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Here is the program that is called for touchplate:
github.com/LinuxCNC/linuxcnc/blob/2.9/li...uchoff_subprogram.py

It's python code, but I think if you know gcode you could understand it.
Can you see what needs to be changed for your request? 

lemontart is a new CNC project I started on a whim last week and it all fell into place and the first one is hopefully being made NEXT week. That escalated quickly. EEK! I can't share a lot of final details just yet, but I can share the premise.

 

- lemontart is an OPEN SOURCE machine frame design/platform.
- machine kits will be available via miniMonster, but the cad files themselves will be GPL (or equivalent) so you could go about making your own any way you like.
- much like linuxcnc there will be a "main" build, and encouragement for people to make mods and accessories and share them.
- the design I see as a continuation of where the old xzero machines we meant to go before George got sick, but keeping a focus more on wood, vs metal like sorotec went with theirs.
- the first machine is the 57, which is 500mm x 700mm travel and geared heavily toward guitar making. Mainly hardwoods, plastics and light aluminium and brass work. It weighs about 240lbs as a frame, and the better part of 300 lbs built up, so its not shapeoko/altmill class (but also not miniMonster high precision class).
- the price of the kits will be VERY accessible especially relative to their performance.
- the kits will be 100% self assembly. literally a box with every single individual part, plus some special "tools" to make the job easier.
- the kits will come with basically every single parts except electrical. so you need to add a spindle, 60mm servos, wiring, electrical cabinet and a control
- I will be making video instructions on assembly to guide people though step by step, it should take an adept person a day or so to build.

So once these are out and selling/file available I want to work on a matching control and linuxcnc with ethercat is the obvious choice.

What we will need is:
- a nice UI that is preconfigured correctly for the machine/servos/vfd etc. it's own ISO perhaps? Stick the usb drive in, install, select a few options, run. a cosmetic skinning of qtdragon would be a great starting point here.
- jerk control. yup. Been tried so many time, soooo clooose..... but not there yet.

What I want to do is put a bounty on jerk control. I will pay the person that completes implementation of jerk control in a "finished" manner one lemontart machine kit. I don't care if its porting tormach's version, working on grotius's version, or from scratch. It just needs to be done and 100% bulletproof working. As I have said before so many times, it is mostly critical for G61 exact stop moves, and we should not get sidetracked by G64 smoothing things as they already have a degree of their own jerk limiting and linuxcnc's planner (especcially if the new tormach stuff is added) already performs very well (and more than good enough for lemontart).We just don't want the poor thing to shake down the building at 0.5g.

Probably wont be ready for the control phase til early next year, but if these things are in your wheelhouse chime in and give it some thought. 

 

I did a nother check in my BIOS and maybe i did annother improvement.
The ping performance looks mutch better then before.

Maybe this could solve the problem.
Fingers crossed...
Jens

 

I get 83 errors when I shut down linuxcnc, but they reset when it turn it back on. So a non issue, although would be good to know the why and fix it.

Also not I have not yet set up the IO on the drives.

Hey Tommy,

many thanks for your support.
At the moment i would like trying to solve it at this configuration.
The last 3 days i installed everything new (serveral times). with Probe basic, IRQ-Optimization, automatic tool probe.
At the moment everything works very well, only thisone problem.

Is there no way just use another driver or kernel?

Here some infos from ethtool.
Maybe there ist something, that could fix the problem.
 

Pulse generators are easy now, well not like piece of cake, but much easier than discreet stuff back in my days.
As far as i can recall it should have:
-adjustable voltage
-adjustable current
-adjustable ON/OFF time or PWM
-current feedback and limiting
-adjustable PWM frequency
All those can be easily done with any microcontroller, but might need better ADC converters.
Adding an output to it for sending signal to controller when short circuit occurs so the controller can back off should also be a couple lines of code.

If you do not need the latest features, you would probably be much better off by using the 2.8.4 ISO of LinuxCNC, and it is very easy to test if that works for you if you already have a working config:
-download 2.8.4 ISO from the downloads page
-burn to a USB
-boot the PC from said USB - do NOT install
-use file explorer to find the config on the internal drive
-make a copy of the configs folder to be safe
-open the copy of the config folder
-find the file that ends up in .ini
-right click on it, select open with
-near the bottom click on "use custom command" or similar
-type linuxcnc
-enter
That should run the machine as usual so you can check if it drops the link or errors out.
If that is successful you can install on internal hard drive.

Hello,

there are already some threads about this, but most of them never continued the topic or vanished. So I wanted to start another (that hopefully not has the same fate). The topic would be homemade sinker edm machine with a pulse generator. Is it possible? I just had some thoughts:

- Using the pulse generator based on Ben Flemings book (Build a pulse edm machine), but replace all the knobs and pots (if possible have not checked yet) with software and/or relais and control them via a gui.

- For simple jobs use a G1 Z-??? F??? and then somehow measure the spark gap and use motion.adaptive-feed to adjust it. The feedrate could be trial & error. Add a timer that every x seconds sets motion.adaptive-feed to -1 (or more than 1, have not tested that function yet) to lift the ram up and flush. Then use the spark gap value again to move down.

- With a XYZ(C) machine maybe even orbiting the electrode?

- Has anyone here build the Ben Fleming pulse generator?

Just trying to gather information before jumping deeper into this topic.

Thank you.

OK, after 2 hours of testing, the error appeares again...
Someone who can help me..

Best regards
Jens

I'd thought I'd add samba and windows can be a PITA to setup.
As the underlying OS is Debian bookworm, any guides or how-tos that cover installing samba on Debian will be far far better than asking here.
I would also install gvfs-backends and gvfs-fuse as well. Samba-vfs-modules might be an idea as well.

You only need the Ethercat repos if you are going to use Ethercat .
Debian sources
gist.github.com/hakerdefo/5e1f51fa93ff37871b9ff738b05ba30f

Installing samba
serverspace.io/support/help/configuring-samba-on-debian/

Thank you for the link.

I set up the software limits and homes. I assumed the hardware limits wouldn’t be necessary to get it running.

What I don’t understand at this point is how I get the gantry, which is currently at the midway point of the machine, 24” from the desired home location, jogged to the home location, in this software, so I *can* home it. I don’t see how wiring in the physical switches allows me to do that.

Hopefully the docs will get me there. Thanks.

Thanks. I’ll order the switches.

Having a blast is not my goal here. I need a working tool.

To be clear, when I set up the limit switches the software will treat the two Y motors as one? Currently they are being treated as separate axes, which makes it impossible to move the gantry to a home position.