A CR 670 Class part 3
I am awaiting some parts for the engine, so I thought I would push on with the tender.
The kit does provide all the spacers and a basic compensation beam for the tender chassis. But as usual I have odd ideas about these things. So the chassis sides are adapted for High Level hornblocks and then connected by a length of double sided copperclad. This gives two large lands on the top for pickups and suppression components.
The semi circular compensation beam would be visible through the tender cutouts, so I fabricated this one . Good steel pivots to reduce friction and adjustable for ride height by means of an easily accessible screw underneath. Yep, completely lockdown madness, but why not.
A pic of the chassis made up with wheels and brakegear. The pickups are gold tips from scrapped relays soldered to 12 thou spring steel guitar wire. Hopefully this will produce a low drag 6 wheel pickup to aid good running. Might need a bit of a tweek, but all seems to meet the pushing round the track and through points test.
The tender body went together fairly smoothly. This class of engine ran with a bewildering array of tenders during their lives, so I have tried to work closely to a known period photo, some slight variations from the kit. Forming the top flare with its flared corners is a time consuming task, but I think I got it about right. Probably a bit of filling will be needed along the joint, but that will be easier to see after a coat of primer. As ever I see things on photos I missed before, a few bits of tidying up needed.
For a while the CR used a strange style of handbrake with a vertical capstan wheel geared to a vertical shaft. I can only assume the gearing gave some mechanical advantage, but having a finer pitch on the threaded end might have been simpler. Anyway I have a tin of watch gears. So I had a go at fabricating the mechanism. The horizontal shaft is actually a tube so you can spin the handwheel round. Did I mention lockdown madness?
Hope everyone is keeping well.
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