PTM-60 Machine Torch:
I chose to suspend the Coax from the ceiling above dead-center of the table. This seems to work out very well. Z-Axis umbilical will remain on the OEM swing-arm suspension.
Forgive me if I’m being naive, but this whole saga about a floating z axis on the OG crossfire, why not just buy the pro?
You got serious skills, don’t get me wrong? But was this all for the challenge and experience? If so, congrats. Or was it a matter of waiting for the pro to ship? Just seems like a lot of time and money invested in something LS already did for us.
And yes, I say this after a ruined night of cutting thanks to a dirty z axis. Lol.
I’m betting on space constraints.
Short answer: @Keith1 is EXACTLY right!
Long Version: The original plan was to go for the Pro and I was on that path. Then, I woke up one morning and laid out some stuff in the area it would occupy and reality check, I just could not tie up so much space in the workshop. Over breakfast, I brought up the conversation of extending the workshop 10 feet, what a Pandora’s box that opened. 
I bought this machine as its a workable size for me and was immediately available. Once I got it and realized the amazing capability, and saw what others were doing, the geek factor kicked-in and I just had to trick it out! 
Footnote: The lead-time would have also drove me insane 
That’s my limit. I can just fit the 2x2 in my workshop (without giving up precious space used by something else). Besides, DIY you have control of the outcome. Buy an existing you’re pretty much stuck with their idea on how it should be done.
So, I think I maybe on to a “eureka moment” here!
Looking at the THC3T Divider board, I notice that the raw arc first goes through two 100k resistors (one on each leg). Looking at the CUT60 Schematic, I note that the raw arc from the cutter first goes through two 100k resistors before going to the output “aircraft” connector at the back. Hmmmm, that’s twice the resistance. So I just jumpered the two resistors on the board and low and behold I’m seeing more reasonable voltages on the display, like P0110V and this is with the machine set to 30A and with pilot arc engaged only.
UPDATE:
AWESOME! I did the setup and ran it, on first try the torch moved the opposite direction. Went into the TH3T setup and selected reverse response. Ran it again on some warped 16uage steel and the torch followed the contour precisely! …the sweet, sweet taste of SUCCESS! 
Hey Tom, need to verify my setup concept here;
Each time I change cutting current (as for various material types/thicknesses), I need to check the minimum and maximum voltages (Pvolts), during pilot arc (at that current setting), find the mean and set that value with the pot in mode U? …Am I getting this right?
The things affecting your voltage setting (at the target cutting height) are:
Material,
Current,
Tip Diameter,
Cutting speed (vector speed).
Of course, there is also the ‘openess’ of the material (did you just cut out a piece that’s 1/8" separated from the cutout you’re now cutting)… The above parameters assume you have some ‘meat’ at the point of your arc.
In general, whenever I’m cutting something that I don’t have data on, I will disable THC (by setting reaction time to 9.9 seconds**) and simply cut a straight line with the Z fixed at my target cut height and watch P or even the main display (it shows the same thing). Then I record the value in a little notebook that is always at the ready near the table.
** I’ve considered setting U to a very high value ie >150 as a means to disable the THC, but haven’t tried that yet. Probably won’t ever get around to it 
And before you ask, here are my THC03T-02 settings:
A: 20
S: 50
D: 8
V: 10
1 Like
Great! Thanks! Food for thought. Will get up early and run some sample cuts.
Ah. Space makes sense.
My daughter is in the PR and Marketing business and she was over last night for dinner and saw it work. I had made a name sign for her out of 16guage galv steel. So lots of commercial ideas flowing. She may just convince her mom to let me extend the workshop and get a bigger table if the prospects pan out 
Get that work clamp off the table or slats and put in on the work piece, please. That will cause bad cuts as well as false reading for your THC.
What font is that? It stitches together nicely or did you massage it?
https://www.dafont.com/billion-dreams.font
Required very little massaging. I’m no artist, so I’m always searching for fonts that will not need much work.
1 Like
Copy that on the work clamp George, thanks.
She may just convince her mom to let me extend the workshop and get a bigger table if the prospects pan out 
This is dangerous ground…daughter involved could be helpful…
I can see both my daughters rushing to get out the door if they found they would be in the middle of “Dad enlarging the Worrkshop” discussion!
Hahaha, well there is dialogue on the subject now. If we were to go that route, I would most likely be looking at building my own machine and something that could run a full 4x8 sheet.