Just another toy to keep your hands busy.
This one is customizable, so you're able to scale this thing up and down, tune the gaps for your printing skills and equipment, whatever ...
I included three examples as stl (their configurations are included within the scad source file):
- 20 mm (regular) - it takes 5 to 6 hours to print on my A6.
- 15 mm (small) - should fit better into a child's hand. I haven't tried to print this size, yet.
- 8 mm (ultra small) - 35 - 45 min. I just wanted to know what's possible. This is definitely not a beginner's choice. See https://www.thingiverse.com/make:474097 for some hints.
The decoration line can be used as a measure when to change the color, if you like to obtain a dual-color cube.
The red/black one and the tiny one in white is PLA, the green/transparent one is PETG (older model).
I included some helper models, that can be generated:
- cube - the entire fidget cubes readily assembled - this is probably what you came for :)
- hinge_test_vertical, hinge_test_bottom, hinge_test_top - two cubes and a connecting hinge. This allows to test the hinges in their various orientations without having to print the entire cube. The vertical one is the hardest - test this first.
- hinge, hinge_hole - a single hinge and its hole for whatever purpose.
- gap_inspection, gap_inspection2 - a cross-sectional view of two cubes and two hinges. It's only purpose is to check whether your customization will break something inside the cube. Version 2 gives a negative view of the surrounding gap with a corner opened to see all cross-sections.
- hinge_profile, hinge_hole_profile, hinge_gap_profile - these 2D profiles determine the shape of the hinge and its hole. The gap profile can be used to determine if the gap between the hinge and the cube will be well-formed.
- cube_profile - this 2D profile exhaustively determines the optics of a single cube's surface and edges
You definitely should also have a look at https://www.thingiverse.com/thing:2595224 and https://www.thingiverse.com/thing:2848678 . @austinvojta invested a lot of time in making his cube as printable as possible. He also provides lots of printing tips and solutions to typical pitfalls.
- Printer: Anet A6 with belt tensioners (X and Y) (highly recommended!)
- Orientation: Rotated by 45 ° around the Z-Axis (that's the only one that makes sense ;)
Cura 3.2.1 settings (Everything that's not default; some depend on the material you've chosen and some are completely irrelevant for the result):
- Layer Height: 0.2 mm
- Wall line count: 3
- Top Layers: 6
- Bottom Layers: 6
- Top/Bottom Line Directions: [0,90]
- Ignore Small Z Gaps: disable (otherwise Cura creates odd layers and bondings between the hinges and the cubes - hard to see in the slicer)
- Infill Density: 20 %
- Infill Line Directions: [0,90]
- Printing Temperature: 205 °C
- Build Plate Temperature: 40 °C
- Build Plate Temperature First Layer: 60 °C
- Retraction Minimum Travel: 3 mm (workaround to speed up printing when combing mode is off)
- Print Speed: 50 mm/s
- Infill Speed: 50 mm/s
- Travel Speed: 75 mm/s
- Number of Slower Layers: 2
- Combing Mode: Off (prevents under-extrusion after travel but is way slower)
- Regular Fan Speed: 50 %
- Minimum Layer Time: 10 s
- Build Plate Adhesion Type: Skirt
- Skirt Line Count: 2
- Skirt/Brim Minimum Length: 500 mm (cleans the extruder and allows to level the bed during run time)
Break it loose
The hinges typically stick a bit and should get loose with some gentle force. The vertical ones are the hardest.