# Probe Specs Off **URL:** \ **Category:** Accessories\ **Created:** [May 23, 2022, 3:01pm UTC](https://forum.onefinitycnc.com/t/probe-specs-off/13238 "2022-05-23T15:01:27Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Bern](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/bern/32/7185_2.png) [@Bern](https://forum.onefinitycnc.com/u/Bern)\ **Post date:** [May 23, 2022, 3:01pm UTC](https://forum.onefinitycnc.com/t/probe-specs-off/13238/1 "2022-05-23T15:01:27Z")
I was driving myself nuts with why my full depth cuts would eat the crap out of my spoilboard. I thought for sure I was making some rookie mistakes and missing some concepts on referencing the machine bed for such cuts. I finally decided to pull out my calipers and found that the thickness of my OF probe was off by 1.4mm! I entered the measured value in the OF settings and I am good to go now. I was shocked at the variance in that dimension. ---
**Author:** ![TheyCallMeJohn](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/theycallmejohn/32/7657_2.png) [@TheyCallMeJohn](https://forum.onefinitycnc.com/u/TheyCallMeJohn)\ **Post date:** [May 23, 2022, 3:33pm UTC](https://forum.onefinitycnc.com/t/probe-specs-off/13238/2 "2022-05-23T15:33:31Z")
I seem to have a fair amount of repeatability issues with the probe. I even did the calibration program but for some reason now it is back to cutting off dimensions again. At least 1 mm to deep in the Z axis. ---
**Author:** ![GrimResistance](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/grimresistance/32/7198_2.png) [@GrimResistance](https://forum.onefinitycnc.com/u/GrimResistance)\ **Post date:** [May 23, 2022, 3:59pm UTC](https://forum.onefinitycnc.com/t/probe-specs-off/13238/3 "2022-05-23T15:59:21Z")
Maybe your probe isn’t perfectly flat? Try measuring it in a few different spots. ---
**Author:** ![TheyCallMeJohn](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/theycallmejohn/32/7657_2.png) [@TheyCallMeJohn](https://forum.onefinitycnc.com/u/TheyCallMeJohn)\ **Post date:** [May 24, 2022, 6:49pm UTC](https://forum.onefinitycnc.com/t/probe-specs-off/13238/4 "2022-05-24T18:49:34Z")
I will give that a try but I have a hard time thinking @charleyntexas would have it that far off. ---
**Author:** ![Matticustard](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/matticustard/32/9039_2.png) [@Matticustard](https://forum.onefinitycnc.com/u/Matticustard)\ **Post date:** [May 25, 2022, 4:59pm UTC](https://forum.onefinitycnc.com/t/probe-specs-off/13238/5 "2022-05-25T16:59:37Z")
You may have already ruled this out, but it’s worth noting that actual material thicknesses can vary, even if coming from the same source. If you are repeating a previously made program but the material is now a bit thinner, it will of course cut further into the spoilboard. ---
**Author:** ![TheyCallMeJohn](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/theycallmejohn/32/7657_2.png) [@TheyCallMeJohn](https://forum.onefinitycnc.com/u/TheyCallMeJohn)\ **Post date:** [May 25, 2022, 7:43pm UTC](https://forum.onefinitycnc.com/t/probe-specs-off/13238/6 "2022-05-25T19:43:36Z")
@Matticustard valid point but I zeroed off the wasteboard. It shouldn’t be cutting that far into the wasteboard if I am zeroing off it. ---
**Author:** ![Bern](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/bern/32/7185_2.png) [@Bern](https://forum.onefinitycnc.com/u/Bern)\ **Post date:** [May 26, 2022, 11:34am UTC](https://forum.onefinitycnc.com/t/probe-specs-off/13238/7 "2022-05-26T11:34:55Z")
Silly question, but I wil ask it anyway… Are your calipers accurate? If you go into the settings and just gradually edit the Z probe height, can you back into the dimension that wont cut into your spoilboard?