# What is correct chain pitch? **URL:** \ **Category:** Technical Details\ **Created:** [December 9, 2017, 5:56pm UTC](https://forums.maslowcnc.com/t/what-is-correct-chain-pitch/1430 "2017-12-09T17:56:07Z")\ **Posts on this page:** 1\ **Showing post:** 64
**Author:** ![krkeegan](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/krkeegan/32/17443_2.png) [@krkeegan](https://forums.maslowcnc.com/u/krkeegan)\ **Post date:** [December 13, 2017, 7:00am UTC](https://forums.maslowcnc.com/t/what-is-correct-chain-pitch/1430/64 "2017-12-13T07:00:05Z")
Thanks to @dlang and @JDogHerman who both took apart their motors (three times for David) so we could count the gear ratio and @blurfl for his expert assistance it looks like the gear ratio is actually 289.776234568:1 resulting in 8113.7345679 steps/revolution. (i was close empirically with 8114). Changing the gear ratio in GC should to this value should solve the issue. You can find the discussion and photos to perform you own teeth counting here: > [@Whats inside the gearbox/motor?](https://forums.maslowcnc.com/t/whats-inside-the-gearbox-motor/190): > > So following in the footsteps of our patron saints AvE & Dave Jones, I took apart my gear box to see what secrets it held inside. Here is what I have found… The gearbox (from my counting) as a 23:1 ratio from the motor output to output shaft. Both ends of the output shaft ride on a shielded bearing. Most of the gears are powdered metal with the exception of the worm shaft(motor output, single toothed, brass?) and the worm wheel (plastic). Each gear is held in place with steel … --- _[View the full topic](https://forums.maslowcnc.com/t/what-is-correct-chain-pitch/1430)._