Butt Hook

Update 15/10/2018 :
Minor corrections on some parts.
First full print and assembly.

Update 02/09/2018 :
Changes on Top Base.stl,Bottom Base.stl
Old type of short hook deleted and replaced by Short Hook.stl.

Update 21/07/2018 :
Corrections on the size of most parts.
Option for two hook lengths.
Securing screw on the base plate is now 4M with knob for easy adjustment.
Base plate length reduced to 120mm.

26/06/2018 :
A first version of an adjustable butt hook.
You will need a