My Newb Plasma Table Attempted Build

It's the same model. The user manual that came with it didn't go that thin. So do you think cutting too slow may be the issue?

Ok so a level no-THC long cut, then ramped with THC both ways (and figure out halscope for it). I'll get on it in the morning.

This is an oldie (pre-plasmac) but a goodie showing volts at the start of a cut (in red) and when the THC goes active (in blue)



So if you do not wait long enough to sample the volts, you will sample in that piercing peak area. Then the THC decides it need to get back up to the sampled volts so eventually it is too high to sustain an aec. Hope this helps.

Set the delay time to be 1.5 seconds and see how you go. the two plasma boxes and different material (up to 16mm) I have played with did not seem to ever need a longer delay but in thin stuff, you might be able to sample at 0.5 seconds.

rodw wrote:

Until you get the hang of halscope, just set it to normal and roll up the top right. Also you have to scale things right or they will be to big to fit on the screen. Start with the vertical scale to be 50/div so to vertical lines will be 100 volts. Sometimes 20/div will also fit in. as far as the horizontal goes, 200 ms/div is a good setting.

Hi Rod. Thanks a lot for the info. I'm getting ready to run those test cuts that Phil asked for. Question. THC active signal only goes to vertical 5/div and led-down. Where should I set those in halscope?

dvn4life1972 wrote:

Hi Rod. Thanks a lot for the info. I'm getting ready to run those test cuts that Phil asked for. Question. THC active signal only goes to vertical 5/div and led-down. Where should I set those in halscope?

Some signals are either on or off so they show up in halscope as 0 or 1. So thc active will be 0 to start with and go to 1 when it turns on (After 1.5 sec delay)

Ok I'll give it a go next cut. I changed to FineCut consumbales and I just ran a test cut. Wow the Hypertherm charts are pretty much useless from what I'm seeing with these.