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Good morning! CHJ said I do have a grinder with a 120mm wheel made by Elu (the one with the leather strop / belt sander) rotating up which I consider inherently less dangerous than rotating down. Consider that with downward rotation (as in the lathe itself) the wheel is always biting into...

Wow, thanks CHJ! Even I'm an electrical noob, I do get the jist of your explanation. You're right, there is no circuit board inside . just a black cylinder and the switch... . I have an external speed reducer with two settings on it but I don't understand how it is supposed to work - on some...

Hi all, has anyone changed the speed of their grinder down to 1425 rpm? Specifically an Optimum grinder (= Axminster) with the 200mm x 32mm wheels... It would seem to me that you could just replace the circuit board inside... Ciao, formerfiddler