Edit post

Edit your reply below.

Post Body
Enter your post below.
I don't think a stepper motor would work. The rails must align probably within .015 to keep from derailing when going aboard or leaving the bridge. As well as my Bowser TT, I built a Diamond Scale TT with indexing for a club I belonged to. I left the club before they ever got the indexing up and running. However the system operated with a geard down motor. An indexing arm was attached to the pivot and below the TT and had three contacts. When the appropriate track was arrived at one of the two outside contacts slowed the motor down. Once the center contact was reached, the motor was stopped. I was doubtfull about the workings of this system, due to the accuracy needed to stop the bridge tracks aligned with what ever track was chosen. I have seen other indexing systems for $300.00 which use electric eyes or LED sensors. Aligning by eye is a viable alternative. I'm surprised more turntable builders haven't put in their tw cents here.
Tags (Optional)
Tags are keywords that get attached to your post. They are used to categorize your submission and make it easier to search for. To add tags to your post type a tag into the box below and click the "Add Tag" button.
Add Tag

Update Reply

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Model Railroader Newsletter See all

Sign up for our FREE e-newsletter and get model railroad news in your inbox!