After a most enjoyable running session recently with Big Jim visiting the BURPS, I was most impressed by his Swift Sixteen bogie wagon and decided to buy a bogie set and a four-wheel set to use in my next scratch builds.
When they arrived I was well pleased with the quality of the moulding and the wheels in their tubes work extremely well. Having never seen them before I had no idea how they are generally assembled so I will show how I did it. This is not intended to be a tutorial, rather my way of tackling a new challenge.
Firstly, the woodscrew provided was not the way I wanted the bogies to be attached to my wagon... I needed a way to remove them from underneath if required, so I used a hex. head bolt of about 3mm diam. and drilled a 4mm hole through the bogie casting from its top centre.
After this had been done the brass tubes were glued into the grooves with epoxy adhesive and allowed to dry. The side mouldings also have to be glued in place but first needed to be shallow-drilled to allow the pinpoint axles to recess into the large diameter holes without making contact, which might cause friction on them. I used the same idea on the axleboxes too! Superglue was used for the final attachment.
The bolt head had to be fixed so that there was no way it could rotate when (if) the bogie had to be removed in the future. Firstly a few plasticard discs were cut and sandwiched together with the hex. shape cut out. Then a groove was cut across the bolt head and the discs so a brass rod could be fitted to prevent rotation. When finally glued to the underside of the wagon there should be no way this will move!
Once fitted, the nut will be loosely attached and held with a threadlock additive. Because the centre hole through the bogie is slightly bigger than the bolt diameter there will be adequate movement to let the L/R and up/down motion, which is built into the bogies, operate as intended.
To ensure the side frames were equally attached on both sides of the bogie I used a piece of timber to set the height...
All of these ideas evolved to suit my particular needs and are not intended to be the definitive way of assembly... I would be interested to hear of other ways of these bogies can be constructed.
The best things in life are free.... so why am I doing this?