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Centi PET Re-Extruder: Expander Flange

by mechadense, published

Centi PET Re-Extruder: Expander Flange by mechadense Jan 13, 2012
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fitting to: http://www.thingiverse.com/thing:15514

Since the heating chamber was designed to have minimal steel volume and minimal surface area the screws are fairly close together. This complicates the easy and fast attatchment of different input devices (pet band drive / piston)

This is an interchangable flange adapter. The rectangular side (warm side) should touch the fiberglass-PCB isolation plates which lead to the heating chamber. On the Flat side (cold side) any conceivable input device can be mounted.


Avoid PLA. If you have no heated build plattform you may print the first vew layers in PLA to get the ABS to stick.

On my first attempt 240°C Was too cold for my white ABS to stick to itself. I had to lower the print-speed to crawling 28mm/s to avoid immediate failure. (40% hexagonal fill) At the end it ripped open along the circumference a little above the PLA ABS Interface. :(

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I like the idea of printing a few layers in PLA then continuing in ABS. Seems like it could be a good general solution to the bed sticking problem. PLA's pretty sticky so maybe you could use that technique to print anything on blue tape? Perhaps with a heated platform+two extruders this would be more doable... And you wouldn't have the oozing problem since the PLA extruder would be ONLY on for the first few layers.