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- #WHAT IS SOFTPIERCE PERCENTAGE IN SHEETCAM HOW TO#
- #WHAT IS SOFTPIERCE PERCENTAGE IN SHEETCAM SERIAL#
- #WHAT IS SOFTPIERCE PERCENTAGE IN SHEETCAM CODE#
Then if you run the macro it will run the Outside profile without cutting(torch off).
#WHAT IS SOFTPIERCE PERCENTAGE IN SHEETCAM CODE#
If you use Sheetcam the post can be modified to add code to do this, OR you can add it yourself. I have a routine that can run the outside profile for plasma cutting. You can also program it to run the outside profile to verify (cold run) it fits the material. You can also have Mach3 run the extents to verify it stays on the material/table before you cut. (Yes that is easy to say( -), but also easy to do. So there is really no excuse for running off the material or table when cutting. When you load a program to CUT you should KNOW if the cut would run off the material or table by the extents of the position values in the Gcode. Now to be honest on the plasma (stepper driven I do not use homes or limits for the XY and ONLY the home on Z to set TOM (top of material). It is the backing UP that sets the home position. So the speed it drives into the switch is errelivant. THAT is the home point for mach3 the reclosed point of the switch. It then stops and BACKS up until the switch is remade(closed). Then at the intermediate point it switches to the % of Rapid speed until it trips(Opens) the switch.
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Note : You can turn off the intermediate point if you want to. When homing the G28.1 send the axis to the intermediate point(X12) at the current feedrate,what ever it is at that point. Homing uses a Set % of the max axis velocity(Rapid speed) NOT the Current feedrate. HIYA Keith I believe you have misunderstood some technical terms. Sorry Terry but I'm just trying to get to the bottom of the rabbit hole, it gets to me when I don't understand something like this. So in summary I guess what I'm asking is: does a G0 command set the current feedrate to the rapid speed until a Fxxx command is given. If that's the case then that means every touch off is done at a % of rapid speed because there's always a rapid to the next pierce point and the G28.1 command even rapids down to 15mm (in my case) before going at the % homing speed.
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There are some G0 commands before the touch off so does Mach use this as the current feedrate (my rapid speed)and do the first touch off at 20% of my rapid speed. Now I'm wondering what speed my FIRST touch off is homing at because the only feedrate command that has been given in my gcode is F1 in the opening lines (and my first touch off is NOT done at 20% of 1 mm/min LOL). on/off) ctrl:AppendText(Adds options for SOFT PIERCE, MIN CUT LENGTH.
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I'll do away with that setting in my Sheetcam post processor so the F500 isn't in the line of code anymore. If the value can be set in SheetCAM it is in the UNITS (MM or Inches) you have. All this time I've thought my Z was homing at 500 mm/min, when in fact it's been homing at 20% of whatever the current feedrate is at the time. I mainly wanted to understand all of this though. Might be more of an issue with accurate milling jobs. Suppose it's not enough to worry about with Z homing for plasma though though. Also though I've always heard that homing too fast can cause innacuracies.
#WHAT IS SOFTPIERCE PERCENTAGE IN SHEETCAM HOW TO#
My tech team is drilled on the proper methods of cutting and how to get the best results.For accuracy I have my switch mounted perpendicular to the part of the floating Z that operates it so any overshoot could potentially smash it. If you want to modify and distribute a Post to do that then please be prepared to support it. I am sorry but I cannot release a POST that I then have to support and maintain that is contrary to doing proper plasma cutting. If you did the pierces at one current setting and plunge rate versus the other it MIGHT help, but then again so does having control of the cut current dynamically and altering the pierce process in real time. What destroys consumables is piercing no matter when its done. Pre-piercing holes does nothing to increase consumable life or improve the cuts. "Once again this is forcing the plasma to do things that make little sense. Users report they double their consumables life on cutting 1/4" and thicker material." The concept is to get a more controlled pierce and prevent the consumable killing back splash. It automatically lowers the Z plunge rate too.
#WHAT IS SOFTPIERCE PERCENTAGE IN SHEETCAM SERIAL#
On thicker material the BEST solution is to have the RS485 serial port on a Hypertherm and use the "Soft Pierce" option in SheetCAM (using our POST) and set a % of the full cut current to start the pierce. I have used all the way down to 16 ga without piercing completely through. For pecking drill spots we have the Peck pierce option that can be used to change the pierce characteristics and just make divots. The whole pierce process on thick metal is to prevent blowback that kills consumables. "I pointed out that the idea of pre-piercing is not a valid method of doing plasma cutting.