# Probe function works in metric but not imperial **URL:** \ **Category:** ❓ Question\ **Created:** [February 19, 2022, 1:28am UTC](https://forum.sienci.com/t/probe-function-works-in-metric-but-not-imperial/5228 "2022-02-19T01:28:20Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![braehill](https://forum.sienci.com/user_avatar/forum.sienci.com/braehill/32/3017_2.png) [@braehill](https://forum.sienci.com/u/braehill)\ **Post date:** [February 19, 2022, 1:28am UTC](https://forum.sienci.com/t/probe-function-works-in-metric-but-not-imperial/5228/1 "2022-02-19T01:28:20Z")
Hi, I’m fairly new to CNC and very new to Gsender. I have a MillRight Carve King 2 and purchased their touch probe with it. I run it off of a Raspberry Pi. 4000 all in one keyboard/Pi. I have plenty of strange things happen and will try to resolve them one at a time. My most recent issue is when using the touch probe with my machine set to imperial measurements it will not complete the Y axis portion whether I run the XYZ or the Y by itself without giving me a #2 error. That being said I found out on my last project that if I set my settings to metric, I can use the probe feature without issue. I’m wondering if this is something that I’m doing wrong or if it’s an actual code issue. I had no issues with the probe function when using USG, just many other issues. Thanks. Len ---
**Author:** ![KGN](https://forum.sienci.com/letter_avatar_proxy/v4/letter/k/c77e96/32.png) [@KGN](https://forum.sienci.com/u/KGN)\ **Post date:** [March 2, 2022, 2:54pm UTC](https://forum.sienci.com/t/probe-function-works-in-metric-but-not-imperial/5228/2 "2022-03-02T14:54:33Z")
Hi, Are you getting alarm 2 or error 2? Could you share the contents of your console when this happens? Thanks, Kevin ---
**Author:** ![braehill](https://forum.sienci.com/user_avatar/forum.sienci.com/braehill/32/3017_2.png) [@braehill](https://forum.sienci.com/u/braehill)\ **Post date:** [March 6, 2022, 12:25am UTC](https://forum.sienci.com/t/probe-function-works-in-metric-but-not-imperial/5228/3 "2022-03-06T00:25:18Z")
Yes I get Error#2. My shed is not heated so I haven’t been spending much time out there, but when I do I’ll share what I find. ---
**Author:** ![braehill](https://forum.sienci.com/user_avatar/forum.sienci.com/braehill/32/3017_2.png) [@braehill](https://forum.sienci.com/u/braehill)\ **Post date:** [March 6, 2022, 12:27am UTC](https://forum.sienci.com/t/probe-function-works-in-metric-but-not-imperial/5228/4 "2022-03-06T00:27:53Z")
Sorry, I think it is Alarm#2, something about an unexpected movement before 38.2 I believe. ---
**Author:** ![braehill](https://forum.sienci.com/user_avatar/forum.sienci.com/braehill/32/3017_2.png) [@braehill](https://forum.sienci.com/u/braehill)\ **Post date:** [March 19, 2022, 12:17pm UTC](https://forum.sienci.com/t/probe-function-works-in-metric-but-not-imperial/5228/5 "2022-03-19T12:17:26Z")
Kevin, I got a chance to run my machine for a simple facing job last night . I was having all sorts of trouble so I flashed GRBL and uploaded 1.05 onto my Raspberry Pi and the probe function worked fine. I was having a problem with a constant Y+ offset and it seemed to go away for now also. I plan on getting some more time today in the shop and will post any updates. Thanks. ---
**Author:** ![braehill](https://forum.sienci.com/user_avatar/forum.sienci.com/braehill/32/3017_2.png) [@braehill](https://forum.sienci.com/u/braehill)\ **Post date:** [March 20, 2022, 10:02pm UTC](https://forum.sienci.com/t/probe-function-works-in-metric-but-not-imperial/5228/6 "2022-03-20T22:02:10Z")
I got a little time to run the machine again. This time I ran the surface function on both sides of a piece of HDPE and then ran a program that I had trouble with the offset. It’s a simple program that would show the offset even at a glance and it seems to be gone. I’ll try some other things later to verify my results but that is all that I had time for today. ---
**Author:** ![KGN](https://forum.sienci.com/letter_avatar_proxy/v4/letter/k/c77e96/32.png) [@KGN](https://forum.sienci.com/u/KGN)\ **Post date:** [April 5, 2022, 2:57pm UTC](https://forum.sienci.com/t/probe-function-works-in-metric-but-not-imperial/5228/7 "2022-04-05T14:57:18Z")