01-28-2024, 08:21 PM
I got the turntable back from my friend this afternoon. He pretty much rewired at least half of it.
The way it was originally wired was through the curved rail in the pit. The rail was split into two halves; positive and negative. Each end of the bridge picked up power for one side of the bridge track. We decided to do something a bit better.
Now the entire rail ring is powered the same polarity and both ends of the bridge pick up power for one rail on the bridge track. The other side's power is routed through the main pivot axle in the center
My friend fabricated the power slider/wiper that attaches to the pivot axle. He tested that and it works perfectly. I do have to make some improvements to the pickups on the bridge ends.
You can see here that there is fresh glue on the wooded bridge structure. That was either never glued or now glued very well as those joints failed and it allowed the bridge ends to rock on the center pivot, breaking contact with the powered pit rail. I glued it back togetherafter I made sure that the bridge laid flat.
The other thing I did was to polish the rolling wheels on the ends of the bridge. This is how the power is transfered and the wheels seemed quite dirty. I might try some dialectic grease on the as well.
When the bridge glue has set I'll test everything with my multi-meter and them glue the bridge track back on. I'm not sure what to use on Micro-engineering track to wood/metal?
The way it was originally wired was through the curved rail in the pit. The rail was split into two halves; positive and negative. Each end of the bridge picked up power for one side of the bridge track. We decided to do something a bit better.
Now the entire rail ring is powered the same polarity and both ends of the bridge pick up power for one rail on the bridge track. The other side's power is routed through the main pivot axle in the center
My friend fabricated the power slider/wiper that attaches to the pivot axle. He tested that and it works perfectly. I do have to make some improvements to the pickups on the bridge ends.
You can see here that there is fresh glue on the wooded bridge structure. That was either never glued or now glued very well as those joints failed and it allowed the bridge ends to rock on the center pivot, breaking contact with the powered pit rail. I glued it back togetherafter I made sure that the bridge laid flat.
The other thing I did was to polish the rolling wheels on the ends of the bridge. This is how the power is transfered and the wheels seemed quite dirty. I might try some dialectic grease on the as well.
When the bridge glue has set I'll test everything with my multi-meter and them glue the bridge track back on. I'm not sure what to use on Micro-engineering track to wood/metal?