Simple suspension was my aim for the TOR models and I think I have achieved that. My 49 and 47 class locos have run successfully with the springy suspension I came up with a few years ago but I think my latest idea is much more successful, as the old idea did add some resistance, but I didn’t want to go to the expense of building complete new bogies so I accepted it. This new method adds springing to each individual wheel and provides improved electrical pick up without the resistance.
So I will try and explain what I have done as photos are a bit tricky.
Solder the wire to the inside edge of the bearing and fold as above. This is where it gets tricky because normally, you would put the axle together and drop in the bogie, but here I am going to fix the bearing in the pick up frame, without any wheels or gearing attached, which gets a little fiddly later.
I use some packing and a peg to hold things in place but I removed the peg in the pic so you can see. But from here I will bend the wire back along the top of the pick up frame and solder in place which creates that Z shape I was referring to earlier. Repeat for all 6 axles.
Now the failing with this is that not all wheels are equally sprung,creating issues, but it works and will make the loco run reliably. This will get us thru full exhibition weekends with reliable running.
However, discussions on rebuilding the side frame completely has commenced. So I would say things in the future will have a more accurate resolution. Stay tuned.
4908 waits for 4716 from Canowindra to arrive so it can continue with its loaded wheat train to Cowra.