I've just acquired a 2nd Bench grinder, with a Multitool sanding attachment fitted to one side. Since other end of the grinder is vacant, I am thinking on machining a 230 mm aluminium disc to be used as a disc sander. Having looked at the rpm of some of the bigger disc sanders available I'm now a bit concerned that the 2850rpm will be to high.
having a 230 mm alloy disc flinging around my shed is not something I want to experience.


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