# Height control plasma

**URL:** <https://forum.arcdroidcnc.com/t/height-control-plasma/870>\
**Category:** General Discussion\
**Created:** [January 12, 2023, 8:52pm UTC](https://forum.arcdroidcnc.com/t/height-control-plasma/870 "2023-01-12T20:52:57Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![steve.lessard](https://avatars.discourse-cdn.com/v4/letter/s/9dc877/32.png) [@steve.lessard](https://forum.arcdroidcnc.com/u/steve.lessard)\
**Post date:** [January 12, 2023, 8:52pm UTC](https://forum.arcdroidcnc.com/t/height-control-plasma/870/1 "2023-01-12T20:52:57Z")

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is there a built in height control?

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**Author:** ![bobplewajr](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.arcdroidcnc.com/bobplewajr/32/156_2.png) [@bobplewajr](https://forum.arcdroidcnc.com/u/bobplewajr)\
**Post date:** [January 15, 2023, 12:44pm UTC](https://forum.arcdroidcnc.com/t/height-control-plasma/870/2 "2023-01-15T12:44:15Z")

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Yes, maybe, no. 😂 @steve.lessard do a search on “thc” and you will see what I mean

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**Author:** ![bobplewajr](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.arcdroidcnc.com/bobplewajr/32/156_2.png) [@bobplewajr](https://forum.arcdroidcnc.com/u/bobplewajr)\
**Post date:** [January 15, 2023, 12:47pm UTC](https://forum.arcdroidcnc.com/t/height-control-plasma/870/3 "2023-01-15T12:47:42Z")

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There are a lot of posts on this topic. Some folks have it working, and share their YouTube videos. I believe @Andrew still has the concept on the drawing table too. As much as I thought THC would be needed, I’ve found after many projects/cuts, I didn’t need it at all.

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**Author:** ![Amp\_Mechanic\_JB](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@Amp\_Mechanic\_JB](https://forum.arcdroidcnc.com/u/Amp_Mechanic_JB)\
**Post date:** [January 16, 2023, 5:16am UTC](https://forum.arcdroidcnc.com/t/height-control-plasma/870/4 "2023-01-16T05:16:33Z")

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It works depending on your expectations, I use it for most cuts if the material is uneven. Most people I’ve helped have it up and running but I have yet for it to be completely consistent. It does work a bit better on thicker material, like 12ga and up. Even with my own divided voltage board, settings and a good TH value capture, sometimes it will want to bob and it does affect cut quality.

I have a more invasive solution in the works but I’m not sure if it will be practical for most people to do.