Optimizing SheetCam Parameters to Mitigate Hot Cracking in CNC Thermal Cutting
Ensure your Tool Library in SheetCam is calibrated to your plasma cutter’s manual. You want the fastest travel speed possible that still maintains a clean cut. The faster the torch moves, the narrower the HAZ and the less time the metal spends in that "danger zone" where cracking occurs. Material Considerations sheetcam hot crack
Limitations and cautions
SheetCam is considered a low-cost professional tool. A perpetual license typically costs around (or approximately €239 depending on the vendor). Sheetcam license or alternative - Problems and questions Optimizing SheetCam Parameters to Mitigate Hot Cracking in
A hot crack is often a velocity issue. If your machine is set to decelerate abruptly into a corner, the plasma arc continues at full power while the movement slows down. This is the recipe for a blowout. If your machine is set to decelerate abruptly
: Improper torch height can cause excessive heat buildup. SheetCam includes "Cut Rules" to disable THC during tight corners or lead-ins, preventing "torch dives" that could damage the material or cause thermal stress leading to cracks.