With the coming of Spring, almost, I've been able to get on with the class 37 bogies, with the key being the assembly of enough traction motors to test assemble the first one. It's been too cold to do anything in the shed!
Putting the 3 motors in place showed exactly where the cross-members needed to be trimmed, to prevent the reduction gears fouling on them. A bit of a design cock-up there! These have now had sections cut out with a piercing saw, which doesn't seem to have affected the strength of the bogies at all. It looks a bit untidy, but it isn't going to be easily visible, so I'm not too worried
A view of the other side, with the cosmetic sideframe from the kit attached with Blu-Tack! It's wonderfully versatile stuff, although something a little more permanent will be used in the end
The last recent achievement has been adding the brackets for the torque reaction arms. These are soldered to the cross-members and will both prevent the motor rotating around the axle, and it will also locate the motors laterally.
The arms will, quite simply, be made out of wire, probably 0.7mm NS, although I haven't made my mind up yet. They'll hook into the top holes on the motor brackets and the soldered brackets. The theory is that the motor will be able to move around the axle slightly as the axle moves up and down on the springs. The original plan was to have slotted brackets, so the motor could move up and down in the same plane as the axle, but these looked a bit too tall in the end, so I substituted some other parts that were included on the frets for a different purpose.
I'm still learning as I go!
- 1
7 Comments
Recommended Comments
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now