LumenPNP CP40 Nozzle Vision Shields

These little vision shields can be press-fit onto standard CP40 pick-and-place nozzles to aid in machine vision. Tested and work perfectly on my Lumen PNP but likely to work with any other pick & place machines that use CP40 nozzles. 

To really get the benefit of these, you need to source some black velvet “still-life photography” drop clothes used by photographers.

Print Settings

The assembly in the pictures was printed at the following settings:

• Printer: Prusa Mini+
• Print Settings
  • 0.25mm nozzle
  • 0.1mm layer height
  • 99 perimeters
  • 50% speed
• Filament: PolyTerra Charcoal Black
• Supports: none
• Brim: none

Print Instructions

1. Use the smallest nozzle you have (0.25mm works well) and set the speeds 50% slower than usual.
2. Be careful removing them from the print bed - they're very thin.

Assembly Instructions

1. Carefully remove the vision shields from the print bed.
2. Source some black velvet “still-life photography” or “product photography” backdrop material. Mine came from a lightbox backdrop. It's a very fine high-quality black velvet that does a fantastic job absorbing light. It is paper-backed.
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3. Cut off a little square of the material - large enough to glue to the bottom of the vision shield.
4. Glue the backdrop material to the CP40 shield using a glue-stick, then trim off the excess material with an x-acto knife.
5. The vision shield is a press-fit onto the CP40 tip and is held by friction. Be careful not to touch the velvet with your fingers.
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6. Tweak your vision pipeline in OpenPNP so that it excludes the edges of the vision shield. You should see only the nozzle tip and it should easily find the bore.
7. Enjoy your perfect bore & part detection!