I cut up, and taped up the Box that the TAZ came in to make a simple “heated” build chamber.
I use “heated” in quotes because there is no extra heater…just the heat from the machine itself.
The pictures should be enough to make your own. but this may limit the travel a little. If the Z height of your prints are large, the filament guide may hit the top. I left the foam door loose so the Y table can push into it when the print is done.
so far the temperature inside is staying just over 40 deg C (105 deg F), and this is in an air conditioned room (about 74 deg F)