Phone Holder for (lamp) Arm stand

thingiverse

This is a simple, but very resistant phone holder for arm stand. I've modeled it for an old arm lamp that I've reused for this purpose. Only hardware you need is: - x1 M4 Hex bolt - x2 M4 Nuts One nut is for tightening knob to bolt, the other nut is inserted in lower piece Print it lying on the side to have the maximum possible strength (anisotropy) Among stl files there is lower piece with integrated supports. This one must be printed with at most 0.45 mm line width to be sure to print the supports.