However, I cut the ring axially once to allow putting pressure on it by a grub screw. These are a nice option for my use case.Also allows to hold dop sticks of different diameters. Usually used for milling, but a good solution to hold the dop stick.Beside that I bought some ready made parts: The axis and rods however are steel shafts. I simply bought some left overs from a close metal dealer and used my low cost (and self CNC'd) milling machine and lathe to create arbitrary parts. You might have seen that many of the self designed parts I milled or turned out of aluminium. In the following I'd like to share some details that were not part of the video: Although arm is fixed, a good view on the stone should be possibleĪll of that I tried to consider in my design here's the video presenting the outcome:.Fast and accurate change of angle limit.As the name indicates the size of the faceting head should stay as small as possible for the least demand of space.Index wheel and needle should provide solid fitting, stability, and accuracy.
Angle change should happen on an exact perpendicular movement.Arm should be fixed and rotations and movements should not allow any play.It should be more "massive" in order to eliminate vibrations.The joints and connections between the parts should be more firm.Essentially some ideas I had already after I finished my first self built faceting head (described here).īeside a better quality and reliability this faceting head should fulfill the following requirements: I recently finished one of my long term projects that I had in mind for quite some time before I started.