# What would I need to change? \[1st cut\]

**URL:** <https://forums.maslowcnc.com/t/what-would-i-need-to-change-1st-cut/17142>\
**Category:** No Judgement\
**Created:** [September 18, 2021, 5:35pm UTC](https://forums.maslowcnc.com/t/what-would-i-need-to-change-1st-cut/17142 "2021-09-18T17:35:20Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Esqy](https://avatars.discourse-cdn.com/v4/letter/e/c6cbf5/32.png) [@Esqy](https://forums.maslowcnc.com/u/Esqy)\
**Post date:** [September 18, 2021, 5:35pm UTC](https://forums.maslowcnc.com/t/what-would-i-need-to-change-1st-cut/17142/1 "2021-09-18T17:35:20Z")

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So I made my 1st cut (after a bit-less test run) - Used the Candy Cane outline from MakerMade.

There are a few questions.  
As you can see in the pic the thing starts really shallow (2.something mm). thats fine, I almost expected that as I didn’t set the depth properly. Shrug, an outline is fine. Alon the top curve, something happened and the bit went much deeper, and all the way through (11mm). the got caught and the bit snapped off sideways.

Any advice on this? Is it the router speed or z-depth?

 ![1st cut](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/3X/c/e/ce34941c38383df76bcd1f72a752a6ea0c77b034.jpeg)

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**Author:** ![Orob](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/orob/32/16344_2.png) [@Orob](https://forums.maslowcnc.com/u/Orob)\
**Post date:** [September 19, 2021, 7:46pm UTC](https://forums.maslowcnc.com/t/what-would-i-need-to-change-1st-cut/17142/2 "2021-09-19T19:46:20Z")

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Is the bit collet tight?

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**Author:** ![Esqy](https://avatars.discourse-cdn.com/v4/letter/e/c6cbf5/32.png) [@Esqy](https://forums.maslowcnc.com/u/Esqy)\
**Post date:** [September 19, 2021, 9:08pm UTC](https://forums.maslowcnc.com/t/what-would-i-need-to-change-1st-cut/17142/3 "2021-09-19T21:08:07Z")

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Yeah. My buddy reckons it might be the uneven-ness of the OSB board - the bit might just be randomly hitting dense patches, and getting dragged in.

I’m gonna grab an MDF sheet to try on that

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**Author:** ![dlang](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/dlang/32/859_2.png) [@dlang](https://forums.maslowcnc.com/u/dlang)\
**Post date:** [September 20, 2021, 1:48am UTC](https://forums.maslowcnc.com/t/what-would-i-need-to-change-1st-cut/17142/4 "2021-09-20T01:48:54Z")

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there are only three ways to have the depth of cut change

1. the motor spins to change it
2. the bit is loose and extends from the chuck
3. the router comes loose from the mount (on a ridgid router, this is the orange  
clip popping out of it’s slot)

to fix this, you need to figure out which of these happened. It has nothing to  
do with the material you are cutting.

David Lang

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<div class="post-metadata">

**Author:** ![Esqy](https://avatars.discourse-cdn.com/v4/letter/e/c6cbf5/32.png) [@Esqy](https://forums.maslowcnc.com/u/Esqy)\
**Post date:** [September 20, 2021, 8:38am UTC](https://forums.maslowcnc.com/t/what-would-i-need-to-change-1st-cut/17142/5 "2021-09-20T08:38:20Z")

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I know that the 1st time which broke the bit, the z-axis randomly just went down. Still no idea why that happened, every ‘dry run’ since has been fine and I’m using the same Gcode file.  
The router is solid, I know that much  
Must the the bit coming loose in that case.

Another day another attempt later tonight.