This is the base for my DIY enclosure, made with 3d printed Fittings and 490mmx25mm (outside diameter) PVC pipes. I've made 8 fittings in PETG (one for each corner) and then wrap a transparent PVC sheet (we use them here it as table cover) around, cut and glued with universal glue(it ended up meting the plastic a little bit). I added velcro at the ends of the bottom, so they wrap around the pipes, and join the the other part in the inside for ease of removal/installation. and i also used velcro to help close the "door" (I've made it just with the same material, without gluing the front/sides) it works very well, I've printed a lot of things in abs and PETG in it with no problems at all, and even without additional heating, just with the bed heat i used it with my Creallity ender 3 v3 KE without the spool holder at the top, but i guess most of the ender series should fit too without changing the tube sizes, and if any thing just size the PVC pipes to fit your machine. I'm also planning adding a aluminum sheet on the top of the box (under the plastic) to serve as a table for some tools for the printer, but nothing too heavy