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Project:Cupcake-o-Matic: Difference between revisions
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→A Better Extruder
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The Makerbot Cupcake CNCs from batch 6 came with a laser cut [http://wiki.makerbot.com/plastruder-mk4 Plastruder MK4]. To drive the filament a T2.5 timing belt gear was used, it had 17 teeth which would bite into the filament, however the teeth were blunt so could not get a good grip on the filament reliably. This lead to the extruder jamming mid way through a print. When the Plastruder MK4 came out it was a new design but it was quickly superseded by improvements from the RepRap project. | The Makerbot Cupcake CNCs from batch 6 came with a laser cut [http://wiki.makerbot.com/plastruder-mk4 Plastruder MK4]. To drive the filament a T2.5 timing belt gear was used, it had 17 teeth which would bite into the filament, however the teeth were blunt so could not get a good grip on the filament reliably. This lead to the extruder jamming mid way through a print. When the Plastruder MK4 came out it was a new design but it was quickly superseded by improvements from the RepRap project. | ||
These improvements took the form of the | These improvements took the form of the [http://reprap.org/wiki/Wade%27s_Geared_Extruder Wade's Geared Extruder], a simplified version of the Bowyer extruder. The Wades extrider is notable for it's use of a single mounting block, a stepper motor, two gears and an idler assembly. | ||
Replaced the MK4 Plastruder with a Gregs Modified Wade Extruder. Replaced the nichrome wire on the hot end with a heater block and power resistor. | Replaced the MK4 Plastruder with a Gregs Modified Wade Extruder. Replaced the nichrome wire on the hot end with a heater block and power resistor. | ||
