Printing high performance plastics on your 3D printer requires some special hardware such as a thermocouple and all metal hotend, but the most important thing is a heated chamber. Up to now all the DIY solutions have been made for aesthetics with transparent sides. To actually make a functional chamber for printing high temperature and high performance plastics you need to insulate, seal, and actively heat the chamber. Single wall acrylic sides won't do the job.

Electronics Isolation Tower Video:
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The CoreXY Printer I showed in this video:
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