Bob's Plasmac Build
tommylight wrote: Bob, I think I already mentioned it here somewhere, the client I built the rotaray plasma ( links to YouTube videos in the show your stuff section of this forum ) requested a 6X2meter cut area so I do have to leave some room and that makes it at least 7X2.5 meters. Chasing unicorns, or 7m rails !!!
Rod, I would highly suggest not using the spindle on directly wired to a plasma cutter, I am sure it is OK in most cases but I have seen a fair share of manufacturing cost cuts in all sorts of equipment.
Oh and Bob, you've been holding on us, what is that on the monitor? A new screen, or did I miss something somewhere???
Thats Silverdragon under gscreen. It’s badass perfect.
rodw wrote: Looks good Bob. I wonder if its worth going with opto isolated relays rather than mechanical ones? I used the ones you have there and replaced most of them when I added ohmic sensing (becasue I had to by a pack of 5). The only one left disables the stepper drives on estop (Just becasue I've been lazy but I have the part here.).
The 7i77 has opto couplers on them why would you need opto isolated relays?
I just got an isolated power supply for the ohmic stuff.
rodw wrote: Bob, looks good. So you are using the 7i77?
Whats a good sized 24V power supply for the Mesa card in your experience? I know I'm way over the top there.
Depends on how many relays and inputs but I always use a 2 amp 24vdc and never had an issue.
Need some ridge welding work to stiffen them up but turned out ok. Video of cutting it on my VMC.
Yeah yeah I know. Lots of chatter, but I am cutting 18" and only holding by 6" vise.....lol mill me some slack....lol