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Our design utilizes printable parts in combination with a normal drill as auger and an additional bearing. All parts can be easily sourced and are quite cheap. | Our design utilizes printable parts in combination with a normal drill as auger and an additional bearing. All parts can be easily sourced and are quite cheap. | ||
===Auger housing=== | ===Auger housing=== | ||
[[File:Claystruder-2-housing.jpg|thumb|right|Auger housing]] | [[File:Claystruder-2-housing.jpg|thumb|right|Auger housing]] | ||
The auger housing is completely printable. How well it works with abrasive media is not yet clear and has to be tested. Alternatively it can be made from alloy or other metals. The auger housing takes a normal 5mm drill as auger. On top the drill is fitted into a 105 2RS bearing. | The auger housing is completely printable. How well it works with abrasive media is not yet clear and has to be tested. Alternatively it can be made from alloy or other metals. The auger housing takes a normal 5mm drill as auger. On top the drill is fitted into a 105 2RS bearing. | ||
The housing is designed with G1/4 threads for the nozzle and the material feed. G1/4 connectors to almost anything are widely available. | |||
===Testrun=== | |||
The testrun went well, a constant amount of material was extruded. It's important to note that the air pressure shouldn't be set to high as at some point the material will be pushed through the auger by the pressure alone. The next test should be made with a real stepper motor and the right nozzle. | |||