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by er85
Fri Nov 11, 2016 9:46 pm
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 326629

Re: LinuxCNC

It feels like I've tried everything I can with what I have right now. I made a simple LC-filter (100µH / 470µC) for the Pi and PICnc and also put a cap on the PICnc supply pins. Then I put everything inside a computer case, but no improvements. Maybe I'll have to start looking at using a PC for this...
by er85
Fri Nov 11, 2016 9:24 am
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 326629

Re: LinuxCNC

I tried that with no success. I also tried taking out the Pi and PICnc from the cabinet, disconnect the printer cable, HDMI, relay board and run through Xming on my laptop but it still resets.. I guess next I'll have to try putting them in a metal box connected to earth and maybe a better 5V source....
by er85
Thu Nov 10, 2016 6:10 pm
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 326629

Re: LinuxCNC

I tried that now and even when I disconnect the LPT-cable completely it resets which probably points to something with the power supply then maybe? The strange thing is that the RPi2 is perfectly fine.. never rebooted or anything. Looks like a mess right now but here's the cabinet and machine: IMG_2...
by er85
Thu Nov 10, 2016 4:13 pm
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 326629

Re: LinuxCNC

Hi, my plasma cutter is pretty much up and ready to run now but some serious noise issues are keeping me back. As soon as the torch lights up PICnc is reset (have to close Axis to turn off the torch too) and it looks like everything is triggered, joint follow errors and so on. Cables for home switch...
by er85
Mon Aug 10, 2015 7:21 am
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 326629

Re: LinuxCNC

It wasn't easy but finally I got the PICnc board running! And now I'm almost finished programming the basics of the plasma control unit including HAL-driver and it seems to work pretty well. It reads signals with 100hz but up to 500hz or so should be possible at 115200bps. Just a tip: I use XMing to...
by er85
Thu Aug 06, 2015 2:29 am
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 326629

Re: LinuxCNC

I need to home the X-motors individually. I think I will solve this I/O-problem by mounting an external board like an Arduino in the plasma cutting unit to handle signals over a USB serial port as these should not require the same accuracy as stepping signals. Then the I/O's should be enough for a 5...
by er85
Tue Aug 04, 2015 4:06 am
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 326629

Re: LinuxCNC

Nice work. I need 4 axis (X1, X2, Y, Z) and inputs from a torch height controller for a plasma cutter. I think I miss 3 inputs but I have plans to extend it with a rotating axle in the future.
by er85
Tue Aug 04, 2015 1:06 am
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 326629

Re: LinuxCNC

Do you think it be would possible somehow to use two PICnc V2 on an RPi2? I need more I/O so that would be really nice if it worked. It should be possible right? But how much change in code is needed? Would be cool if they could be run on the same SPI port too. I will probably recieve components for...

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