Mini Pellet Extruder

If there is a better (more exposure/more appropriate) place for my post please let me know.

I purchased components recently to build a mini pellet extruder. I'm thinking it should work for melting and extruding powder which is the plan.

It's branded as Funssor and similar to this one branded as a Polished3D
[www.amazon.com]

The difference is the "barrel/heat sink" should be brass with the version I purchased and it was about 15$ cheaper. I mostly bought it for the screw. I can make or have made a different barrel pretty easily.

I'm interested in developing a new series of filaments. I looked at the cost of Filament extrusion machines and found one called the FilaStruder that appears solid and at a good price. Others that seem appropriate for what I want to do at first are from about 2,000-12,000$.

The primary reason I'm interested in developing a little mini screw extruder is to test/prove the concept of the material(s) I want to develop at as cheaply as possible.

Should essentially replicate filament production skipping the actual filament.

Has anyone here any experience with these parts or know of any examples of they're use in D.I.Y. setups?

Any links to working projects or information on how to set them up/build out the extruder assembly would be appreciated.

[www.robotdigg.com]

The link above shows a schematic for a Mahor extruder.
I think these parts available in a couple types under different brands may be leftovers/abandoned from production run parts for the v1, 2, or 3 Mahor. I looked at the version of the Mahor that's currently being sold v4 and it appears the barrel is significantly different.

Anyway if anyone would like to offer suggestions, information and such I'm open to that and looking for whatever help I can get in developing this project.

Thank You

Edited 1 time(s). Last edit at 02/04/2024 03:01AM by brianmh13.

Hi Brian,

I browsed the forum because I develop a large scale 3D printer and stumbled across your post. I would want that printer to utilize a pellet extruder optionally (initially it will be filament based). I am also in the need of a handheld extruder and, mostly as backup should the first not be feasable, potentially also a static filament extruder.

I did not really start that project yet but I would love to do so in cooperation as the workload would be lower then. My goals with a design would be a parametric one, with an easily scalable extruder with low weight, high throughput and high precision to make a single project suitable for all three of my needs. I also have an interesting "new" or better "unusual" idea to seperate the meltzone from the actual extrusion by using a gearpump for the latter. That way you would be extremly free in the design of the meltzone - and you could also decouple the extrusion precision from quite a lot of factors such as pellet regularity. You would not need a complicated screw either (or maybe, depends on the meltzone design, did not thought about it much yet) - but you would need a gearpump capable of pumping very hot liquids.

If you are interested in collaboration feel free to answer here or write me a PM for contact details - I guess a call/videochat would be ideal for initial coordination and to see if that could work out in some way.

Best regards,
Marvin