Saturday, March 21, 2009
Thermoplast Extruder Version 2.0 Released
The Thermoplast Extruder Version 2.0 - the new pinch-wheel design - has been released. It has these advantages:
- It can be driven faster than the older screw-driven extruder
- It has fewer parts (both reprapped and added from outside)
- It is easier to make
- It can be controlled more precisely and simply
- It can be reloaded while it is working without interrupting a build
- It should be more reliable (only time will tell...)
Labels: extruders
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Last time you blogged about the stepper driven pinch wheel extruder, you said that the Arduino didn't have enough memory to run the software. I take it the code has been streamlined since then?
Thank you perfect timing!
I await my delivery of ABS orderd last week.
If you are using RRRF drive belt read this for
Free drive belt gears for Z axis
I await my delivery of ABS orderd last week.
If you are using RRRF drive belt read this for
Free drive belt gears for Z axis
I'd also like to know about running this with an Arduino. This is awesome though, I've been waiting for something better/simpler than the screw driven extruder.
Twinsen/CupCake CNC - should do; check with Zach on the CupCake extruder mountings. This assumes two M5 screws in line with the extruder 33 mm apart, which is the standard RepRap X carriage.
Corwin/Cameron/Arduino - yes, the code now runs on both the Arduino and Sanguino. Turns out I just needed to tidy it up a bit. I haven't done extensive testing on the Arduino yet, though - I hope to do that at the end of next week (Ed and I are moving RepRap to a new university lab at the moment...)
Corwin/Cameron/Arduino - yes, the code now runs on both the Arduino and Sanguino. Turns out I just needed to tidy it up a bit. I haven't done extensive testing on the Arduino yet, though - I hope to do that at the end of next week (Ed and I are moving RepRap to a new university lab at the moment...)
yes, this should work with the cupcake CNC. we'll be launching with the lasercut plastruder which this design was based on.
the problem with this design is that the stepper motor shaft is hard to make. we use a low-rpm, high strength DC motor with a timing pulley. the pulley just bolts on to the shaft of the motor, so its super easy.
they're both pretty much the same thing though. =)
the problem with this design is that the stepper motor shaft is hard to make. we use a low-rpm, high strength DC motor with a timing pulley. the pulley just bolts on to the shaft of the motor, so its super easy.
they're both pretty much the same thing though. =)
Actually, sticking a gear on instead of messing wit the shaft is an option on this one too. See http://reprap.org/bin/view/Main/ThermoplastExtruder_2_0#Adding_a_small_gear_wheel
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