The half right bit being at the end of my last, unusually verbose, post where I said that the next post would be about modelling and with pictures and stuff. So here it is! The part I was wrong about though is that I thought it would be about the 37 bogies, however I've decided to do a bit more to the TTA chassis that still only currently exists in the virtual world.

I've now drawn up the axleguards (W-irons if you must ), mounted them to the chassis rails with Scale Hardware rivets, and put the wheels and bearings into the axleboxes and slid those into place in the axleguards. The good news is that it all fits together!

Isometric view:

One thing that I did discover during the assembly process was that there were some dimensional issues with the axleboxes - both of them were too small, but luckily as I'd scaled all the dimensions off photographs, all to the wrong ratio, I've got away with it by just scaling them up as a complete part. That was more luck than judgement though!

Looking at both the side and end views, below, I'm happy that, so far, everything looks to be the right kind of size and in the right place. If anyone can see something that looks wrong, please let me know - sometimes it's hard to see the wood for the trees when you're looking at something constantly.

The axleguards still need the wear liners added (these will fold up onto the axleguards), so there is a bigger gap than there would otherwise be between the guards and the axleboxes. The next job to tackle will be the inner chassis rails and cross-members, which is going to be quite an interesting task, I think.