Review on Wooden Roller Coaster Marble Run Puzzle - ROKR 3D Mechanical Model For Self-Crafting, Decoration, And Educational Gifting by John Bourgeois

My review is for the "marble squad” version of the kit.This is a complex kit that works surprisingly well for something with 8 metal pieces and hundred of plywood bits.The design is very thoughtful and a lot of work went in to designing something that’s difficult build wrong:* every piece has its pet number etched *on* the part so you can identify it even if you pop it out too early* all identical pieces have the same part number making it easy to keep parts sorted* lots of pieces either can’t fit when flipped over, or are symmetrical so it doesn’t matter* subgroups have little labels etched on them so they’re easy to identify when you need them* the smallest pieces, the tiny pegs, all have spares includedMy few minor tips:* the laser cut wood can be harder to pop out with your fingers, an exacto knife might be useful here* the included tool can be used to slip the little plastic fairings on the steel shaft.

Otherwise this step is quite difficult!* use the included wax liberally every step where it’s indicated on the instructions!*dont worry too much if the gearing doesn’t look perfectly true in the first stages of assembly, the whole thing gets more rigid once it’s completed and the stair stepper particularly feels quite janky until the bottom pieces go in.——-It’s a really lovely kit, I’ll definitely try another ROKR kit in the near future