How old is your copy of LCNC? I just ran your code on my plasma and it
ran smoothly with no detectable hesitation on the transitions between arcs.
Les
On 10/01/2022 12:08, Robin Szemeti via Emc-users wrote:
I've not built any plasmas in years :) I eventually got out of building
those and bought myself a couple of big Trumpf lasers ...
I do notice problems with the TP in the version of LCNC I run on the
router, when cutting at slow speeds, you can't really notice it, but at
medium speeds say, 3 or 4m a minute, I see them ... my software splits the
arcs into quadrants, and I do tend to see a stop on at least one of the
quadrants ... it will slow to a stop, cause a cutter burn on the part and
then continue on.
My header and cut for a simple circle, with entry at roughly 12 oclock
looks looks something like:
%
N10 G21 G40 G49
N20 G64 P0.05
N30 G17
N40 M8
N50 G53 G0 Z0.00
N60 G53 G0 X0.00 Y0.00
N70 ( Load tool End Mill {12 mm})
N80 M6 T1
N90 G43 H1
N100 G54
N110 G0X0.000 Y0.000 S18000 M3
N120 G4 P5.0
N130 G0 Z21.000
N140 (Profile 1)
N150 G0X500.000Y706.000Z16.000
N160 G1Z0.000F900.0
N170 G3X294.000Y500.000I0.000J-206.000F5000.0
N180 G3X500.000Y294.000I206.000J0.000
N190 G3X706.000Y500.000I0.000J206.000
N200 G3X500.000Y706.000I-206.000J0.000
N210 G0Z16.000
N220 M5
N230 M9
N240 G53 G0 Z0.00
N250 G0X0.000Y0.000
N260 G53 G0 X0.00 Y0.00
N270 M2
%
On Mon, 10 Jan 2022 at 11:41, Les Newell <les.new...@fastmail.co.uk> wrote:
The TP has improved a lot in the last few years. My plasma runs on
LinuxCNC and it's pretty smooth even on thin materials.
HF is nasty. It gets into everything. If you can afford them, Hypertherm
cutters use blow back ignition so no HF. They are very popular on CNC
plasma for this reason.
Les
On 08/01/2022 12:32, Robin Szemeti via Emc-users wrote:
I built a few plasmas with EMC, the trajectory planner was a problem at
the
time with it not being able to smoothly keep going between IJ arcs. This
can cause problems in thin sheet ... maybe it is better now.
I always had trouble keeping the HF from the arc start out of the
electronics.
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