Lego Monorail Track Point/Switch Y + Left + Right

This is my remake of the classic auto-switching lego monorail switches with some useful additions like Y-switches.

required non printable parts per switch: 

• 6x or 7x m3x6 flathead bolt (6x for the Y switch, 7x for Left or Right)

         Aliexpress link: https://aliexpress.com/item/1005006180128211.html

• 1x 3mm (or 2.5mm) height x 8mm OD x 5mm ID mm ball bearing (MR85ZZ)

         Aliexpress link: https://aliexpress.com/item/1005007212049347.html

required printed parts:

• Lego Monorail Track Point ***** - All Small Parts Arranged
• Lego Monorail Track Point ***** - Top
• Lego Monorail Track Point ***** - Bottom
• Lego Monorail Track Point ***** - Top Rack*

*Lego Monorail Track Point ***** - Top Rack needs a pause just before the top rack part starts to print, do this in the slicer by rightclicking the layer slider in the slicing preview. In this pause you need to push "Lego Monorail Track Point ***** - Top" onto the printed holder on the buildplate, so it is fully pressed down in the holder. Resume the print after that. Do not use any support material on this part.

This is a video of that process:

All other parts need auto supports - only on buildplate.

Here is how you assemble the Y Switch: 

For it best functionality print it slow enough that the print is glossy, this will reduce friction compared to it being printed too fast and looking matt.

If the top piece does not stick to the holder in “Top Rack”, there is a parameter in the Fusion360 f3d file, where the diameter of that stud can be adjusted, normally you don't need to change this.

There is also a shrink parameter in Fusion360 f3d file, where you can adjust the shrink ratio on the rack part of the “Top Rack” file, only do that if the rack extends out over the main track piece, normally you don't need to change this.

I have included some pictures of possible layouts in the images here.

If you print one, make sure to post a picture of it in the makes section, I like seeing them and you get Prusameters.

Also check out the rest of my monorail designs, including motors, stanchion and track:

https://www.printables.com/@cbrick/collections/2018360