8.1 The CNC Bit Bumps into Clamp Sets

Possible Causes

• The work origin is set wrong.
• The model size exceeds the maximum work area.

Solutions

• Reset the work origin and run boundary again.
• On Luban, scale down the model size to fit the work area. Note that you should reserve a clamping area on the CNC Carving Platform while designing models on Luban.
  • Work area for A350: 320 width × 350 depth
  • Work area for A250: 230 width × 250 depth
  • Work area for A150: 160 width × 160 depth

8.2 The CNC Bit Breaks During Carving

Possible Causes

• The work speed is too fast.
• Sawdust is clogged in the flutes of the CNC bit.

Solutions

• On Luban, lower the work speed. The work speed varies with material and tool types. Set a proper work speed based on your material and tool choices.
• Change material. Plastic is likely to clog and thus melt during carving. Should you carve plastic materials, you should use a single flute end mill.