cutting in air

[RichardR]

Thanks, I have been looking G0 Z10 Z0 at a you tube review of Todd Flemings JS Cut, and realise that there is an adjustment that can be made to the plunge rate, I had my profile programme set really fast, so I am going to reset that and try it. If that fails then I will try your suggestion, I am very reluctant to alter my Mach3 settings as you know how long it took me to get to where I am. While I am writing, even though this may not be the right place to ask, I watched a JScut review with Todd Fleming where the programme showed more options for setting the job up. like width and settings for different type of cutting on the one job, which is not on the version that I get on the web browser, am I missing something? as looking at that version it will be much more versatile
How would I write or add to G0 Z10 Z0 to repeat a few hundred times without doing it manually, I have not got into writing G code as I just let JS cut do it for me :-)

[JAZZCNC]

How would I write or add to G0 Z10 Z0 to repeat a few hundred times without doing it manually, I have not got into writing G code as I just let JS cut do it for me :-)

Just use a text editor like Notepad and use copy n paste. To change for other axis just use the find n replace option ie: find Z and replace with X.

When writing the G-code you only need G0 Z-10 on the top line only because it's what's called a Modul command and the G0 which means travel at max velocity will stay in effect until another command comes along like G1, which is a commanded feedrate move.

So you can write it Like this, then just copy and paste the last 2 lines over and over, or if you're clever you'll do 10 or 20 lines then copy n paste those.
G0 Z-10
Z0
Z-10
Z0

[RichardR]

I would like to say Thank You to JAZZCNC for his help, the test programme showed a problem, with some odd noises and the Z crashing into the limit switch.
A really BIG thank you to Mike (Doddy) who after chatting with and suggesting to swap the leads at the back of the control unit so X was operating the Z axis the problem was cured, however not satisfied with just leaving it at that after several texts he advised me to set the step pulse and Dir pulse to 5, they were set at 1 also to slow the acceleration as it was a tad too fast, all this in the motor tuning within Mach 3, I swapped the Z and X leads back to where they should be and did several tests using my Vernier to measure the start and finish positions of the Z axis, which was good.
Today I did a job that took approximately 1.5 hours and it was perfect, so it looks as if the problem has been solved.
All I need to sort out now is a strange sort of squeaking noise on the X axis as it travels along, just started during the job I have just completed. it has always been lubricated at regular intervals with a silicone lubricating spray, (not WD40)