Electric Vacuum Pen From Aquarium Air Pump.


Step 40: But What About With Suction Cups?

After initially finishing this project, I ordered some suction cups for a vacuum pen.   Well, they came and they make the pen work even better!

I got these on ebay looking for vacuum pen suction cups.  These were just under $4 for 6 of them, and you could pick between the sizes of 10mm, 5mm, and 3mm suction cups.  Prices and selection will vary depending where you find them though.
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