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Points Motor for G Scale with Spring  – Modèle 3D imprimable de Thingiverse Thingiverse

Points Motor for G Scale with Spring

par dagnall53
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I was concerned that my previous rack and pinion points drive designs needed precision servo setting to avoid straining parts.
Also, accidental train traffic "against" the points can derail trains or damage the drives.
So this design includes springs that allow the points move in a similar way to the original LGB mechanical manual drives.
https://youtube.com/shorts/MsCF-XoNr_I

Compression Spring, are: 304 Stainless Steel,4mm OD,0.4mm Wire Size, 20mm Free Length, (available Amazon when I looked)
Screws are #4 4mm countersunk for the lid.
Use a 2mm screw if you have one, for the drive link to the actual points.

The full set of parts includes gears with varied "hex" holes to match your servo and printer.
I print at 0.2mm layer height and with horizontal expansion of -0.1mm.

2025: I have added the source Fusion 360 file and also step file if you wish to adapt the body for different servos or internal electronics.


Source
Thingiverse
Ce qu'il faut pour imprimer: Intermédiaire Confiance faible
Pourquoi ?
couches de 0.20mm
Monobloc Visserie requise
Supports 1/3
Assemblage 0/3
Réglages 1/3
Taille du plateau 0/3
Post-traitement 1/3
Imprimante
FDM / FFF
Format de fichier
STL
Matériau
Carbon Fiber
Hauteur de couche
0.2 mm
Post-traitement
Visserie
Logiciel
Cura, PrusaSlicer ou similaire
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