ETO Plus Plus

Description

ETO++

This puzzle is an Edge-Turning Octahedron, with two levels of bandaging applied to the parts.  It has the same axis system as an edge-turning cube, with a depth-of-cut that makes it similar to the Curvy Copter III, but with some of its pieces cut in new ways.  Fun to solve, and incredibly stable.  You can read more about this puzzle at the Twisty Puzzles Forum.  The ETO++ is the follow-up to my ETO+, which has only one level of unbandaging.

To build this puzzle, you will need:

• The model on this page.

• 12 screws around 5/8" (~16mm) long.  This puzzle is designed for #2-56 screws, but you can use M2 screws or enlarge the holes to accommodate M3 screws if you prefer metric.

• A set of stickers from Chewie's Custom Puzzles.

If you would prefer a fully-assembled and stickered copy of this puzzle, please fill out the form on my website.

WARNING: This puzzle's parts are printed in a grid container, which introduces some risk to the dyeing process, as the grid-container makes it harder to clean the powder away before dyeing the parts. The i.Materialise team wants me to make it clear that they cannot guarantee the parts will be completely black.  (Though my results so far have been awesome!)