Vertex Project R5-Unit

Photo of final print with dowels installed. This model is one vertex on a large truncated octahedron.

For my vertex point of the collaborative truncated octahedron project I decided to model a scaled down dome (head) of one of my personal favorite types of Astromech droids seen in Star Wars, a binocular (two eyed) R5 unit. These R5 units are fairly uncommon in the SW universe and have only appeared twice in Star Wars movies for extremely brief periods of time.

Photo I referenced that depicts an Imperial binocular R5 unit next to a more typical 3-eyed R5 unit on the second Death Star. Image Source:
Initial sketch that is then revolved to create the main shape of the R5 dome. Just to make a quick note, I am going to refer to this droid head as ‘the dome’ because that is what this part of an astromech droid is commonly called in the Star Wars community regardless of the actual shape of the head.
Sketch used in an extruded cut to create the rectangular recessed areas on the dome. The resulting extruded cut was used in a 180 degree circular pattern of three instances to have this feature on the sides and rear of the dome.
Sketch created at the front of the dome to create the recessed area for the binocular eyes.
Rectangular sketch created in the recessed front of the dome. This was extruded in two directions to create the base of the binocular eyes that fits in a rectangular slot created in the dome later.
Circular sketches created and then extruded to begin creating the eyes.
Circular sketch extruded and then mirrored to the other side in order to create the thinner portions of the eyes.
Wider circular sketch created, extruded, and then mirrored to form the last segments of the eyes. These extrusions where then filleted on the tips to round out the eyes.
Yet another circular sketch created on the last segment of the eye. This was used to create the extruded cuts for the recessed areas on the eyes.
Sketch created to form the recessed wedges on the top of the dome. The wedge section of the sketch was used in an extruded cut on the top of the dome which was then implemented in a circular pattern of 8 instances at 360 degrees, thus forming the panels at the top of the dome.
Sketch created in one of the recessed areas on the sides and rear of the dome, this was revolved to create the little detail pieces that R5 units have in these recessed areas. This feature was of course implemented in a circular pattern to add it to the two other rectangular recessed areas.
Rectangular sketch that was then extruded and used in a circular pattern to create the ridges going around the smallest diameter near the base of the dome.
Rectangular sketch used to create the slot in the front of the dome for the binocular eyes piece.
Partial sketch around the top dome panels used to assist in breaking the top into sections for multi-colored printing.
Finished 3D model of the R5 unit dome. The vertex holes were created using a model that was combined with the finished dome in order to subtract the space for the dowels. The model used as the cutting tool was created using a tutorial in the UNH Intro to 3D printing course.
Basic technical drawing of the finished R5 dome for the vertex project.

Print settings:

Layer Height: 0.2mm

Supports: Zig-zag and generated automatically

Adhesion: Brim

Time for print: 7hrs 5mins for the main dome and 14mins for the separated binocular eyes piece

Filament usage: 96 grams in total (95g for the main dome and 1g for the binocular eyes piece)

Infill: 18%

Bonus stuff: A modified version of this dome is being developed as a laptop camera cover that will feature glowing eyes that implement 3mm LED fiber optic cables. Images coming soon!

Link to vertex and regular model on Thingiverse:

Link to Laptop camera cover on Thingiverse: coming soon!

Leave a Reply