Thingiverse
G scale points motor
von BrainHunter
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Here I designed a points motor for LGB turnouts. Other g-scale brands might work too.
It is mountable with all turnouts on both sides of course. Unlike many other 3d printable turnout drives this one allows to be pushed open by the train wheels like the original from LGB (at least the manual one).
The assembly of the thing is quite easy:
Cleanup all the parts from errors if your printer is not that precise. At least i have to do this step...
To mount the pinion on the servo i use a hot air soldering iron to warm up the inner of the pinion and then press it on to the Servo. With this technique the outer part of the pinion won't get deformed. Alternative 1: you can try to drill the hole a tiny bit undersized and press it on the servo with Force. Alternative 2: Superglue but this can have disadvantages if you have to adjust ;-)
Then try to dry fit all the parts without the spring. They should all move freely however not too slack so they won't disengage. The two levers are screw
It is mountable with all turnouts on both sides of course. Unlike many other 3d printable turnout drives this one allows to be pushed open by the train wheels like the original from LGB (at least the manual one).
The assembly of the thing is quite easy:
Cleanup all the parts from errors if your printer is not that precise. At least i have to do this step...
To mount the pinion on the servo i use a hot air soldering iron to warm up the inner of the pinion and then press it on to the Servo. With this technique the outer part of the pinion won't get deformed. Alternative 1: you can try to drill the hole a tiny bit undersized and press it on the servo with Force. Alternative 2: Superglue but this can have disadvantages if you have to adjust ;-)
Then try to dry fit all the parts without the spring. They should all move freely however not too slack so they won't disengage. The two levers are screw
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