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  • MrDe
  • MrDe
21 Dec 2024 16:00

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

Hey Scott,
Sorry to bug you again, but just wanted to let you know I finally managed to flash the firmware and ping 10.10.10.10! Next up is diving into the LinuxCNC side of things.

I’m planning to document everything I did to get it all working and might make a YouTube video showing the steps once my exams are out of the way next week. Also, I was thinking it’d be cool to contribute to the project documentation if there’s any way I can help out.


Thanks again for all your help – really appreciate it!
  • CopperHead
  • CopperHead
21 Dec 2024 15:36
Slag on tight corners was created by CopperHead

Slag on tight corners

Category: Plasmac

Id like to reduce the amount of slag I'm getting on tight corners, I've searched the forum for settings on the THCAD2 and the 7i96s and really haven't found anything related to it. longer cuts and or curves come out perfect its just tight cutbacks it leaves a pile of slag. I'm cutting 12ga Steel and reduced my speed from 120 to 100 for the 12ga settings. So I'm not sure if I'm getting the height control locking at at the right time or its something else. my air quality is consistent and I run a refrigerated drier so I know my air is clean. I did change the Post processor to one of the Updated ones here called Plasmac local materials for setting the material from plasmac instead of sheetcam. it improved quite a few items during cuts. Maybe my motors and drivers aren't tuned correctly? open to anything to reduce the amount of cleanup I have to do after the cuts lol. and i might have left out some speciffics needed so ask away.
  • JR1050
  • JR1050's Avatar
21 Dec 2024 15:35
Yaskawa encoder hack was created by JR1050

Yaskawa encoder hack

Category: Driver Boards

  Hello there. I have a couple of mills with Yaskawa servo systems, mid 1990 BE series analog drives. They are junk, constantly blow up, very little info available, only support from Yaskawa, send us your life savings, in my case about $5 , so not enuff anyway.Using another brand of drive should be doable, the wrinkle here is Yaskawa’s unknown initial magnet sensing. The motors are sinisudialy communtated, sorry for the misspelling. The oldest ac yaz motors used what I suspect is a coded type hall sensing for initial trapezoidal communtation. The output signals were v,-v,u,-u,w,-w. , output from the encoder to the drive.The new motors have the markings on the encoder for the added signals, they are unused. I suspect the circuitry is there. Both encoders have on the glass disk , an inner ring of what I guess could be grey code. See pictures.Does anyone recognize this and have a hypothesis about how these signals would work? My guess is they are similar to the red cap Fanuc bldc signals. I have not put a scope on them  



 
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