Sends every other marble back on itself. This piece is particularly useful at he top of a track, so you can send the marble down two separate routes early without losing much height.
Laser cut plywood
3D printed parts
Magets, and laser cut silicon non-slip stickers (so it grips the vertical surface)
Instructional build video.
Build time: 15/20 mins
Paint brush and wood glue not included, but if you need them check my shop.