The bogies consist of an etched frame with whitemetal sideframes. All very straightforward really but there are a couple of points to watch for.
When folding up the frames there are some inner striffening ribs to fold down after the sides are folded down. (I used a 2" Hold & Fold for the sides and a pair of square ended pliers for the ribs). If the ribs are just folded as they are they will splay the sides out so a file has to be taken to the edge of the rib that will butt up against the side, arrowed in the photo;
With the bearings in place there is too much axle slop, easily remedied by inserting a thin 2mm washer (Gibson) between the bearing flange and sideplate on one side only. Bearing holes, etched quite a bit undersized, were opened out with a 5 sided broach before the frames were seperated from the main etch.
The etched holes in the sides don't match the cast holes in the w/m sideframes;
A bit of (not too pretty) filework sorts things out;
To hold the frames whilst filing I used a small hand vice;
Sideframes will be glued in place later on, after I've fitted mounts for tension lock couplers (not included but I have a plan...).
All soldering was done with an Antex XS25 using 188 degree solder.
Paul.
- 8
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