PlasmaC torch starting problem (Solved with help from the famous three)

Clive S wrote: I think this topic can be marked as solved :woohoo:

That has to be done by you, by editing the original post.

tommylight wrote: I am very glad it works, i hate that i can not just jump there and help.
P.S.
Why is there a hole inside a hole ?

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Ha. yes the piece was just a test cut and I want to measure the hole. so no reason apart from the extra cut.

Re the over size and under size is that a kerf param?. to change. the gantry travels the correct distance over 1200mm

Re kerf, i never use it so i am not the best info source for that.
On 99.999999999% of what i deal with is cutting 3mm thick plates with decor, so a mm here or there is not important, and the only correction i do is add 3mm to outside dimensions to compensate the cut. That usually lands in the 0.2 to 0.4mm tolerance, as the kerf width depends heavily on the speed and current and thickness and humidity and ......

Edit: Phil will using this method effect the THC ?

It has no effect on THS (EDIT: or THC for that matter), it is just a different method to get the Arc OK signal.

Re the over size and under size is that a kerf param?. to change. the gantry travels the correct distance over 1200mm

It would only be kerf if you used G41.1 or G42.1 in the GCode. When you drew the part did you have the torch on the right side of the cut.



@Tom. That reed switch is a great idea Tom. I think it might be worth adding to the appendix of the PlasmaC doc.

It would only be kerf if you used G41.1 or G42.1 in the GCode. When you drew the part did you have the torch on the right side of the cut.

That part was drawn as a DXF and passed to sheetcam outside cut clockwise inside cut anti clockwise. First time using sheetcam
using the PP from Rod I think.
So I will check the code in the morning.
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Phil I would like to thank you for the tremendous help you have given me throughout this trauma.
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The magnificent 3 has got me through this.
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Now to try and sort out the following errors that I keep getting.. New post

Glad you are up and running Clive. Now for the fine tuning...