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| New bogie posed in front of redundant one |
The original bogie, shown in the background above, was built from the etches in the Lochgorm Yankee Tank kit which began the Yankee Tank saga way back in March last year. Having long ago consigned the remainder of the kit etches to suffer the opprobrium of despatch to the recycling plant, I decided that the bogie should in its turn follow suit and be replaced by a better scratch built version with springing and with a more prototypical appearance...
The 0.7 n/s side frames are spaced 20mm apart, which necessitated using extended hornblocks which I made by soldering together two of Slaters' hornblocks, front to front and cutting off the protruding outer circular bearing. This produced a 6mm slotted hornblock which protruded 4mm beyond the frames. These run in cut-outs in the side frames and are prevented from rotating by slim vertical side strips, the extra unwanted slot in each hornblock was filled with a brass insert on top and finished with Milliput.
The compensating beams, outside the frames, are cut from 0.7 mm n/s and are mounted on 12BA screws threaded through the side frames. Although they are non-working there is a wire spring behind them bearing on the tops of the hornblocks. The cosmetic w/m springs behind the beams are castings that I made myself some time ago for my HR Wee Ben. There is no side play on the bogie, the pivot point of which is located some way behind its centre point which effectively allows the bogie to negotiate the 6ft radius curves of my test track in the studio without fouling the cylinders or drain cock operating rods.
Tomorrow HR54 goes to the Open Day in Carlisle for a run on the CD0GG layout where we'll see if she can negotiate that!
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| New bogie in position. |
Very nice, much more like the real thing. I must find time to cut my rods and get the patterns back to you. Regards, M.
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