If a sensor never stops the down motion, mach will try to complete the down motion to whatever Z level it was instructed to move to (by sheetcam) When it's time to start a cut, sheetcam drives the torch downward (how far I don't know, but there should be a setting to limit the minimum Z to stop short of the table bed, either in mach or sheetcam)ĭuring that move, the THC (or separate contact sensor) watches for contact, upon contact, the THC triggers mach to stop driving downward, If that moves in the right direction, that's good Lines enclosed in parenthesis are comments, so you don't type those in, but they can be in a tap file Then you can type the gcode instructions into mach, or put them in a tap file Thought it's supposed to sense the top of the metal that way then raise to pierce height? I hope this is just some settings I haven't found yet. Also don't know why, when the switch is activated on the Z that the torch is still trying to drop more. I'm thinking Sheetcam since I can't even get the simulation to run properly. Very confused, don't know if this is being caused by Sheetcam or Mach3. I've tried with THC on and off, and have it set that THC isn't on automatically. tap file into Mach, the torch drops hard, knocks the torch holder off, then takes off for the side of the table. In Sheetcam, if I run the simulation, all the tool paths are displayed etc, and when I run it, the torch just tracks off the table like it doesn't even know there is a job loaded. I home and zero all axis, then jog over to where I have a small piece of 14 gauge on the table, and zero there, and set a reference point.
#Mach 3 sheetcam code
I run the post, and then load the G code into Mach 3. The drawing I load shows on the material correctly.
![mach 3 sheetcam mach 3 sheetcam](https://image.slidesharecdn.com/tutorialsheetcam-150120185732-conversion-gate02/95/tutorial-sheet-cam-3-638.jpg)
![mach 3 sheetcam mach 3 sheetcam](https://i.ytimg.com/vi/WD5SZFlSy9o/maxresdefault.jpg)
![mach 3 sheetcam mach 3 sheetcam](https://docplayer.net/docs-images/65/53609178/images/10-0.jpg)
I set up sheetcam with the table dimensions, and the correct envelope size, loaded the correct tool, and operation. I can jog, have all the axis moving correct distances, the torch fires when I click the fire torch icon. I'm finally getting to the part where I'm trying to do a test cut but I'm stuck.