Old School Fire Alarm Disc Replacement
thingiverse
We have the old fire alarm pulls in our old school and the Fire Chief was impressed that we still had a stash of 3 extra discs. The discs are made to break when the lever is pulled, making it impossible to undo the alarm without a screwdriver and a new disc. No one makes the discs anymore and most people are forced to buy the newer version with a plastic bar across the lever. If you have these old ones and no spare discs, get to printing. only about 4 minutes to make one.
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