"O-Click": O-Gauge Brick Compatible Track

“O-Click”: O-Gauge Brick Compatible Track

Have you been running a battery powered O-gauge train while finding your brick village is slowly taking over? Want to keep with the nostalgia of the O-gauge while the track matches the theme of your village? Then “O-Click” track is here to solve your incredibly niche problem. 

“O-Click” is an O-gauge rail width with brick compatible ties. It snaps together using a novel self-tightening click system rather than the traditional Lionel FasTrack or brick style rail connection. O-gauge trains roll smoothly around this track. It is available in both 16-stud and 28 stud length straight pieces, 31” diameter turn (3 pieces for a 1/4 turn) and a 42” diameter turn (4 pieces for a 1/4 turn). 

The design has been optimized for standard 0.4 nozzles and 0.2 layer heights, while maintaining strength in critical areas with minimal supports needed. Built-in model supports ensure the click connect overhang is supported and the ties won’t lift off the bed during printing without glue. 

It has been tested in both PLA and PETG. PLA rails are rigid and the supports snap off easily. Usually no additional fitment work is required for PLA. PETG gives a little more flexibility if the track is going to be moved around. Supports need to be trimmed off, and the area for the click connection will need to be examined to make sure the click area is free from any leftover support material. Fit on the click mechanism is typically a little tighter on PETG as well, possibly requiring light filleting work with a utility blade in the interface to remove a small amount of material. 

The print profile is the standard 0.2 height profile with the following adjustments:

Walls: 

Wall Loops: 3

Embedding Wall Into Infill: Selected

Sparse Infill: Extremely important to the strength of the click system.

Infill@100%

Pattern: Rectilinear

Advanced:

Infill/Wall Overlap: 50%

Here are the weights and print times of the various model configurations to help you plan materials required and the time to build a loop.

Please let me know if this solves a problem you didn’t even know you had and if you have any suggestions for improvement! And follow me for other brick related designs coming in the future!

Change log:

12/15/25: Updated all print files to have painted brims based on feedback from anthonyg

The free print profiles here are for individual use only and commercial use is not authorized of this design.