Hope fully I should have stepless grinder adjustment soon
I discovered that the exact same burrset including the motor/gearing mountings that oe in my Isomac grinder are also used in the Iberital MC2. The Ibertial however uses uses a worm adjuster on the teeth on the outside of the top burr carrier, whereas the Isomac uses a peg in the holes in the burr carrier. Obviously using the worm drive gives infinite grind adjustment. My only gripe about the Isomac was the reqired grind often fell between settings when trying for a ristretto, as you are so close to stalling the machine at this point. One of the Innova grinders also uses the same worm drive, and is quite highly thought of, I believe, as the conical burrset is very good (much better than the one used on the Solis/Dualit/Starbucks one).
Having found a source for Iberital spares in the UK, I investigated the possibilty of obtaining the worm drive as a spare part. Yep £14.61 incl P&P.
The parts turned up this morning, so if I can find some suitable mounting bolts I can give it a try later.
I know it won't quite be a Mazzer, but it should keep me happy for a while, as the stepless adjustment is one of the thoings people like about the mazzer, and I saw in a comparison that this burrset gave a quality of grind not so far behind the mazzer one. OK the machine is not pretty, and the buld quality is dubious, but at the end of the day it is the grind quality that counts.