You Big Dummy! (Fred G. Sanford)

[ChelanJim]

Here are two solutions for grounding/isolation of the table:

Solving Crossfire Pro CUT60 EMI and Ground Loop issues once and for all

I have been chasing EMI and ground loop issues on my Crossfire Pro with Primeweld CUT60 for years. To be clear, I do not believe this is a Langmuir problem, the Primeweld CUT60 is known to be a noisy girl and was removed from their recommendations list. But that said, the Crossfire Pro electronics were not designed to have robust protection against such cutters that throw off a lot of noise. What were my symptoms? The most common was simply disconnections to the electronics during a cut. But it…

Grounding interference solved!.....I wish

Drive a 8ft copper ground rod into the earth. Connect all motors with 12Gauge wire or copper braided wire to ground bar. Connect positive work piece lead to ground bar. Every thing BUT the Langmuir box and your computer. ENSURE YOUR COMPUTER AND LANGMUIR CONTROL BOX HAVE NO CONTINUITY AT ALL TO THE TABLE FRAME AND MOTORS. Take multi meter from table to outside shield on printer cable from laptop. EMAIL ME IF YOU NEED HELP. YOUR PROBLEM WILL BE GONE FOREVER… Do not try to use grounding sys…