# Losing zero position
**URL:** https://community.inventables.com/t/losing-zero-position/29081
**Category:** Troubleshooting
**Created:** [October 18, 2016, 6:50pm UTC](https://community.inventables.com/t/losing-zero-position/29081 "2016-10-18T18:50:25Z")
**Posts on this page:** 4
**Page:** 2
### Author:  [@BretPatterson](https://community.inventables.com/u/BretPatterson)
#### Post date: [October 19, 2016, 5:02pm UTC](https://community.inventables.com/t/losing-zero-position/29081/27 "2016-10-19T17:02:26Z")
> [@AaronMatthews](#):
>
> This may be part of the problem. For some reason the tool change commands can cause UGS to go a bit odd at times. Unless you have a automatic tool changer there is no need for it. I recommend editing your post processor to not add that command, or manual remove it from your code. I found UGS was a lot more stable after that.
>
> And the “return to Zero” button can be unpredictable. I think a lot of how it behaves depends on what coordinate mode you are in, what offset may be loaded, or left over in memory from a previous carve, etc. Instead, I recommend writing a macro that will return your bit to your preferred start point or bit change point and use that. (something like G1 Z10 Y0 X-10)
Good to know, will do.
---
### Author:  [@BretPatterson](https://community.inventables.com/u/BretPatterson)
#### Post date: [October 19, 2016, 5:02pm UTC](https://community.inventables.com/t/losing-zero-position/29081/28 "2016-10-19T17:02:59Z")
> [@JustinBusby](#):
>
> I may have missed it stated but Fusion360 was adding the tool commands for me. I had to edit the bit settings and choose manual tool change for it to not be included. It’s under the CAM setup options when you select the bit size.
nice saw this last night, going to make that change to get rid of the Tool changes.
---
### Author:  [@BretPatterson](https://community.inventables.com/u/BretPatterson)
#### Post date: [October 19, 2016, 5:16pm UTC](https://community.inventables.com/t/losing-zero-position/29081/30 "2016-10-19T17:16:32Z")
> [@PhilJohnson](#):
>
> I use the easel post processor in Fusion 360 and I only have to check for the M3 code and put an M5 coden at the end. Never had a problem.
I also use the easel post processor, which included those tool change codes. I’ll double check that it didn’t somehow use a different post processor, but pretty sure it’s using the easel post processor.
---
### Author:  [@StanPhillips](https://community.inventables.com/u/StanPhillips)
#### Post date: [October 19, 2016, 5:17pm UTC](https://community.inventables.com/t/losing-zero-position/29081/31 "2016-10-19T17:17:53Z")
Thanks Phil!
[Previous page](https://community.inventables.com/t/losing-zero-position/29081.md?page=1)