Looking Good

A project log for 3D Printer Extruder Remote Health Monitoring

Receive force sensor reports from the 3d printer extruder at regular intervals on your mobile device.

mark-heywoodMark Heywood 08/24/2014 at 22:370 Comments

Indirect Force Sensor Test Set-Up

So, the new indirect filament force sensor now piggybacks on the direct filament force sensor. The new sensor turned out to be light enough to be supported entirely by the PTFE bowden tube, so no extra bracket needed. The sensor will move as the Y axis moves but this should not effect the force readings too much.

The next step is to calibrate a new circuit, and then the readings can be taken to compare the two different load cell set-ups. Once I get some readings, I'll be first checking if the indirect force sensor is providing linear readings as with the direct force sensor or kitchen scales. 

You can see with the design of load cell that it should fit many extruder designs that use similar tube fittings like in the above picture.