Goal: Spend 30 hours…just to save 20 seconds or so. Using a Funnel cup with a scale…it only takes 10 seconds instead :)

just a simple…90% complete Coffee bean Doser. this is my first time creating anything but a widget using a 3d printer. i would say if someone with actual cad skills spent 2 more hours on it, everything would fit together. Its still a good beginning for any project that requires weighing something and dispensing it out.

Print the auger piece out of TPU ( will crunch less ) and make sure to hand adjust it when screwing it on.

Features

-Button Press to dose the same amount of coffee.

-Adjust the amount of coffee to dose using the left hand dial

-Normal Scale Mode when not dosing coffee.

Electronics

-Raspberry PI Pico W with Arduino Software ( $4 - 6 )

-Rapsberry pi breakout ( $8 )

-Continuous rotation servo motor ( $13 )

-5v Power Supply ( salvaged from USB Power Supply - 5v, 2.5A )

-ruggedized button from adafruit ( $5 )

-Load Cell Weight Sensor ( $5 - 16 )

-16x2 LCD Display Module ( $10 )

-10k potentiometer ( $ 3 )

-10 wire ribbon cable ( for connecting all the electronics together )

Filament

-needs about 1100 grams of filament in order to print and about 20 - 25 hours to print

Arduino Sketch and other assembly images

https://drive.google.com/file/d/1WR5gqsRPjppUEzE5ojxNNbbYJ13_rwJ2/view?usp=sharing

Comment if you have any questions.