So I have ordered a TA211i, but there is one thing that bugs me about the unit. There is no gas solenoid for the tig side. Gotta use the hand valve to control gas on and off. It is not a huge issue I guess, but an annoyance and possible to drain a tank of Argon if you forget.
I am considering building an external gas solenoid box for it. I looked at the control logic for the remote control 8-pin connector. It looks like I could hijack the open/close switch in the torch or foot pedal and use it to control relays and the solenoid on my end. Send the signal into the machine from a relay in my box. It wouldnt be too difficult to even give it an adjustable post flow with an off delay relay controlling the solenoid. I guess it would require a bit more work to make it 2t/4t, but 2t only would be simple and non issue if using the pedal.
Is this something anyone has done before? It wouldn't require any modifications to the machine or torch. Just add in a short plug set in between the remote control and the machine. Could be made to work for any machine with remote control and no gas solenoid.