Huw Millington name may not ring any bell for you at first thought, but if you are the LEGO kind of fan who already have attempted to digitalize a LEGO creation, you certainly already have used Huw website without noticing it. Huw is indeed the creator of www.brickset.com, which became over time the primary reference on LEGO sets on the internet and a central LEGO parts database. Aside maintaining Brickset site and database, this English adult fan of LEGO is also spending time designing very nice GBC modules that you can discover onto Planet GBC.
Is there any instructions for your Upper Rainbow ZigZag module. I built one similar to yours but doesnt function as well as yours.
hello Chad Roscoe,
not specifically, but you have free instructions for the module Passilos, which is roughly equivalent:
https://www.planet-gbc.com/gbcmodule-fernandoq-pasillos/