame pieces to put the axles to.

You can check out the assembly video for this and the other parts over at my youtube

Note the x at the end of some filenames, that indicates how many you need of it.

Hardware needed:
18x M3x8 grub screw
2x M3x10
5x Counter-sunk M3 screws
2x M3x16
1x 4mm rod, 18mm long
4x 6700ZZ or equivalent bearing(15x10x4mm)

For more V3 parts, check out my V3 collection:

Check me out at:
Youtube: http://www.youtube.com/c/MrCrankyfaceProjects
Instagram: https://www.instagram.com/mr.crankyface/
3d hubs: https://www.3dhubs.com/malm%C3%B6/hubs/mrcrankyface
Patreon: http://patreon.com/Mrcrankyface

Print Settings


The Frankenstein








20% or more


Everything should be printable without support.

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can you send me a link for the screws and bearings. if you cant it is ok.

Would it be possible to get the CAD files? I am trying to adapt your axles and general design to work on this: http://www.thingiverse.com/thing:2056923 but there are several pieces that would need severe modification. I want to re-use as much as possible, but I would have to make a different housing at least.

RC MB Jeep in 1:10
by ossum

What fill did you print your U-joint pieces at? All of the U-joints (originally printed at 20%) I printed broke during use, so I replaced them with ones printed at 100% fill.

I printed the thicker parts of it @ 40% and the "wings" that attach to the cross @ 90%

How much sanding did you have to do to the parts?

Mostly very light sanding on parts like the wheel hubs to make them fit as snug as possible.

This is really cool. Thank you for taking the time and designing this.

Nice job On this. You have This setup as a fulltime awd however all the power can still go out through one tire that has no traction. If you build a transfer case that can lock the differential then both axles would have to lose traction on a tire to stop the truck. a servo could easily engage and disengage the lock as needed

Really Awesome Job
Great video too
Thanks for sharing, looks like alot of time an effort.

Thanks, great to hear it's appreciated! :)
Yeah, it's probably taken a few hundred hours so far counting CAD, sketching and printing.