Grinder M12 axis Extension

thingiverse

I design custom frames in my optician store, using a former grinder provided by my podiatrist neighbor. The grinder is a Creusen model, powered by 220 volts with a 650-watt motor. To adapt large polishing wheels for my work, I use a cord drill to secure them to the grinder. However, the current thread is too short, so I've had to improvise using M12 screws to hold the wheels in place. When designing the extension, I considered adding reinforcement with an M6 thread rod and two nuts to provide extra stability. This will be essential for handling larger polishing wheels, which have a diameter of between 200-250mm. I'm still planning to install an M12 tap on the grinder itself, rather than threading it directly into the extension piece. Since I don't have a left-hand thread tap, this will require some additional effort. To create accurate scales for my custom frames, I've programmed the X and Y axes to display at 110-120% of their original size. The Z axis remains at its standard 100%.