Stage Lighting Focus Wrench

A 3D printable focus wrench loosely based around some of my most frequently used tools
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updated May 1, 2024

Description

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This is a tool used for hanging and focusing theatrical/stage lighting fixtures.  It includes holes for each of the 3 most common sizes encountered on c-clamps; including the square pan bolt, square 5/8 bolt, and the hex ¾ bolt.  There are additional holes in the middle that work well with the wing nuts sometimes encountered on o-clamps.

The design is loosely based around a tool I carry on a regular basis, with some changes made to (hopefully) make it last longer as a 3d printed part.  That being said, it is a plastic wrench and I don't expect it to hold up anywhere near as well as a metal part.  I use these primarily to hand to volunteers when I don't expect to get them returned at the end of the day.

I'm still experimenting with the best settings to use, but even my initial test at 35% infill with 4 walls in PLA was able to provide plenty of torque on the bolts without any noticeable deformation.

 

Note: on both of my printers, the holes are a bit tight.  You might want to scale the model up ever so slightly to give yourself a looser fit, though it will likely “self clearance” with use.

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