USER MANUAL
Hole and Small Shape Cutting
It is recommended that you slow down cutting when cutting holes and small shapes.
The generally accepted method to get good holes from 37mm dia. and down to material
thickness with minimal taper using an air plasma is:
1. Use recommended cutting current for consumables.
2. Use fixed (no THC) recommended cutting height for consumables.
3. Cut at 60% to 70% of recommended feed rate for consumables and material.
4. Start lead in at or near center of hole.
5. Use perpendicular lead in.
6. No lead out, either a slight over burn or early torch off depending on what works best
for you.
You will need to experiment to get exact hole size because the kerf with this method will be
wider than your usual straight cut.
This slow down and real-time macro for THCOFF can be achieved by manipulating the feed rate
directly in your post processor or by using special rules (for Sheetcam or Plasmicon CAM
software).
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