Spindle Lock And Knob, Grizzly G0758 Milling Machine

thingiverse

Spindle lock for the Grizzly G0758 milling machine. Frees your hand so that you can hold onto the bit, collet, or other R8 tool holder and prevent it from being dropped and damaged. A stronger, more rigid replacement for the lightweight factory quill DRO spacer for steadier readings. Use with the factory-supplied pin tool. As a safety feature, when the pin tool is inserted and the spindle locked, the chip shield cannot be closed preventing the machine from being turned on. Used with a 2-7/8"ID, 4-1/4"OD, 7/8"H shaft collar on the quill that you will need to drill and tap in order to mount this item. The second model is a knob that fits the 17mm flats of the drawbar adjustment nut at the top of the spindle. Use the knob to turn the spindle into position in order to insert the pin tool. Aids grip when your hands are oily. The knob can be left on the machine during operation, fits under the dust cover, and does not interfere when the quill is lowered. Works well in combination with the socket knob: https://www.thingiverse.com/thing:2802475