Adjustable mount

This is an easily adjustable mount for holding a laser tube in position. I wanted an easy way to budge the tube up and down for one of my tests. Ideally I would have done it with a single adjustment screw but for simplicity I ended up with one on each side. They have to be raised and lowered equally but that's easily done with the adjustment screws. The nuts were packed out with an knurled acrylic disc, the acrylic has less wear when holding the but tight.

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