March 2024

Be sure to bookmark for quick access to Maker Box reveal posts. is a digital catalog of filament from around the globe, curated with the purpose of helping people find the perfect colors for their project. We print and photograph every filament under the same conditions, allowing users to compare different colors directly. We also measure the color and report this as a hex color, and use that to calculate complementary colors, similar filaments, and even similar colors in other materials to help users perfectly plan their projects. We’re a hobby project and always growing through filament donations and partnerships, so keep checking back to find your favorite filaments!


  • Easter Fruit Chews
  • Trading Cards

Please login to view codes if you received this months UFO.

Subscriber @tsiolkovsky created a neat trading card holder for the top of the printer to hold the card for the sample you're printing with!
Download Card Holder



Inline Filament Dust Cleaners

I've used inline dust cleaners on and off for years, with some filaments I've also added a dab of oil - though oddly I haven't heard about either for years like I used to. When I saw these I thought they'd be a nice addition as I hadn't included them previously and they were cheap enough to include 2 in the box. While most people probably don't think about it, there's a lot of particles on filament - whether extra colorant (white filament always leaves titanium oxide on the sample machine), or dust from sitting on the shelf, or even being out in the open and collecting dust from your print room - these particles have the chance of building up in your nozzle and causing clogs. These dust filters can snap around your filament and wipe the filament clean as it passes into your extruder.
View on Amazon


+Nano version of the Maker Box received an ESP32-WROOM

Filament Scale

This project is fairly simple and is "mostly" plug and play. I don't think a video is necessary but if I get a request for one I will happily make one. Unfortunately a little bit of soldering is needed this month to solder the pins onto the HX711 board. 10 pins in total, or 8 pins if you want to skip B+ and B- since they're not used.


  • 5kg Load Cell
  • HX711 Amplifier Module
  • 128 x 32 OLED Display
  • 2 x 6700ZZ Bearings (10mm ID, 15mm OD, 4mm W)
  • 5 x M3
  • 2 x M5
  • 2 x M4
  • 10 x Female to Female Jumper wires

There are 4 wires for the HX711 to Control Board, 4 wires for the OLED to Control Board, and 2 wires to cut the female ends off (leave about 2 inches of wire on each) to use to add connectors to the 4 Load Cell Wires. You can also shorted the load cell wires as you see fit. Additionally, the pins for the OLED can be bent about 45 degrees if you find that they're in the way from the HX711 clamp.

Load Cell to HX711 Wiring:
Red to E+
Black to E-
White to A-
Green to A+

HX711 to ESP32 Dev Board wiring:
SCK to 18
D to 19

OLED to ESP32 Dev Board Wiring:
VCC to 3.3v
SCL to 22
SDA to 21

Files on Printables
Files on Makerworld
Filament Scale Code

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