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Posted

I considered a mechanism that would activate the switch rail when a monorail passes over it, similar to the switch rail on the original LEGO monorail.

Please check it out! :)

 

  • 2 weeks later...
  • 2 weeks later...
Posted
On 2/23/2026 at 11:51 PM, Masao Hidaka said:

I considered a mechanism that would activate the switch rail when a monorail passes over it, similar to the switch rail on the original LEGO monorail.

Very nice

  • 3 weeks later...
Posted

I Finially got new curved gear rack in hand.

And did some experiment for use monorail.

IMG_0685.jpgIMG_0686.jpg

This three combination is match rack gear with perfect backlash.

Left - Single 20t gear between two train wheel

Middle - Single 20t gear, two half bush, single round tile with hole between two reversed train wheel

Right - Single 16t gear between two 50951 tire with roller guard

IMG_0687.jpg

This two is work but both has bad backlash. Espically left one is very poor.

Left - Single 12t gear between two 80441 wheelchair wheel

Right - Single 8t gear between two 1L beam

IMG_0688.jpg

For maximum possible guide roller distance, If you use full thickness gear this is maximum.(By the way, 28t with that setup is work perfectly too.)

IMG_0689.jpg

Without gear, this is maximum possible distance.

Posted
13 hours ago, msk6003 said:

I Finially got new curved gear rack in hand.

And did some experiment for 

This is a cross-posting from General Parts Discussion, where the pictures are better. It's interesting but we don't need to see it twice. :-)

Posted
On 4/4/2026 at 2:50 AM, idlemarvel said:

This is a cross-posting from General Parts Discussion, where the pictures are better. It's interesting but we don't need to see it twice. :-)

As someone who rarely ventures outside of Train Tech I'm glad that something was posted here. But maybe a "FYI, see this thread" with a single tantalizing photo. Especially since that would keep the discussion in a single location. Ah, after searching I see it was a single post n a large thread

 

These new gear racks are probably worth their own thread

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