: Use the free simulation tool devSim CNC Foam to watch the wire path. Look for areas where the wire might "dwell" too long, which creates heat-affected zones prone to cracking.
Adjust the curve value to zero if the slot is too narrow and heat is the issue. Long Cut Times Leading to Cracks Devfus foam crack
If you are deciding whether to purchase, here is what the software offers for RC model builders: Project Wizard : Use the free simulation tool devSim CNC
If your machine is taking too long to make a cut, the foam can weaken. Long Cut Times Leading to Cracks If you
If a foam section cracks during assembly, you do not necessarily need to scrap the part and recut it. Foam is highly forgiving if repaired with the correct materials. The CA Glue Method (Medium Density Foam)
DevFus Foam offers a fully functional trial with except one: you cannot export GCode or save/print projects. While that is a major restriction for actual cutting, the trial is perfect for learning the software. You can design a complete fuselage, explore every menu, run the cutting simulation, and see exactly how the software works.