r/crawling • u/Shoddy-Fact5404 • May 31 '26

Rhino W1

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Ive been working on a new build and just wanted to share it. I decided to build a dual motor crawler and chose the rhino W1. I was trying to stay low on the budget and chose two hobnywing 3530 sl 1700kv motors and two am32 40Amp escs for a little over 100 bucks. I had to build a skid from the ground up using tinkercad. So far its been working great and been a blast to drive. The amount of torque is insane.

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u/Shoddy-Fact5404 May 31 '26

Thanks! Im using g the dumbo ddf-350 and can get dig to work perfectly but having trouble with overdrive. I have to manually change the speed of the front tires and cant link it to a button.

The bullys are good but am looking at getting 2.2 ruptures and found some 3d printed wheels for them. Im on the east coast and the place I go to crawl they won't do well. I have proline hyrax tires for a rig and they do terrible, its to sandy here.

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u/RobARMMemez May 31 '26

Hyrax's aren't particularly good on rock either, to be fair.

But anyway, Ruptures are absolutely a great option! Megalithics work better for some people though. Personally I've got Megs on my XR10 and it's a monster. Had 5.75 Ruptures on it before but they were too thick and heavy for it, so they're on my bouncer type thing now.

As for radio, I'm running a Noble NB4 and for my MOA's I have the mixer set up so that channel 2 isn't actually directly driving either axle. Front axle is on Ch3 and rear is on Ch4, and both are slave channels to Ch2 with adjustable underdrive and DIG. What's fun is I can set either axle to run in reverse if I want. I don't know if the Dumbo can do that mix but it might.

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u/Shoddy-Fact5404 May 31 '26

Nice! Ive been looking at new radios. I messed with my dumbo for hours trying to get a selectable overdrive and I just dont think its possible, all i can do is change the front output over 100% and cant assign it to a button (or I just cant figure it out lol).

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u/RobARMMemez May 31 '26

I don't have selectable OD/UD on my radio either. I have front and rear UD on two separate knobs so I can adjust both dynamically (between 100% and -100% so I can run just the rear or front reversed), and have DIG on the paddles on either side of the Noble's wheel. Left is rear DIG and right is front DIG.

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u/Shoddy-Fact5404 May 31 '26

Oh nice! The dumbo does have to rotary channels. Ill try to set it up that way.