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A while ago I drew up some plans for a scratch built turntable, and for several years they only remained drawings. A few weeks ago I started building this thing and it's been a lot of fun so I wanted to share my my progress. Hopefully this can entertain and inspire some!

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The bridge frame is 30" long (to accommodate my J1a) and made from 7/32 brass tubing soldered together. I wanted to use tubing in order to keep the weight down and the result is lightweight and very strong.

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I plan to make the bogies out of these brass I beams I made. One on either side of a couple of insulated bearings which will act as the wheels. The weight of the turntable is going to rest on the pit rail and it will supply power to the center rail.

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The bridge is going to pivot inside this wider diameter brass tube which should carry the power for the outside rail.IMG_9987

This is what I have so far. And it's my first time attempting a project like this so please send questions and suggestions my way! More updates to come!

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Last edited by TrainDane3768
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I'm also in need of some advice. So a lot of O scale turntables I've seen incorporate wooden ties under the pit rail. However, some of the larger real-life turntables used ties plates bolted right to the concrete. My turntable is loosely based on PRR turntables, and most pictures of smaller ones show wooden ties while the larger ones look like they're sporting only the tie plates. But I'm not sure. Does anyone know if a larger PRR turntable from the early 40s would have used wooden ties or just tie plates on concrete?

I admire your effort so far.  You have tackled one of hardest parts of building a turntable first, an intricate TT bridge.  I used a two sets of small ball bearing for my bridge wheels.

I started my $10 homemade TT  with the TT hole and pit, which went fast, then the homemade drive system and the simple bridge last for my postwar toy 027 layout.  You may have the easier parts too come but I have not seen your plans.

Do not get discouraged.  I see you are enjoying building it and that is the most important thing.

Keep us posted on your progress but do not spent a lot of time on the forum or posting, as you have more important things to be doing.

Link below on how I built my homemade turntable in a month of so spare time after work, it may be encouraging.

https://ogrforum.com/...ra-027-layout?page=1

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Charlie

from Macon, GA

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