3D Printing

3D Printed Parts

There's a total of 28 parts the need to be printed. They're listed below in a table. The d2m-spike-face.stl part will need to be printed 18 times. The d2m-frame-a.stl and d2m-frame-b.stl parts are not the same / duplicate of each other. d2m-frame-a.stl features an opening for the d2m-led.stl part.

d2m-pomel.stl

The "butt" of the handle. The pushbutton goes here.

Print in any material.

d2m-handle.stl

The battery, Adafruit Trinket and JST Switch breakout goes in here.

Printed in Wooden PLA Filament.

d2m-rod.stl

The rod connects to the handle and the cap.

Print in any color filament using a large brim for better bed adhesion.

d2m-cap.stl

The cap is glued to the LED holder and connects to the rod.

Any color filament.

d2m-led.stl

Holds NeoPixel Jewel and is glued to the cap.

Translucent PLA

d2m-shell.stl

This is the icosahedron shell. It should be printed in white or transcluent PLA to diffuse the NeoPixel LEDs.

Translucent PLA

d2m-frame-a.stl

Half of the frame that is glued to the outside of the icosahedron.

Printed in Steel PLA filament.

d2m-frame-b.stl

Second half of the frame that is glued to the outside of the icosahedron.

Printed in Steel PLA filament.

d2m-spike-face.stl

Print 18x of these. Glue onto each side of the icosahedron - exept for the top face.

Printed in Steel PLA filament.

d2m-spike-top.stl

Bigger than the spike-face part, ment to go on the top face of the icosahedron.

Printed in Steel PLA filament.

Reorient Parts Flat on Bed

Do not print the parts "as-is". You'll need to reorient the parts so they're flat on the bed. Use your best judgement so they do not require any support material. Most slicing programs will allow you to select a face and place flat on the bed of the 3D printer. 

Large Parts

Some of the parts, such as the rod and handle are fairely large and may not fit on the bed of every 3D printer. these could optionally be printed in halves and glued together.

Support Material & Rafts

Although there are no support material or rafts required, I do recommened adding some brims to the parts for best bed adhesion. The d2m-rod.stl file is a rather tall part (180mm) and could easily topple over while printing, so a large brim can help keep it on the bed of the 3D printer.

Post-Processing & Finishing Techniques

I printed the spikes and the d20 frame halves in Proto Pasta's steel composite PLA. This material can be sanded down and polished using a rock tumbler or polishing compound. The only other parts the were sanded down was the rod. This was sanded and spray painted with a nickel / silver color, which gave it a smooth finish.

Download & Remix

If you're interested in making changes to the design, the source is public so you can download it the original in many different formats such as IGS, STEP, SAT, Google SketchUp, etc.

This guide was first published on Sep 25, 2016. It was last updated on Sep 25, 2016.
This page (3D Printing) was last updated on Jul 15, 2020.