EWEE, The first 3D printed fully automatic herb grinder

thingiverse

This is a fully automatic 3D printed herb grinder that mixes all of your favorite herbs together and puts them into a prerolled cone. After use, the machine will clean itself with three fans. If you want to build one yourself, be aware that it's a difficult project. For reference, it took me about half a year to design, tweak, and program it. Cones used for this machine are J ware Kingsize (30mm x 109mm). Please note that this is not an easy project. You need to know how to read .ino files to change the polarity of motors if they're turning the wrong way. Furthermore, you'll be doing a lot of soldering. If you're ready to proceed, click on the "I made one" button. More questions about the machine's appearance? Click on the link below: https://www.youtube.com/watch?v=j6G5QpoI_B0&t=3s Mind to buy me a beer! What you need (easy variant without fans and LEDs): About 15 bolts, 1 nut, and 2 washers. However, I forgot which size they were, so please check with a caliper for the correct bolt size. 1x Grinder: Disassemble the handle pin. https://www.aliexpress.com/item/32954675444.html 2x Servo (Open servo and make it move freely 360 degrees, two wires coming out instead of three). https://www.aliexpress.com/item/32854187745.html 2x Bearings for the mixer. https://www.aliexpress.com/item/32897974461.html 1x Button self-release (control switch). https://www.aliexpress.com/item/32867071630.html 1x Button self-locking (main switch). https://www.aliexpress.com/item/32676526568.html 2x Indicating LEDs (Blue, 6V, 6mm dia.) (Used for visualizing grind mode). https://www.aliexpress.com/item/32890900906.html 14x Magnet (For door and lid). https://www.aliexpress.com/item/32866041091.html 1x Arduino ATMEGA32U4. https://www.aliexpress.com/item/32952028063.html 2x Motor and Fan Drive Unit DC (Possible with 1ea., easier with 2ea.). https://www.aliexpress.com/item/32849246440.html 1x Battery pack (I replaced it with a 6V NiMH battery for longer use). https://www.aliexpress.com/item/33013820231.html 1x 9g servo for opening the door. https://www.aliexpress.com/item/4000595327297.html Optional: 1x Led strip (For inside the door, cut USB port to have anode and cathode visible). https://www.aliexpress.com/item/32952790418.html 2x Mixer blowout fans. https://www.aliexpress.com/item/32998307611.html 1x Funnel blowout fan. https://www.aliexpress.com/item/32817634142.html 1x Voltage reducer if NiMH battery is used. https://www.aliexpress.com/item/32960698360.html