It would be nice if these builds all went perfectly, that's the impression readers might get, but there are days when things go horribly wrong. I thought it might be a good idea to get the sides attached to the roof, and when I did my Class 24 a few years ago I used the thinnest Rocket superglue. I should have remembered how uncontrollable that was. It all started off reasonably well and this thin stuff grabs quite quickly and I re-enforced that with some medium along the join. But then matching up to the cabs again, one end had splayed.... and was solid..... Then followed a tense half hour ( with colourful language ) trying to get the joint apart. I managed to break free some of the side, the boiler end was stuck fast. The only way was to attack it with a razor saw from the inside before the medium glue went off. This ended up with the saw, me and anything else I handled covered.. Anyway eventually I cut far enough through from the back to break the side free without any visible exterior damage. I cleaned up with big files and managed to salvage the tongue and groove at the radiator end and fixed in place the side with 5 minute epoxy. The rest was left free and will be fixed when I attach the No2 cab.
There endeth the nightmare.. So lessons: 1. Don't use thin superglue, it goes off too quickly 2. Screw the sides to the floor to align them when glueing the roof. I did that last time but not this... why? Who knows...
Sometimes sh*t happens, the answer is to plan a way out and don't panic.
Sharp eyed viewers will notice the side has sprung in slightly, that will line up when the cab is attached as it's not glued this end. I made up the little brackets that attach the water pick overflows to the roof, they looked a bit plain otherwise. One has pinged off during the wrestling match.