Plastic V bit carving,

Projects
1

I am carving letters in plastic, what speed and feed do I need to use so I wont melt the plastic.

2

Speed through a material depends on the material itself, depth of cut, size and type of bit. I can only recommend a single flute or spiral up-cut but, and moderately fast feed rate. You’re wanting to ‘chip’ the plastic out, as the chips carry the heat away.

Create a journal of your trials: material, bit, feed rate, depth, etc. Keep trying, you’ll get it dialed in.

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4

Here are some specific data for plastic carving:

  1. Polyvinyl Chloride (PVC):
    Cutting Speed: 100-300 m/min
    Feed Rate: 0.05-0.25 mm/tooth

  2. Polypropylene (PP):
    Cutting Speed: 100-300 m/min
    Feed Rate: 0.05-0.25 mm/tooth

  3. Polystyrene (PS):
    Cutting Speed: 100-300 m/min
    Feed Rate: 0.05-0.25 mm/tooth

  4. Polycarbonate (PC):
    Cutting Speed: 50-150 m/min
    Feed Rate: 0.05-0.2 mm/tooth

  5. Nylon:
    Cutting Speed: 50-150 m/min
    Feed Rate: 0.05-0.2 mm/tooth

These parameters are for reference only. Actual optimal parameters may vary depending on factors such as material type, tool selection, machine settings, etc. It is recommended to conduct test carvings before full-scale production to ensure the best results.

For the characteristics, just refer to this:A Popular Science Guide to Plastic Materials - Want.net :smiley: