Definitely an interesting letter. I will admit to having, and having read, the book on the Quorn, but I’ve never had a desire to build one. I’ve always been mystified by the comments on the ball handles though. I can’t imagine that the functionality of the machine is affected by the handles, so if I did build one I’d re-design to use much simpler handles. No need to waste hours making ball handles.
As no-one else has owned up to having any grinders for an informal poll, I’ll stick my head above the parapet with my collection; here goes:
1. Cheap B&Q angle grinder: used for weld preparation, sorting out the welds after I’ve had a go at welding, and for DIY jobs where the ‘ammer is not suitable
2. Small bench grinder, one aluminium oxide wheel and one green grit wheel: used for offhand grinding of drills, HSS lathe tools and sharpening TIG electrodes
3. Old Clarkson T&C grinder with centres, bits of a universal head, a radius attachment and a swivelling vice: sharpening milling cutters and HSS lathe tools, not yet set up to sharpen drills or taps
4. Brown & Sharpe surface grinder: making things flat and parallel to better than I can achieve on the mill and for sharpening Coventry die sets
5. Myford cylindrical grinder: making jigs and mandrels, accurate tapered items and things like cylinder liners that need to be parallel and accurate to size to better than I can achieve on the lathe
Quack, quack – that’ll be me ducking the flak!
Regards,
Andrew