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generally the enclosure is pruely for awkward materials with a high shrinkage ratio.
nylon, abs, polycarbonate, peek.

Pla based filaments and pet and pet-g and flexible filaments don't need it....

That they tell you that is a good sign lol

Looks like a decent machine.
As far as budget wise goes, you could probably get something ready built for less.

As kits got - take a look at this:...