About this 3D model
Sort of self explanatory, has a hole on the back to attached to Legoish size pegs. Printed on Bambu X1C PETG, 0.08 layer height with a 0.4 nozzle. PETG very tight fit with shrink you may wish to scale up to 100.5% PLA will probably fit nicely at 100% Added Smooth version for printing face down with Bambu AMS or whatever MMU you happen to have and included Fusion360 f3d file