Oh well, another thread derailing lol. I have 3 printers already. All have slightly different capabilities for different filaments and print sizes. Ender 3 is probably one of the best bang for the buck out there, although I don't have any personal experience with it. Personally Abs is my goto filament, but it all depends on the application. I have never seen the need for an exhaust fan for printing with it and a proper silicone heater and SS relay or mosfet are cheap addition to any printer. Enclosure is only really needed when you have drafts from a furnace or something. Be sure to get bed leveling too, best thing out there. 3d scanners are cheap and can even be done with the cellphone now. And since we are using it more for mechanical parts over artistic stuff, I highly recommend fusion 360 and it's free. Steep learning curve, but once it clicks for you quite easy.