My, 2 cents. I just studied all the "turnkey" systems out there that are sold to civilians and came to the conclusion that they're just silly on the pricing for what you get. I too wanted THC and it could have been as much as a 3K option on units like the PlasmaCam. I encourage anyone that is considering building or engineering their own table and controls to visit PrecisionPlasma.com and look at the tables available and then visit CandCNC.com to see what available. I purchased systems from both (4x8 Patriot table) and (Bladerunner DragonCut 620-5) and coupled with a HT PowerMax 65 all in it cost me about 13K - plus I got the HD bridge gantry and plate marker too. The system is strong enough for carrying and working a router yet light enough to really move when needed for plasma, I'm very happy so far.

I can't really comment on whether THC is needed or not - I wanted it simply because of some of the concerns stated here and elsewhere. But, I can tell you, it adds a level of complication and concern that is not for the weak at heart. You can get in trouble in an instant when the torch plunges into your material, bends the sheet stock (it's that strong) and then drags everything around - you can't hit the E-stop fast enough. Ask me how I know. But . . . . when it's dialed in - it's beauty in motion.

All the best, Don