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... --- N Scale Turntable Stepper Motor Mounting ---

On this page we will prepare the stepper motor for mounting. The steps on this page and the next page go hand in hand so look at both pages and decide the order of events that works best for you. Before you can cut the support uprights on the next page you have to determine how long they need to be and that will be covered here. Some of the final mounting of the stepper motor shown here needs to be done once those supports are in place and you can rotate the bridge.

You will find a link to the shaft ( HERE ) but if it doesn't work Google ( 5mm x 100mm Straight Metal Round Shaft Rod Bars ).

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I started with a solid 5mm shaft connector but found the flexible one shown above to be a better solution. You can find it ( HERE ) or Google ( Flexible Couplings 5mm to 5mm NEMA 17 Shaft ).

You can find the stepper motor ( HERE ) or Google ( Stepper Motor Nema 17 Motor 42BYGH ).

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I'm showing how the stepper motor is held in place above but don't secure it with the plywood pieces until you have the uprights on as shown and you can rotate the bridge so that the motor settles into the correct position where there is no binding between it and the bridge. The slip ring is what will center it.

Above you can also see a mounting bracket attached to the stepper motor. I left it on but I'm not using it at this point. The motor seems to stay in place with no other mounting needed.

Next we will move onto the supports between the stepper motor mount and the bottom of the pit, which are shown above in the last picture.

You can find all the turntable files on my thingiverse.com account ( HERE ).

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