Pulsar screw jams

[Kevin S]

Hi,

At our university we've been printing with a pulsar extruder mounted on a KUKA robot.

Very often the screw jams, it is not consequent, and happens from time to time.

Also when passing 17 RPM it ticks and jams.

Is there a way to fix this? 

The material is dried and suitable for granulate extrusion.

Also the recommended temperature zones are being used.