Summary

Stimpack (or Stimpak) from Fallout 4, modeled from scratch in Blender.

In addition to the printed parts, you'll need a glass vial (12ml / 3 dram, 19mm diameter by 65mm long) filled with red liquid, some wire, a pin (I used a round-headed quilter's pin), and a printed face for the gauge (PDF included).

The original game model had a slightly bent clip on the end of the left arm. I've recreated this, but I've also included a "straight" version that mirrors the right clip.

I will add more photos and post-printing notes once I've painted it. Right now, the only photo shows it pretty much as the parts came off the printer, with no sanding or other finishing work apart from removing the brims.

Print Settings

Printer Brand: Ultimaker

Printer: Ultimaker 2

Rafts: No

Supports: Yes

Resolution: 0.12mm

Infill: 25%

Custom Section

I used 0.12mm layers, as the Ultimaker 2 does best with layers that are even multiples of 0.04mm. I did not use supports when I printed the gauge, and it shows in the pic of the unfinished model, so I'd strongly recommend using them.

I also urge you to print the tabs on the ends of the arms in their upright position, rather than laying flat, because that will print the layers along the curve -- meaning that if the part is flexed, it should bend somewhat rather than simply snapping immediately between the layers.