# Sprocket's question **URL:** \ **Category:** Troubleshooting\ **Tags:** sprocket\ **Created:** [February 22, 2019, 3:02am UTC](https://forums.maslowcnc.com/t/sprockets-question/8867 "2019-02-22T03:02:39Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![yamato](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/yamato/32/15324_2.png) [@yamato](https://forums.maslowcnc.com/u/yamato)\ **Post date:** [February 22, 2019, 3:02am UTC](https://forums.maslowcnc.com/t/sprockets-question/8867/1 "2019-02-22T03:02:39Z")
This is a picture of my sprocket. When setting it at 12 o’clock, Which is better, A or B? ![IMG_3075-1](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/b/bc2b33b25f37e22c1c5a6d235818045105a6194b.jpeg) ![IMG_3076-1](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/2/28e59f7fa538f1053aef5f9fa3c1162a5bd372b1.jpeg) Or C, buy a new sprocket? Thank you for listening. ---
**Author:** ![DakotaJim](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/dakotajim/32/7581_2.png) [@DakotaJim](https://forums.maslowcnc.com/u/DakotaJim)\ **Post date:** [February 22, 2019, 3:46am UTC](https://forums.maslowcnc.com/t/sprockets-question/8867/2 "2019-02-22T03:46:06Z")
I set mine at A. B seems like 12:07. And I guess I don’t understand what C would do for you? ---
**Author:** ![TheMerryYeoman](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/themerryyeoman/32/8009_2.png) [@TheMerryYeoman](https://forums.maslowcnc.com/u/TheMerryYeoman)\ **Post date:** [February 22, 2019, 4:46am UTC](https://forums.maslowcnc.com/t/sprockets-question/8867/3 "2019-02-22T04:46:13Z")
I see what you are saying now (after contemplating your pictures. You are questioning the flat spot on the shaft vs the teeth on the sprocket? Go with the teeth on the sprocket being straight up and down. Especially since this is what is related to the rest of the calibration process. The shaft could look like ‘D’ as long as the teeth are at 12 & 6 O’CLOCK. 🙃🤣🤸 ⚙ ---
**Author:** ![yamato](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/yamato/32/15324_2.png) [@yamato](https://forums.maslowcnc.com/u/yamato)\ **Post date:** [February 22, 2019, 6:58am UTC](https://forums.maslowcnc.com/t/sprockets-question/8867/4 "2019-02-22T06:58:10Z")
> [@TheMerryYeoman](#): > > I see what you are saying now (after contemplating your pictures. You are questioning the flat spot on the shaft vs the teeth on the sprocket? My question is exactly that. Thank you for answering ridiculous questions.🤣 ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [February 22, 2019, 8:27am UTC](https://forums.maslowcnc.com/t/sprockets-question/8867/5 "2019-02-22T08:27:30Z")
A [Set your 12 o'clock position with a level... because](https://forums.maslowcnc.com/t/set-your-12-oclock-position-with-a-level-because/8445) [Creating the 12O'Clock calibration level in FreeCAD](https://forums.maslowcnc.com/t/creating-the-12oclock-calibration-level-in-freecad/8598) ---
**Author:** ![Keith](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/keith/32/1332_2.png) [@Keith](https://forums.maslowcnc.com/u/Keith)\ **Post date:** [February 22, 2019, 2:52pm UTC](https://forums.maslowcnc.com/t/sprockets-question/8867/6 "2019-02-22T14:52:21Z")
> [@yamato](#): > > Thank you for answering ridiculous questions If there is confusion, the question is not ridiculous. Now had the question have been “will painting the sprocket green make calibration easier than painting it pink?” that might be construed as ridiculous. ---
**Author:** ![Silverbug](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/silverbug/32/8423_2.png) [@Silverbug](https://forums.maslowcnc.com/u/Silverbug)\ **Post date:** [February 22, 2019, 9:03pm UTC](https://forums.maslowcnc.com/t/sprockets-question/8867/7 "2019-02-22T21:03:06Z")
only because everyone knows painting it green would be the best… ---
**Author:** ![Joshua](https://avatars.discourse-cdn.com/v4/letter/j/48db29/32.png) [@Joshua](https://forums.maslowcnc.com/u/Joshua)\ **Post date:** [February 23, 2019, 2:08pm UTC](https://forums.maslowcnc.com/t/sprockets-question/8867/8 "2019-02-23T14:08:15Z")
I think this is a really good question, because it highlights this fact; the positioning of the chain is more important than the positioning of the sprocket. There is some backlash at the interface between the chain and the sprocket. So, when the sprocket is exactly at 12 O’Clock, the chain will be a little forward from this, due to the forward tension in the chain and the backlash at this interface. ---
**Author:** ![TheMerryYeoman](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/themerryyeoman/32/8009_2.png) [@TheMerryYeoman](https://forums.maslowcnc.com/u/TheMerryYeoman)\ **Post date:** [February 23, 2019, 4:43pm UTC](https://forums.maslowcnc.com/t/sprockets-question/8867/9 "2019-02-23T16:43:43Z")
If I understand you correctly, I would think the difference would be whether it was turning clockwise or counterclockwise to reach its final destination of perfection per se. I also think that this would be spent soon after in any other process. The more I think about what I said here, the more I wonder if I understand you correctly!😜