simond
Western Thunderer
This evening’s brief endeavours have produced the 3D model of a box for the speaker, and I have significantly amended the pony truck pivots. Hopeful to get the speaker box printed tomorrow evening. The weather forecast suggests an ideal weekend for modelling, although we do have a couple of events. Progress will be made!
Richard Gawler
Western Thunderer
Perhaps art bounded by science? It looks great and I feel engcouraged to have a go one day.
Ian@StEnochs
Western Thunderer
Yes I already do that and I also give them lead piece bags on the splasher top rather than stowed on the tender locker!
Ian@StEnochs
Western Thunderer
I usually try to cast some lead into the firebox crown but with small boiler types the motor usually fills the space. In my 4mm period I did put the motor in the tender with a drive shaft under the footplate but don’t want the complication now.
On my 240 class I did arrange the tender to bear on the loco made easy by the single bogie arrangement.
Ian@StEnochs
Western Thunderer
Thanks Simon, it's almost finished now.
simond
Western Thunderer
It would be fair to say that yesterdays efforts were not as productive as intended. The brakes were an utter pig, and, having tamed that particularly malodorous beast, I found that they effectively blocked access to refit the pony trucks.
Sorted that this afternoon, and put it on the track to discover that it has now acquired an intermittent short.
Probably one of the brake hangers to an adjacent wheel, but I have not yet tracked it down. Most frustrating. I suspect that if it is not easily sorted, I will model the brake hangers and shoes on CAD, and simply 3D print them. Brass is daft in such a location, where there is so little clearance. At least I now have a good solution.
There were other irritations along the way, all of which conspired to rather spoil the rattle can black. It’ll repaint.
Ho hum.
Sorted that this afternoon, and put it on the track to discover that it has now acquired an intermittent short.
Probably one of the brake hangers to an adjacent wheel, but I have not yet tracked it down. Most frustrating. I suspect that if it is not easily sorted, I will model the brake hangers and shoes on CAD, and simply 3D print them. Brass is daft in such a location, where there is so little clearance. At least I now have a good solution.
There were other irritations along the way, all of which conspired to rather spoil the rattle can black. It’ll repaint.
Ho hum.
simond
Western Thunderer
This rebuild is throwing up all sorts of unexpected obstacles. I feel like Victor Meldrew, “would you belieeeeve it?”
The pony truck one-sided wheelie is caused by
a) free play of Slaters wheelsets on 0MF track, the gauge is actually 31.34 at that point, despite the radius being 6’ - it’s the tightest bit of the loco shed, and a short coupled wheelbase. There is next to no sideplay between wheelsets and frames.
b) tight radius - 6’ or thereabouts as mentioned.
c) no vertical springing on the truck, and no extra weight.
d) no centring springing on the truck
e) the frame of the truck hitting the inside of the frame on which I was about to mount the cylinders.
please ignore the jaunty angle of the vacuum pump, which was on the list. If I ever get to it…
I suspect that some pony truck side control might be next on the list of jobs I hadn’t planned to do.
The pony truck one-sided wheelie is caused by
a) free play of Slaters wheelsets on 0MF track, the gauge is actually 31.34 at that point, despite the radius being 6’ - it’s the tightest bit of the loco shed, and a short coupled wheelbase. There is next to no sideplay between wheelsets and frames.
b) tight radius - 6’ or thereabouts as mentioned.
c) no vertical springing on the truck, and no extra weight.
d) no centring springing on the truck
e) the frame of the truck hitting the inside of the frame on which I was about to mount the cylinders.
please ignore the jaunty angle of the vacuum pump, which was on the list. If I ever get to it…
I suspect that some pony truck side control might be next on the list of jobs I hadn’t planned to do.
simond
Western Thunderer
Phil,
have yourself a cigar, or marshmallow or gold star…
I had flipped the pony truck pivot in an attempt to avoid the issue of the front brake crossbeam getting in the way of doing it up, and this seems to have caused the issue, it was hanging a little lower than I’d designed it. I turned up the right way, and installed it on the pony truck, and then threaded it into the cross beam, and tried it again, and the problem has gone away.
Now, the cylinders.
simond
Western Thunderer
one side fitted and working! That vacuum pump…
Currently the upper end of the motion bracket is floating, once I get the other side on, I’ll reinstate the plate from the kit that joins and supports them. I suppose I could take that brass rod off, and replace it with something steel coloured.
simond
Western Thunderer
Indeed. There was, iirc, a loco of the same era as the 45’s, an inside cylinder 2-6-2, might have been a Dean design, or a Churchward-whilst-the-old-man-was-still-the-boss design, but either way, I have a feeling it was a one-off.
I guess the engine itself had the innards of a Dean Goods or predecessor of a 57, but that’s speculation on my part.
Now, if I can fit the other cylinder without a further unpleasant surprise, we might make some progress on other locos on the naughty step.
I guess the engine itself had the innards of a Dean Goods or predecessor of a 57, but that’s speculation on my part.
Now, if I can fit the other cylinder without a further unpleasant surprise, we might make some progress on other locos on the naughty step.
daifly
Western Thunderer
Simon
You may be thinking of these:
As you correctly speculated, using parts from surplus Dean Goods locos.
An article on this loco is in https://ttpublishing.co.uk/product/western-times-issue-6/
Dave
You may be thinking of these:
As you correctly speculated, using parts from surplus Dean Goods locos.
An article on this loco is in https://ttpublishing.co.uk/product/western-times-issue-6/
Dave
Pencarrow
Western Thunderer
Not the best looking of locos!