Filament quality measurement

Local company had a machine producing filament for 3D printers and needed a solution to measure the deviations in the produced spools of filament. The solution also included serial number tracking of each spool.

The measurements

The concept was to use prebuilt measuring unit, connect it with raspberry pi through serial interface and store the measured data to mysql server.

Spool tracking

There was a custom mechanism used for the spooling, so we only added a pressure switch that would be pushed when spool was full and connected it to the raspberry pi. The raspberry pi would tag the given spool with a serial number and print it through connected printer.