Model C number 13 (so roughly 13x28 in Merkin parlance), bit of a labour of love rolling-rebuild! VFD to get 415 from 240 (hacked, not hideously overpriced Drives Direct or whatever, it seems to be the same mod' though and cost me 50p to do) with a home-brew control box full of tacho', motor current meter, switches, relays and pot's to do Clever Things like near-constant surface speed (slider pot on the cross-slide) and jogging, overspeed to get 2500 RPM for short periods or underspeed to get 2.2 RPM (cogs a bit), still hunting for the accessory change-gears for DP and Module threads, pair of steadies (will have to make 'em I think, rarer than hen's teeth / rocking-horse droppings / honest politicians). Purists will probably complain about the paintjob, bright red (doesn't show the blood) with a white bathtub featuring St George's cross...
I have an adaptor to put the topslide on an angle plate (then bolt a small tilting machine vice to it) to do light milling, gives 10.5" of X travel (with power feeds, of course...), 5.5" of Y (manual, sadly
) and ooh... 28" of Z with power feeds
It's rotatable too, should I want the Y axis at other than 90* to the X, and big enough to bolt a 6" rotary table on...
I have Further Modifications planned, the Model C didn't come with the single-tooth clutch LH/RH and trips in the feed/threads drive like the B's, T's and H's, there's room for it in the QCGB and under-spindle geartrain though, the hard bit will be making it work on the coarse thread setting (will need something like the machine-gun synchronisers WW1 biplanes had, perhaps from a cam attached to the rear of the spindle, to make it work - in progress!).
Dave H. (the other one)