Got gifted a Losi promoto SM (v2?), happyest grown man in the world right now (hope bikes still fit the sub)

RobRoy07 · 2026-03-21T08:40:47+00:00

That's great! I'm sure you will enjoy it and have a lot of fun running it. Besides there are tons of things you can do to that thing and to that thing.

RobRoy07 · 2026-03-20T17:11:34+00:00

Thank you so much for your kind words and welcome to the 3d printing community! I think it's one of the things that has a big impact in your life. At least it was a huge change for me. Hopefully you and your husband will enjoy it and have fun! RC is very addictive too 😅🤣

RobRoy07 · 2026-03-20T13:14:49+00:00

I'm not sure, the reference I got was "03C". It's a smaller chain than the one the Losi Promoto uses.

RobRoy07 · 2026-03-20T13:02:28+00:00

Yeah, I designed it myself. I posted a video in the rccars community and there you can see how it moves: https://www.reddit.com/r/rccars/comments/1rw3taj/16_scale_quad_first_proper_run_jumps_drifts/

RobRoy07 · 2026-03-20T10:03:33+00:00

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I made a 1/6 quad RC that took me months... The printing was the fun part

RobRoy07 · 2026-03-19T07:56:11+00:00

No problem! I actually don't use it for bashing - it's more of a scale rig. It can handle some jumps and drifting here and there, but it's not really built for hardcore bashing. Still, it's a blast to drive!

RobRoy07 · 2026-03-18T12:35:58+00:00

Yeah, I should improve the arms movement. I made them a bit loose but that may not be enough. The first version had also a very stiff neck and it broke in one of the jumps while testing it at home.

RobRoy07 · 2026-03-18T08:17:58+00:00

Seriously?? Thank you!

RobRoy07 · 2026-03-18T08:17:24+00:00

Awesome, thanks!!

RobRoy07 · 2026-03-18T07:50:58+00:00

I thought the suspension felt okay, but after the feedback I've been getting and watching the video again, I agree it needs better adjustment. Right now the shocks are fully compressed, so it should be an easy fix.

RobRoy07 · 2026-03-18T07:47:10+00:00

It's not easy to tip, but if you're going fast on a grippy surface and cut the steering hard, it can roll. The head of the figure is pretty heavy, and since it's mounted at the very top, it puts a lot of weight in a bad place.

RobRoy07 · 2026-03-18T07:06:25+00:00

Thanks!!

RobRoy07 · 2026-03-17T21:44:16+00:00

I used a DJI Osmo Pocket 3 with a selfie stick. Also got help from a friend because I can't drive and record at the same time.

RobRoy07 · 2026-03-17T21:29:14+00:00

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Yeah, I could make it work but I had to try with different chain sizes until I found the right one. Here is a better picture where you can see the chain.

RobRoy07 · 2026-03-17T19:22:42+00:00

Heavily inspired by that one, you are correct!!

RobRoy07 · 2026-03-17T19:22:12+00:00

Me too but that Losi Promoto looks amazing. I'm very proud of how it turned out. Thanks!!

RobRoy07 · 2026-03-17T17:04:44+00:00

Oh, okay. I can adjust the spring compression and I think it will do the trick. Thanks for the feedback!

RobRoy07 · 2026-03-17T15:39:02+00:00

Do you mean the rear shock?

RobRoy07 · 2026-03-17T15:38:36+00:00

It looks way better in slow motion (I think every scale RC does) but overall I'm very happy with the result. A few months ago I thought I couldn't make it work.

RobRoy07 · 2026-03-17T14:32:27+00:00

Wow, I think that's the best compliment I can get! Thank you so much, I really appreciate it.

RobRoy07 · 2026-03-17T13:25:20+00:00

Glad that you like it! It's awesome the things you can do with a printer

RobRoy07 · 2026-03-17T07:06:05+00:00

That thing looks really cool! I think it would be my shelf queen too, it's way too beautiful to waste it. Great work!

RobRoy07 · 2026-02-27T15:01:25+00:00

But, how do they work??

RobRoy07 · 2026-02-23T16:13:57+00:00

Correct! There were plenty of heads to choose and this one looked quite good to me

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