There are several 3D printing pens out there that use plastic filaments to create 3D structures that you can actually hold in your hands, one of them is the 3Doodler we spent time with back in January ...
There are plenty of 3D printing pens now on the market but Daniel Edwards based in the UK has created a very unique kind of 3D pen called the Renegade. Which can recycle old plastic bottles and bags ...
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