Dremel 18650 grinder
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Dremel attachment to clean up re-used 18650 cells.
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This attachment is adapted from DaniRP's model.
I thought that cleaning up the center of the button and bottom maybe was faster if the axes of cell and and grinding stones were not aligned.
I offset the center off the cell slightly from the center of the grinding stone.
I have an 8250 Dremel, but I assume it will fit most Dremel rotary tools with similar thread.
This attachment uses a ~10mm grinding stone with a flat end.
Some of these grinding stones are hollowed out on the end, I dressed the stone flat using steel grit on a glass plate. A diamond dresser or a dressing stone, e.g. Dremel 415, should work also.
(A dressing stone is good to have anyway, to recondition or reshape your grinding stones.)
Printing
I printed in ASA with 0.6mm nozzle, 0.25mm layer height and 20% infill.
A brim to help attachment to the bed and organic support for the top of the 'window'.
Feedback for improvement is always appreciated!
Bart