Phone Holder, smooth tilt adjustment (Lock Fix)

This is a remix of https://www.printables.com/model/176417-phone-holder-smooth-tilt-adjustment-prints-in-plac

I solved the problem of it not staying in place by adding a locking mechanism.  You pull the adjustment knob out to adjust it and push it in to lock it in place.  The knob needs to be pushed in initially to break it free.  Then it should pull in and out easily.

I also added the speaker from my model https://www.printables.com/model/5410-adjustable-phone-holder-v2 and cut a hole in the plate for phones that have PopSockets attached.

The 2nd model has the ‘helper discs’ included to help it stick better to the build plate.