Once again, thanks for your efforts & interest in this project.

Colour isn't an issue, tho I did read that different colours have slightly different mechanical properties. What colour(s) do you have?

Have new drawing nearly done for ring gear. Had to increase outer rectangle dimensions to make it mountable without machining a big chunk of ally to bolt it to.

Also been considering what else could be printed. Have drawn up planet carrier, the handle cranks and the main bearing supports but need to do some bending calcs to see if they're rigid enough. Will post new drawings tomorrow once completed and sanity checked. Reducing the components that need to be machined reduces the manufacturing costs dramatically.