Crack Fix | Sheetcam Hot

: Cracks often occur at the "crater" where a cut ends. You can set a rule to turn off the torch or adjust the height slightly before the end of the cut to minimize thermal shock. Preventing Cracking in Fabrication

In thick plate (1" or more), this is catastrophic. The crack is often followed by a loud "ping" and a visible gap of 1/16" or more. sheetcam hot crack

A user on the CNCZone forums reported that every 1" AR500 wear plate he cut cracked exactly 2" from the lead-in. He blamed SheetCam. : Cracks often occur at the "crater" where a cut ends

Essentially, your toolpath is "cracking" the integrity of the part because the physics of the cut weren't accounted for in the CAM software. sheetcam hot crack