Ten commandments of 3D printing

Thislarge key chain contains a set of commandments and principles about 3D printing that you may accept or not. If you don't like these commandments,create your own using the rotating rings keychain. The outer rings are fairly loose, i.e. are meant to be taken out and in.

Contents from outer to inner ring:

• TEN COMMANDMENTS AND PRINCIPLES OF 3D PRINTING
• Calibrate well for the first layer
• Keep an open mind, be creative.
• Create supportless models
• Honor other ideas and designs
• Create assembly free
• Learn from others
• Make customizables
• share objects

• share code This thing is also an endurance test for your 3d printer. So far, I only tried two medium quality prints with 0.15 layers and they required between 13 and 14.5 hours print time.

  Included is also a low poly version. A smaller smaller version has more rings and a medium resolution. Its text is a bit different (see source below). I printed neither one of these.

  Print Settings

Printer:

Felix TEC4.1

Rafts:

No

Resolution:

25%

Filament: Cheap PLA radioactive crocodile green

Notes:

Other plastics than PLA may require more spacing between rings. I suspect that this is the case for PETG, go for double extrusion width or more.

Post-Printing

Make it smooth

If you use low quality print settings, you may have to break apart some rings and smooth some surface areas.

Do not remove the model from the print bed while it is warm. Circles may become distorted.

Create your own

Use OpenSCAD.

To create your own 10 commandments, you will have to install OpenSCAD on your computer and change items in just one line of code. Alternatively use the 2018 development edition with its customizer.

The following module call was used for the model in the picture.

print_part ( radius = 51, height = 20.5, spacing = 0.4, rings_n = 13, eyelet_default_type=true, eyelet_wall_w = 12, eyelet_hole_w = 6, eyelet_d = -3, eyelet_l=0.7,text = ["TEN COMMANDMENTS AND PRINCIPLES OF 3D PRINTING", "Calibrate well for the first layer", "Keep an open mind, be creative.", "Create supportless models", "Honor other ideas and designs", "Create assembly free", "Learn from others", "Make customizables", "share objects", "share code"], text_d = 1.5, letter_h = 8, letter_t = 5, font_s = 0.99, skip_rings = 0, first_ring_only = false, circle_resolution=1);

Two other variants are:

// low poly version
// print_part ( radius = 51, height = 20.5, spacing = 0.7, rings_n = 13, eyelet_default_type=true, eyelet_wall_w = 12, eyelet_hole_w = 6, eyelet_d = -3, eyelet_l=0.7,text = ["TEN COMMANDMENTS AND PRINCIPLES OF 3D PRINTING", "Calibrate well for the first layer", "Keep an open mind, be creative.", "Create supportless models", "Honor other ideas and designs", "Create assembly free", "Learn from others", "Make customizables", "share objects", "share code"], text_d = 1, letter_h = 8, letter_t = 5, font_s = 0.99, skip_rings = 0, first_ring_only = false, circle_resolution=10, font_resolution=10);

// medium size, medium poly version of 10 commandments
print_part ( radius = 40, height = 20.5, spacing = 0.4, rings_n = 14, eyelet_default_type=true, eyelet_wall_w = 12, eyelet_hole_w = 6, eyelet_d = -3, eyelet_l=0.7,text = ["TEN COMMANDMENTS OF 3D PRINTING", "Calibrate well for the first layer", "Keep an open mind, be creative", "Create supportless models", "Honor other designs", "Create assembly free", "Learn from others", "Customizables !", "share objects", "share code"], text_d = 1, letter_h = 8, letter_t = 5, font_s = 0.99, skip_rings = 2, first_ring_only = false, circle_resolution=5, font_resolution=20, middle_hole_ratio=0.3);

The included scad file is set to use and generate the version seen in the picture. Scroll down to the end. Lettering and smooth rings are very CPU intensive. Compilation on agood PC takes about 15 minutes. It may take much longer on a weaker machine (e.g. my XPS-15 [email protected] laptop on battery power took 40 minutes using little CPU power). If you cannot wait, then work with less polygones.Circle resolution ($fa) = 10 also will print if the spacing is a bit larger, e.g. 0.7.

If you change contents (text parameter), use theskip_rings parameter to examine inner ring contents. Then, in OpenSCAD click on View->Back.

Models that are not loose require (roughly) a radio of height/radius = 1/2, i.e. the width should bemax. 4 times as wide as high.

Warning: I may not update this thing since it's just an example of something that you can customize to your needs.