2008 CRF250R - QS138v3 70H - ANT - Sanyo UR18650-RX 20s20p - Votol EM260

[bananu7]

Hey, I have that throttle too, it's basically this one, right? Can you share the file, I'd love to print and try it out.

Here are the files.

Summary:
* Ref - exact copy of original, but holes are much too small (8x8mm center, 6mm cable)
* V1 - new cam profile, but holes still too small (first one I printed) - I filed it by hand to fit, but took a bit of effort.
* V2 - same cam profile, rotated center hole to pick up cable length (by about 8mm), has enlarged holes (8.2mm center, 6.1mm cable) - and that's still not enough, I'd add another .1mm offset to both.

To change the overall cable length, just rotate the middle mounting hole.

This is how it looks sliced - I've realized i haven't actually shown the cam itself.

 

[amberwolf]

The turn angle is still larger than the Surron throttle, so it should give me good enough modulation at slow speeds.

If you print it as an eccentric cam, with a logarithmic-type shape, you can give yourself fine low-throttle control but accelerated action at higher throttle positions.

EDIT: nevermind, I just reread your post after seeing your cutaway....

 

[harrisonpatm]

Thanks!

 

[harrisonpatm]

3d printing is pretty cool.

 

[bananu7]

While I'm slowly chipping away at the new wiring loom (will get a separate more detailed post), here's a tiny clip from my downhill run.

My perspective on bike weight has really shifted recently. I used to think I would love a 50kg electric motorbike, but I'm getting more and more confident that I'd rather have better suspension than less weight in the vast majority of the circumstances. I've jumped those tiny hops on multiple bikes, including a modern trailbike, and I feel by far the safest on the CRF. It's hard to beat the stability of 80f/110r tyres and 315mm of suspension travel that make it feel like it's nothing - and for a good reason, since it can land from much much higher. One might call it overkill, I call it valuing my life and health and still wanting to get a bit of air action.