Fume extractor with external switch

pictures are coming when I get the possibility to take them
Edit: turns out, the modified lid don't fit into the case with a mounted cable gland. So I have to redesign this part completely. And maybe I need to cut away something from the left half of the case, we will see

the most credit goes to the author of the original thing.
what changes I made:
cartridge: nothing changed, just the unmodified files from the original thing
case: the holes for mounting the lid are smaller because I don't have heat inserts and want to use self tapering screws instead. Also the hole for the female barrel jack connector has a bigger diameter (11mm) because this is needed for the connector I ordered.
lid: I closed the holes for the switch and the LED (although the last didn't work in the exported stl)
Also I placed a 12mm hole for a M12 cable gland instead because I wanted a switch I could place free on the desk like the professionals fume extractors I use at work.

So I added a little case for a switch