Anyone tried repurposing angle grinder with broken gears, like expanding the axis then putting it in a case, or should i just give up the idea and just junk it ?
The gears are what give it it's speed. Without them, it's just a high torque motor. Potentially useful, but not as an angle grinder.
I guess you could put a belt drive on it and make your own lathe. why not just buy the two gears for it?