Looking for Collaborators

A project log for Micro Injection Molding Machine

Building a tabletop injection molding machine.

jupdykejupdyke 02/10/2016 at 06:056 Comments

Anyone interested in working together on this project? I am planning on continuing to design and build it, but I am open to working together. I have access to most of the equipment to machine the parts. If anyone is interested we could maybe work out a deal where I machine more than one copy of parts in exchange for raw material costs.

I am still working on the design in my free time. It is mostly a thought project now. Something to think about and add details to. I find doing CAD design relaxing. Here are a few things I have been thinking about and adding details

I also did some looking at other DIY builds to see how practical it is to build a mechanism to melt and inject pellets. Heating and melting the pellets is simple enough. I have made a few 3d printers that are melting filament, and my first aluminum mold for the Tank Chain project has heaters built in. But the injection part is a little more work. Not sure how hard it will be to build up enough pressure. I am currently thinking of using something like what DIY filament making machines use.

Something like this:

Anyone know a good source for augers like this?


yutiansg wrote 03/11/2017 at 01:45 point


I am working on the micro injection molding machine design, I like to have some idea exchange with you.

What kind of Collaboration tools we can use for this collaboration? please drop me a email and let's have more details discussion.

my email:

have  a great weekend

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Alex Rich wrote 02/11/2016 at 01:22 point

I googled around, didn't see any obvious auger sources.  Some crap on alibaba

I still like the spiral injection screws the japanese machine uses.  Would be much easier to prototype too, no 4th axis machining.

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jupdyke wrote 02/10/2016 at 17:25 point

I would not be surprised if a wood drill bit might work, but there is quite a bit of difference in the augers in injection molding machines. They have 3 different zones to melt and remove air from the plastic

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chrisjmulhall wrote 02/10/2016 at 17:12 point

Alternatively there are many "Auger" wood drill bits available

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chrisjmulhall wrote 02/10/2016 at 17:11 point

"Anyone know a good source for augers like this?"

Would a large drill bit work? Masonry bits should be long enough. 

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