How Do You Calculate a Worm Gear Ratio?

[@The_RC_Family]

Really helpful mate, thank you

[@havikhobbies]

Thanks mate, I appreciate you taking the time to hang out!

[@GeezerGramps]

What about the TRX4m speed gears?

[@havikhobbies]

The speed gears with Scx24 axle will have a crawl ratio of around 77:1 IIRC.

[@robconlin4815]

Simply look at the leads on a worm gear. A single lead worm will move the worm wheel 1 tooth per revolution, a double lead will move the worm wheel 2 teeth per revolution, a triple lead will move the worm wheel 3 teeth per revolution etc.

[@havikhobbies]

Good information! Thanks mate!

[@stunod-RC]

Injora overdrive.. 2/13 is about 108:1.. or 2/12 is 100:1.. the Trashxas high speed is too high (9.7 = 77:1) FYI.

[@havikhobbies]

I have some underdrive gears lying around somewhere, haven't looked at them yet. I think the the Trail gears with stock SCX24 axle gears will be a good starting point. Thanks for the helpful information, and for hanging out!