How to 3D-print the Rubin Model base at home

Bill of Materials

An overhead view of a device with a rectangular frame and four legs, labeled 'TURN MODE' and 'BOOM MODE'. Inside the frame, there is a circular dial or button.

Printed Parts

  • 1 Tray Insert (bowl)

  • 2 Top Frame halves

  • 4 Legs

Technical drawing of a small platform with four cylindrical supports, a rounded protrusion in the center, and detailed measurements in millimeters.

Printing Guidelines

  • 0.4 or 0.6mm nozzle

  • 0.2 to 0.3mm layer height

  • 15% Cubic infill

  • 3 Perimeters/Wall loops

  • 5 Top and Bottom Layers

  • Bed size required: Minimum 220mm x 205mm

  • Multicolor/Multibody: Optional

  • Supports: Enable supports on Tray Insert only and only on build plate.

  • Recommended Slicer Software: OrcaSlicer

Download STLs/OrcaSlicer Project: rubin_model_base.zip

Technical Drawing: rubin_model_diagram.pdf

Disassembled black and gray mechanical parts placed on a wooden table, including a square frame with cylindrical supports inside.

Assembly - Self Sourcing

The top frame can accept M3 heatsets for more durable repeated assembly and disassembly. If installing heatset inserts - the top frame halves have 8 total M3 threaded heatset inserts, which are installed by melting them into the frame half using a soldering iron.

A version of the top frame is also available where the screws will form threads into plastic. It will be a tight fit, but do not overtighten and strip out the plastic.

Secure the tray insert to the frame halves with (8) M3x8 Button-Head Cap Screws (BHCS). Insert the legs into the holes in the bottom of the frame halves, they are held in place by friction. If they are a little loose, you can wrap them with a thin layer of masking tape (or if self-printing, scale the leg model up a little bit in your slicer software and reprint.)