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Portable desktop injection machine


This topic contains 62 replies, has 6 voices, and was last updated by  pporg 5 days ago.


Portable desktop injection machine

27/01/2019 at 19:48

Hey guys,
it was suppose to be an easy thing I thought but I spent then 3 full days on it at the end, lots of hours on the lathe, 1-2 hours welding and a little bit on the mill. I wanted the best result possible, tight tolerances, smooth plunge and an easy to extrude plastic with a flexible nozzle. (btw. I can’t recommend building this without lathe or mill, it really wants it accurate to get a smooth plunge).

In the next iteration I will try to have it spring loaded which is pretty difficult as I noticed.

here you go, full metal desktop injection (some part are hardened to maintain this nice blob sound in the barrel) :

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28/01/2019 at 11:39

yeah, shot size is always problem 🙂

it’s still a nice build, can you add more pictures or details (the parts) ? You used a drill press as base ? Or are the parts milled ?


28/01/2019 at 02:53

I made similar to that.  Looked good but the shot size was way too small to do the kind of things I wanted to do.  It also too a long time between shots because it didn’t have much plastic in it/thermal mass etc

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