Bow violin holder

The forearm socket is a rebuilt Kwawu2 socket, and the shoulder mount is also made of Kwawu2. The end for the wrist screw has been changed so that a 16mm tube can be attached instead of the screw.
The socked is made as short as possible, then the screw handle is cut off and I constructed a 16 mm pipe holder in its place.
The second element is the bow holder. It consists of two parts. A proper bow holder, fits a violin bow, and a 16mm tube holder attachment. The bow holder must be printed from a flexible material, I print with Fiberflex40d (Polish manufacturer, Fiberlogy), additionally two M4 and two M6 screws are needed (or M8, I don't remember exactly). M4 are used to clamp the bow in the holder. M6 connect the handle and tube mount. The handle cannot be attached to the tube mount permanently, it must move freely. For this reason, a collimator must be mounted on the soundboard of the violin, otherwise the bow will move incorrectly along the strings.
The bow holder is designed to fi