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Hello, I have built a new plasma cutting table. I am working with Linuxccnc 2.9, Qtplasmac, and an LPT board. A problem has arisen: the torch touches the metal on the floating platform, the sensor is triggered, the Z value on the DRO suddenly changes by 100+, the machine goes into an emergency due to exceeding the Z‑axis limit, then the Z‑axis moves away and the readings return to normal. Please help me solve this problem.

Hello all.

Just thought I'd share this little app I had ChatGPT write for me.  In a nutshell - it generates GCode for side operations on a standing cylinder using a lollipop style of cutter when you don't have a rotary axis available.  It's fairly limited in scope, but may prove useful from time to time.  True G2/G3 helices too.  I'll add some more features as and when.

groovecam.smallscalecnc.co.uk

Yes, I tested it and it works fine.
Thanks for reporting the issue.

nice, it's time to build an addon board with IO's

It all working now. Have to change tri-state block in vivad. Will be update on cloud project Vivado and so on

This should be fixed in master now.
Another Dev figured it out quick!

If the driver does not find a Sserial remote, it reverts the pins to GPIO
so that's expected if there is no remote connected/discovered.

Hi, kind of a late message but I am in the process of retrofitting an old hydraulic press brake. Currently, I'm looking to buy a hydraulic proportional valve for the cylinder. Do you have any tips for this purchase? I really appreciate any advice. I am a bit intimidated by this project.

I've gone through the parity options before but Its been a while

That said, I have not seen  any other parity complaints,

I can try and duplicate this sometime this week but I think it's something more basic.

Edit:

Just tried the GS10 at 8E1 (still 38400 baud) and it works as expected on master.
 

Ok for the stop bits, what about the parity ?

Unlikely, The V2 firmware does not support 2 stop bits and it runs the same
(the driver complains that it cannot set 2 stop bits so drops back to 1 stop bit)

I can try the same setup with 1 stop bit but I doubt that's the issue

Alright, fair enough. I've already purchased a separate supply and a PWM to analog converter. I'll just use the pot on the board to make it send out a max of 7 volts and use the basic stepconf to set up the spindle RPM.

Hello,
I just checked your zip and the only real difference is you use 8N2, I need 8E1 (and 38400 vs 19200bps).
Could that be the problem ?

Thanks !

Logthor wrote:

So I need a separate power supply for this converter? 

If a device is not isolated from the power grid, it may cause fatal shock, damage to the electronics or its incorrect operation.
What's worse, it all depends on which wire you connect where.
The machine can operate safely and without failure for years, and when connected to another wall socket, it may burn itself or kill the operator.
To prevent this from happening, all you need to do is spend a few dollars more on an already expensive machine.
I really don't know what to discuss here...

Understood, apologies for hijacking.

Kind Rgds.
George