Re: [CAD_CAM_EDM_DRO] Re edm software

Alfewerken
If this is any help for those on this thread...
I think he wanted to say (excuse me for butting in...)
the CNC software he has does not 'servo' (in EDM terms)
his CNC software merely has a feedrate.
It is possible to run EDM and use a feedrate, but it is very inefficient.
Feedrates are not good for EDM. EDM is a dynamic process that envelopes
the CNC, not the other way around. If the CNC is in charge, the process will
suffer. The process has to be primary. The ideas like Lag are bad for EDM.
Merely stay on course, but the position on that course is entirely process
governed. Retraction along the course is common. The progress along the
course is more like a cha-cha than a feedrate.
So there is no way to determine the 'correct position' at the next time frame.
That's why Lag is irrelevant.
I know of no open source EDM CNC software. If you are capable of hacking the
segment que in EMC, I'd certainly be interested. I think others would be too.
For Wire EDM the approach is very different than for Senkung. I think it
would
be easiest to implement hole drilling ( single axis ) before 2, 4 or 5 axis
wire.
Once that was accomplished, Senkung would be next, then the additional
synchronous stuff in wire could be done.
regards,
TomP


--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.6.9 - Release Date: 1/6/05