Today we went first with the guide wheels on, so I can also set the track chain, especially at the drive wheels.
For this I must first make two axes, since the originals are soft iron and China have only 3mm.
I use 4mm silver steel.
The stop I'm easily in the washer do I solder a little hard. I stretch to the axis standing in a vise, spend some flux and put the silver disc and a small section in the middle.
That one must then only with a gas flame to heat up the solder melts and runs clean.
After brushing, so I have two suitable axes and I can mount the idlers.
Then it's back to the drive axles on. The build is woder hardest part of the tub.
The axles do I feature 8mm silver steel I first ablänge plan and turn. Then comes in each axis at one end I cut a hole in the M4 thread.
Thus, the drive wheels will fit on the axles I milled a flat on each.
Now I can stick the axle with a sprocket mounted to the bearing and align with the chain launched.
The position of the output gear I makiere loop and the point on the axis. In addition, I filed the hole of star-shaped.
Provided with some flux I now address the axle and the gear on a fireproof surface from each other.
So I can then solder the parts hard.
After brushing, I now have a perfectly stable connection to the axle and gear.