Large Volume Paste Extruder

This extruder is designed to push a large volume of paste trough a bowden-style tube and into your choice of nozzle. It uses a stepper driven piston to push the paste making it easy to control using your current stepper controller (i.e. ramps, rambo, etc.) I designed the nozzle to mount onto the cap of a inkjet refill bottle. Stay tuned as I will update the nozzle to be a bit less part specific. Enjoy!

Video: https://www.youtube.com/watch?v=f6YL5gFNG1g

In addition to the attached printable parts, you will need:
3 x 8mm nuts
2 x 8mm washers
1 x ~400mm x 8mm threaded rod
1 x 350mm x 1.5in sch. 40 PVC pipe
1 x 1/8in NPT hose clamp
1 x 1/4in air tubing (as long as you need)
1 x 10mm M3 screw and nut
2 x 608 skate board bearings
3 x 3in 6-32 screws
3 x #6 washers and nuts
6 x 1/2in 6-32 screws
2 x 1.5in x 1/8in o-rings
1 x NEMA 14/17 stepper w/ mounting screws
Drill and drill bit set

If you like this project and wan't to learn more about making things with 3D printers, laser engravers and other cool maker-tech, check out my new book "The Makerspace Workbench" from Maker Media!

Don't forget to follow me on Twitter!