Continued machining the crankshaft, having found I can use a hefty parting-tool and holder with a slightly unusual tool-holding arrangement to reach the crank-pins.
With a shallow cut, very low-ratio change-wheel set, back-gear engaged and the 3ph motor happy at about 1200 rpm (says the label on the controls), it takes a while or six to face each inside web-face, but slow and steady does it. I placed a stool by the tail end of the lathe so I can sit and watch progress, occasionally getting up to brush some cutting-fluid on the work. The lubricant is soluble oil but I've made it to low dilution so more of it stays on the steel for longer.
The stool is also by the workshop door so I can break the hypnotic effect of watching big, angular lumps of metal revolving at about 60rpm for some 20 minutes a cut, by intermittently watching the antics of the sparrows in the garden – with an ear open to any change in the monotonous "whirr-clonk-tink" from the lathe. I ought add the self-acting feed trigger, and the motor controls, are only just beyond arm's length from the seat: the controller is above the tail end of the lathe, well away from big angular lumps of metal revolving….
Now reached a stage where I've started turning the pin to size. Once that's done… repeat with the other crank!.
'
Than after dinner…. visited an acquaintance to see his newly acquired Foden undertype lorry with twin rear axle, in about 3" or 4" scale; bought from a dealer. He'd removed the platform and cab, to reveal what seems to be been a very well-built vehicle that had later suffered from enthusiastic but less caring hands with a rather free-and-easy approach to modifying the quite complicated plumbing.
Not sure which is the more appropriate, "spaghetti" or "dog's dinner", but I've never seen such a tangled mess of bent and twisted, over-length, copper pipes so interwoven with everything else they are very hard to trace. It certainly does not reach the standard of the rest of the workmanship. And quite what some of the pipes do is anyone's guess. The new owner and I agreed the best approach is a cautious steaming (the lorry has a boiler ticket, albeit a photocopy of the original for an unknown reason), test of hand-pump, injector and safety-valves, and twiddle things to see what operates, and what doesn't but should!
'
Thence an evening free of oily swarf and pipe-work that fits where it landed. Hied hence I unto Dorchester 10 miles up the road (handy, the bus pass-age) to a geological lecture whose dry and somewhat cumbersome title belied a thought-provoking talk that showed it's not only Oxygen that life like our own needed to evolve, but also lots of Phosphorous. (It's one of the 4 elements in the DNA compound.)
Followed by relaxing couple of pints with two friends of similar interests and fellow lecture attendees, in The Blue Raddle – a very pleasant town pub with that slightly old-style club-like ambience, lots of references to sheep as you might expect, and of course as a CAMRA-listed free house a selection of excellent ales on pump, plus the usual keg fountains, etc.
Only… had to pay for the last 2 miles home (separate bus) as the pass ends at 11pm cocoa-and-slippers time.