Gravitrax-Brick Adapter Set

This is a Gravitrax-brick adapter set. If you hold up a standard-sized Gravitrax spacer and a 2x4 standard-sized brick side by side, you can see that each piece is exactly the same height (9.6 mm), minus the hex ring on the spacer and the studs on the brick. This gave me the idea to design an adapter set that allows users to build a “brick tower” (or anything else you can imagine building) that interconnect Gravitrax and standard bricks. I did notice a few somewhat similar models on MakerWorld (ones that allow you to add bricks to the base layer), but I could not find any that allowed users to build interconnecting towers (i.e., utilizing the 9.6-mm size-match to turn bricks into “spacers” and then connect the bricks to Gravitrax components directly above the bricks). For the model you see here, I set up the top and bottom of each adapter piece to fit a standard-height 4x4 brick layer. I also added four extra 1x4 rows around the base adapter in order for users to "decorate" eac