syringe pump
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Chemistry & Biology
- Licencja
- Creative Commons — Attribution — Noncommercial
syringe pump for 20 ml ( works also for 10/25 ml) ..., there are various marks of syringes - some can fit better than others … For gears 100 % infill, for other parts 30 % infill. It is first version - lots of space for improvement, but it works and all parts can be printed - ( also screws to attach step mottor m4? ). To control step motor i used code from here: https://ben.akrin.com/driving-a-28byj-48-stepper-motor-uln2003-driver-with-a-raspberry-pi/ - where True pumps liquid out ( down) and False pumps liquid in ( up), i did lower step_sleep to 0.001 . One rotation - 4096 step counts of step motor is in my case +- 3.8 ml of liquid. To get it work on raspberry pi 5 - you need to change gpio libraries with:
sudo apt remove python3-rpi.gpio
pip3 install rpi-lgpio --break-system-packages