Airtripper Bowden Extruder BSP Edition
by Airtripper, published
#####Extruder Filament Drive Gear Review & Benchmark
![Drive Gear Review & Benchmark](http://airtripper.com/wp-content/uploads/2013/11/mk8-filament-drive-gear-pulley.jpg "Drive Gear Review & Benchmark")
Airtripper Direct Drive Bowden Extruder BSP Edition
Designed for 1.75mm Filament and Nema 17 Stepper Motor
This is the latest edition of the airtripper extruder series with many improvement tweaks and now is sporting a BSP fitting filament out feed socket.
The extruder has worked well with the MK7 drive gear and was able to push more than 3kg of force with stepper motor type SY42STH47-1684A.
I've not posted any information about the latest extruder design, however, the previous extruder design still provides a good reference.
Recent Commentsview all
Hmm, reprapworld, I'm currently using Repraper filament bought through filamentenmeer.nl however, and I'm very happy with it. Extrusion temp 200º. The extruder is working quite well now, however it flexes when retracting and extruding. So I'm still thinking of designing my own extruder in the long run ;)
Currently printing with Natural PLA from repraper and it's doing very wel. How consistent is the thickness of the reprapworld filament and did you get the special 'Dutch' variant, or the usual one? Oh, and which color?
I always expected a bevel on stepper motor axles, so the set screw will be an issue on axles without a bevel.
Grounding a bevel yourself should give you the clearance you need if you can get it deep enough. I'm sorry you had to go to so much trouble, but once you get MK8 gear working, the trouble will soon be forgotten.
I just got another delivery of PLA filament from reprapworld and so far it has been perfect for bowden extruders and heated window glass beds. It needs to be extruded at 220 C for best layer bonding and there is no string clean up after printing. It might be worth you trying this filament out if you are looking for better PLA than what you use.
Liked Byview all
Give a Shout Out
*If you are looking to upgrade from the previous version you would only need to change the extruder main body.*
Skeinforge and Slic3r have been used but Skeinforge seems to provide the best results.
* Infill Solidity (ratio) can be between 0.2 and 0.3
* Layer Height 0.25mm
##Non-printable Parts List
*The parts below may be available as a kit from ebay; search airtripper to find the listing.*
More about the assembly can be found here: airtripper.com/1764/airtrippers-direct-drive-bowden-extruder-v3-bsp-edition/
* 2 x M3 Washers
* 4 x M3 Full Nuts
* 1 x M3 25mm Socket Cap Screw
* 2 x M3 30mm Socket Cap Screw
* 1 x M3 6mm Socket Button Head Screw
* 1 x M3 10mm Socket Button Head Screw
* 2 x M3 45mm Socket Cap Screw
* 1 x 608ZZ Ball Bearing
* 1 x 6mm ID Rubber Hose
* 1 x 1/8" 4mm BSP Push Fitting
You must be logged in to post a comment.