Build an injection molding machine

Machine Specs

Difficulty ***
Weight +/-15 kg
Material costs +/- €130
Building time 3 days
Download Files

Video chapters

Time Difficulty Step
00:07 * Introduction
00:43 ** Making the hopper
02:01 *** Making the barrel
03:58 ** Making the nozzle
04:53 *** Making the framework
06:55 **** Connecting the electronics
10:30 ** How to use the machine
11:55 * Questions?

About injection molding

Plastic flakes are heated and injected into a mold. It’s a relatively quick process which is well suited for creating small objects repeatedly. You can make the molds yourself using CNC mills or lathes, or by simply welding them.

Technical drawings

You can find all the technical drawings to build this machine in our download-kit. They are divided into different steps and contain all the dimensions you need to build the machine.

3D overview

Below you can find a 3D visual of the machine, just to give you a basic understanding how it works, click the button to turn it around. Detailed CAD drawings can be found in the download-kit.


This injection molding machine is well suited for making small detailed objects. Put some effort into your mold once and it will pay off in the end. Since it works with molds you can easily replicate it and set up a production.


There are a lot of things you can do with this machine, you could customize it or make completely new molds we couldn’t even imagine. In our forums you can share your hacks and creations. The most interesting and useful ones are shared on our extra page. Below you can see a few creations for this machine

Water filters By TallerEsfèrica

Waterfilters made with injection

Lunchbox tryout By Paul Bosch

Trying to make an injected lunchbox.


Got questions, need more information, or something is just not fully clear? Please visit our support page, or directly visit our forums. This is the best place to get in touch with the community and to get an answer to your questions.

We need your HELP to boost plastic recycling all over the world!