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WeighMyBru Pour-Over

A custom variant of the WeighMyBru² DIY espresso scale, redesigned for pour-over brewing with a custom 3D printed enclosure, a 1.3" SH1106 OLED display, and a 3kg load cell.

Credits

  • WeighMyBru² original project by 031devstudios
  • SH1106 display driver implementation by mlodedrwale — this build would not have been possible without their work on SH1106 support.

What's Different in This Build

  • Display: 1.3" SH1106 OLED
  • Load cell: 3kg load cell
  • Enclosure: Bigger body dimensions (140x100x29mm)

There are two sets of choices when printing this build — pick one from each.

Enclosure Mounting

Version Description Best for
Heat-set (not tested) Uses M3x5x4 brass heat-set inserts for threaded mounting Stronger, survives repeated disassembly
Self-tapping (tested) Screws drive directly into the plastic Simpler build, no soldering iron or heat inserts needed

Screen Cutout Fit

Version Description Best for
Normal (tested) Standard fit for the OLED screen Most printers
Loose (not tested) 1mm extra clearance on all sides If the screen is a tight fit on your print

Not Sure Which Fit to Use?

Before printing the full enclosure, print the display fit test first — it's a small piece that only takes around 20 minutes and lets you check whether the Normal or Loose fit works better for your specific screen and printer.

Always test before printing the full enclosure

Download the test print, check if your screen sits flush and stable, then choose your version accordingly. The full top plate takes much longer to print and filament is worth saving!

Test Print For
Display Fit Test - Normal Standard fit
Display Fit Test - Loose Loose fit

STL files for the test prints are in the /step/display-fit-test folder of this repo.

Getting Started

  1. Parts List — everything you need with links
  2. Flashing Guide — how to flash the firmware to your board
  3. Code Changes — what to configure before compiling from source