Sheetcam Hot Crack Extra Quality -

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

If you use SheetCam for plasma or laser cutting, you’ve likely experienced the frustration of a "hot crack." You load your DXF file, generate your toolpath, and everything looks good—until the machine actually starts cutting. Suddenly, the torch lingers too long in one spot, or the cut path logic seems to "break," resulting in a blown-out corner or a part that is ruined by excessive heat. sheetcam hot crack

For holes that need to be tapped later, SheetCam can perform a "drill routine" (piercing a pilot hole) first. This helps manage the hardened edge that occurs in steel, making subsequent machining easier and less prone to stress fractures. Physical Prevention Tips Ensure your Tool Library in SheetCam is calibrated

The simulation looked clean. Blue lines for the pierce, green for the cut, red for the lead-out. He hit "Post Process" and fed the G-code to the old Plasma table. The machine whirred to life. Material Considerations If you use SheetCam for plasma

He changed it to a 45-degree arc lead-in. Then he adjusted the "Overcut" distance. Then he changed the cutting direction from "Climb" to "Conventional" so the heat was thrown away from the finished edge.

To prevent heat-related issues, you can use several specialized operations and settings within the software: Peck Pierce for Accuracy : Instead of full penetration, use a Peck Pierce