Extech 530 Multimeter Selection Dial and Battery Cover
Description
Broke the selector wheel on my older Extech 530 Multimeter. Extech wants $100 flat rate to fix it (a friggin' plastic part!) and won't sell me just the part. So I made my own. Prints fine with supports, put the detent circle facing to the bed. You will spend some time trimming up the wiper mount nubs with a razor knife - just be careful. If you print this with a 0.2mm nozzle, it'll likely be a lot easier. I did it with a 0.4mm. I had trouble duplicating the silly detent chain, so it's a little stiffer than stock, but rotates fine. Because of the way the original wheel mounts, you may have to drill out the center of the external wheel to clean out any leftover indexing details in the shaft - all of mine broke off so I couldn't duplicate them. I'm happier with this design. The battery cover should fit any EX5xx series meter.
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