Still finishing up on the B unit.
Added the grab iron brace at the back end of the cab.
I know I have talked about how fragile the walkways are.... but I don't think I've talked about repairing them.
Actually, the walkways in this kit are not particularly fragile. It's just that with all that I have been doing to them and modifying them.... I'm handling them a LOT.
Well, sometimes a solder joint pops... and it always pops at the same spot- meaning this is a pretty weak spot.
The walkway is composed of basically two pieces of brass.
The tread walkway, and the underframe.
The underframe is where all the screws go for the motor, gearbox etc.
Anyway, KMT folks assembled these with no visible solder. So they were clearly assembled with a good resistance soldering station. The parts are tinned only at the very edges and then melted together with a resistance soldering station.
The good news is that the parts are neat and clean.
The bad news it that the joint at the back at the end of the Cab area is week.
And that's where this one popped loose.
So I carefully repaired it.
I scraped the brass to get all corrosion out of the way and expose fresh brass.
I then added flux and some solder on a sharp tipped iron.
You can see two spots where I added it right here (marked in red).
Now it is sort of obvious, but solder has surface tension and when soldering a corner, something of a little blob is left.
So as you can see by the marks, I used mini-files to smooth it down and make the joint less conspicuous.
I also added some solder at the back end.
Well, I'm starting to get close now.
I can see the light at the end of the tunnel.
I went back and looked. This thread started a couple of days before Halloween.
Obviously, there were times when my work slowed down, but there is a lot of work represented in these past 5 months.
And it is hard to imagine that over 600 photos have been used so far.
But I'm getting close enough to taste it.
Spring is now here in the Deep South and so it is safe to airbrush.
I took my paint and made some paint swatches.
(I know, I should have used a gray background instead of ivory business cards.... but hey, it is just a simple sample.).
I still have not gotten the springs that I'm having custom made.
So I still have a little pantograph work.
When all is ready, then I'll be moving to paint prep and painting.