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18650 Grinder Jig (Dremel)
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Use your Dremel to deburr spot-welded 18650 cells.
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- Creative Commons — Attribution — Noncommercial
Deburr spot-welded 18650 cells with your Dremel. Both the the corded 400 XPR and cordless 10.8V Lithium-Ion Dremel fit the thread.
Fine-tune the distance between the grinding wheel and battery bottom (top) via two M5 machine screws for perfectly smooth contact surfaces. It's all about repeatability.
BOM:
- 2 x Hex socket head cap screw M5x0.80 x 12
- 2 x Hex socket head cap screw M5x0.80 x 16
- 2 x Hex socket head cap screw M5x0.80 x 25
- 2 x Hex thin nut grade A & B M5x0.8
- 2 x M5 washer
- Dremel 8193 Aluminum Oxide Grinding Stone
- 6 x ½" silicone door bumpers (optional)
USE AT YOUR OWN RISK! 18650 LI-ION BATTERIES CAN BE A SERIOUS FIRE HAZARD IF HANDLED IMPROPERLY!