Locking Handle - 1X30 Belt Grinder

This utilizes the spline nut on the inside of the original lever. Mine was broken so I took some liberties to make my design less obtrusive to the table so it's very different from the original. It should be less prone to breaking and more comfortable to use.

This requires significant supports and I have some suggested settings that should print better than mine did on the bottom layer (see images).

The spline nut can be inserted into the opening with the array of tabs these are designed to allow the part to bend and clasp the spline nut.  There are 4 alignment features to transfer torque between the nut and the plastic lever, ensure these are aligned before installation.  This went together by hand very easily for me, I expect if you use material other than PETG it will be more difficult to assemble but still possible.

Ensure the spring and shoulder bolt available before installation (see images).

ORCA Print Settings
• Material: PETG @ 250C
• Line: .6mm Nozzle, .6mm line wide, .3 layer height
• Aligned seam
• Walls: 4 walls, 4 top/bottom layers
• Infill: 100% solid
• Support: Normal, .1mm Z distance
• Paint the inside of the lever that holds the spline nut with remove seam to ensure the best fit possible.