Ambiguous Springo // Circle to Square Ambiguous Cylinder Illusion

ambiguous-springo-addsupports.stl

9 Shapes

9 shapes.stl

Cube Pig

This is from a set of cube animals I'm making for my girls to play with. Eye sockets fit 10mm googly eyes, which come cheap by the 100 or so from your online retailer of choice and are easy to hot glue into place. Use only with supervision.

Image printed at .2mm, 10% infill, with supports, face up.

4x4 Tsugite Cube Puzzle

4x4_White.stl

Chunky Block Drip Tray // 190mm

190x25_ChunkyBlock_120mmHole.stl

Slay the Horrific Cubimal!

cubimal.step

Minecraft Chiseled Sandstone

MC_ChiseledSandstone_Creeper.stl

Aurebesh Calibration Cube

20mm calibration cube, but "X,Y,Z" replaced by Aurebesh alphabet.  Just nerdy fun for Star Wars fans.

Borg Cube! (No Need for AMS, or Supports!)

Borg Cube 6 ( Grey ).stl

Cube Puzzle nr 3.

Cube_puzzle_nr3_Piece_1.stl

Auxetic Cubes // 18mm 22x22 Stacked

Auxetic Cubes 18mm 3x3 stack.stl

Donut Factory Puzzle (Deconstructed) // 2x2 Twisty Marble Puzzle (24mm inner cube)

What's better than a donut? _SIX donuts!_

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There's a lot going on in the Donut Factory. Twisting, spinning, snapping... the feel is satisfying, but trying to solve this tricky puzzle might leave you frustrated!

This 'Deconstructed' version is the same as the original, but with a sleek, refined exterior

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**_Assembly_**

This puzzle is built around a tiny [24mm 2x2x2 puzzle cube](https://speedcubeshop.com/products/eastsheen-mini-2x2-keychain-cube?variant=40210339659889). You will have to remove the keychain part.

Print 8 copies of the included STL. No supports are required, but the overhangs may warp a bit on some printers, so you may want to include a wide brim and increase Z-retraction height for travel moves in your slicer settings.

After printing, use flush cutters to remove the brim and flat bottom.

Magnets are optional, but highly recommended since they improve the puzzle action and make assembly easier as well. You will need 48 3mm x 6mm neodymium magnets. I used E6000 adhesive to glue them into place. Each face has 2 magnets. Make sure the left holes all have the same polarity, and the right holes all have the opposite polarity. Also make sure the magnets are flush to the face. It can help to use the corner of a table or some tool to press the magnets into place. Allow the glue to dry before moving forward.

Next, glue 7 of the 8 sections onto the internal 2x2 cube. Use only enough adhesive to connect the print to the corner of a cube. If too much glue smushes out, your puzzle may not rotate!

Once the 7 parts are in place, load up the marbles. This puzzle was designed for use with these 14mm ABS no hole beads (true dimensions closer to 13.6mm). The easier way to add the marbles is to rotate individual halves 22.5 degrees so the tracks form an S-bend, so you can add all the marbles of one color (8 marbles per ring). Watching my assembly video might make this easier to understand!

After loading the 3 rings opposite of the missing piece, fill the top rings, including the final corner, and then glue that into place. 

The magnets will help hold the parts together while drying, but I like using [0.25" x 4" Grifiti Silicone Bands](https://amzn.to/45QcKz6) to compress the parts as well.

Once the glue is dry, you can remove the bands, and give the puzzles some good twists to rub off any excess E6000 between the faces.

That's it. The Donut Factory is complete!

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**_Sources for Non-printed Parts_**

**24mm 2x2x2 Cube**
- [Eastsheen Mini 2x2 Keychain Cube](https://speedcubeshop.com/products/eastsheen-mini-2x2-keychain-cube?variant=40210339659889)

**14mm no hole ABS beads**
- [eBay](http://bit.ly/PuzzleBeads)

**or these Chinese Checkers Beads on**
- [Amazon](https://amzn.to/3byXlsV)

**6mmx3mm Neodymium magnets**
- [eBay N52](https://ebay.to/3kMB1A4)*
- [eBay N35](https://ebay.us/iHdF18)
- [Amazon](https://amzn.to/3Qtm6f6)

*Since this puzzle uses so many magnets the N35 strength ones are sufficient. N52 might be slightly overkill and pricey

**E6000 Craft Adhesive**
- [Amazon](https://amzn.to/3OHX22J)

**Silicone Bands for Assembly**
- [0.25" x 4" Grifiti Silicone Bands](https://amzn.to/45QcKz6)

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_Alright, get to work. These donuts aren't going to make themselves!_ Enjoy :)

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Ambiguous Springo // Circle to Square Ambiguous Cylinder Illusion

9 Shapes

Cube Pig

4x4 Tsugite Cube Puzzle

Chunky Block Drip Tray // 190mm

Slay the Horrific Cubimal!

Minecraft Chiseled Sandstone

Aurebesh Calibration Cube

Borg Cube! (No Need for AMS, or Supports!)

Cube Puzzle nr 3.

Auxetic Cubes // 18mm 22x22 Stacked

Donut Factory Puzzle (Deconstructed) // 2x2 Twisty Marble Puzzle (24mm inner cube)

H-Cube

Cube Bird

Pyramid Puzzle Nr. 3

Pyramid Puzzle nr. 2

Pyramid Puzzle Nr. 1

Mosaic Planter

Cube Tomato Mold v.2

Cube Solid