Cutting issue

I'm also curious what kind of plasma cutter you are using?

phillc54 wrote:

Can you post the gcode file that exhibits this issue.

Here is two, they all do it.....Using sheetcam and the latest PP posted by Les in here.
 

snowgoer540 wrote:

I'm also curious what kind of plasma cutter you are using?

It's a Prime Cut 60
 

 

Has increasing the arc_ok delay helped?

The fact that ignoring the Arc Ok causes it to work is telling.  It tells me that there's something going on with that circuit, be it with "bounce" noise in the software, or with the physical circuit.  

If increasing the arc_ok delay does not help, there is a section in the docs about contact load, which may help you as well.

Edit:   linuxcnc.org/docs/devel/html/plasma/qtpl...html#qt-contact-load

arc_ok delay did not solve it.....same thing first pierce perfect, second pierce error & pause.
WIll check out the docs....it works fine with ignore ok checked, but from what i read this also disables my THC?

Is there any difference if you change the "pe" value to 0.0
From:
To:
 

phillc54 wrote:

Is there any difference if you change the "pe" value to 0.0
From:

Code:

(o=0, ph=0.12, pd=0.2, ch=0.06, fr=100, th=1, cv=99, pe=0.2, jh=0, jd=0) To: [code](o=0, ph=0.12, pd=0.2, ch=0.06, fr=100, th=1, cv=99, pe=0.0, jh=0, jd=0)    

[/code]
 

Where would i do this?

UncleRemus wrote:

phillc54 wrote:

Is there any difference if you change the "pe" value to 0.0
From:

Code:

(o=0, ph=0.12, pd=0.2, ch=0.06, fr=100, th=1, cv=99, pe=0.2, jh=0, jd=0)

[/code]

To:
[code](o=0, ph=0.12, pd=0.2, ch=0.06, fr=100, th=1, cv=99, pe=0.0, jh=0, jd=0)

Where would i do this at?

Edit the gcode file, it is around 20 lines from the top.

One other thing that I see is that you are using really long lead ins and lead outs.  The lead outs especially will be a problem because they require cutting over either something that was almost certainly already cut, or a bit of material that will have dropped out.  For the gorilla file, a lot of the lead ins and lead outs get really close to a cut line for another part.  And there are some lead ins and lead outs that overlap each other.

Changed the gcode and still the same.