https://www.thingiverse.com/thing:763081

https://www.thingiverse.com/thing:2923474

For regions with extreme cold weather or strong wind, you will need to print the outside ventilation grille or shaft to prevent wind blow in and bring in cold wind/sand/neighbor's cooking smell or cigarettes.

If you use cheap filament, the total cost can be controlled under $20 and it is easy enough to make. (I hope this is not derail from the topic)

Does anyone worry about the toxic gases being emitted? This has been my biggest fear and is why I have not purchased a good printer that would print ABS and other materials. The only place I have to keep my printer is in the house and in Florida you do not keep the windows open for long.

as others have stated. no real evidence/testing has been found to base much on but many people are bothered by any odd odors even scent candles/oils and I am like Heartless using only ABS as PLA has the strong Maple syrup smell and other drawbacks. I only have some days window can be left open but my home just got fully weatherized last year including vent which keeps fresh air replacement going most days so an separate exhaust for 3D printer is best fix. My wife complains of any smells even the neighbors cigarettes being drawn in by our vent fan. We have had Eye/throat irritation when printing all day and its worse if sitting near printer but odors get trapped in parts of house making you think something is smoldering at times. best fix I done was buying a small Holmes air ionizing filtered fan at Walmart and a box of charcoal filters that can be cut to fit and replace them monthly leave fan on low near printer to draw odors away and filter air into room. takes at least 90% odors out if not all. air tight homes need this most if not vented to outside from printer through ducted fan and charcoal filter should still be used to save environment. cant speak on other printing materials that have worse off gassing but external venting of 3D printers is the obvious solution just like Labs do. the powder type 3D printers do this already also the post cleanup cabinet for them and recomend using them in a lab clean room environment with proper safety wear for users.

here in the USA We are lucky as our laws make it mandatory that any product sold here must have MSDS document available from manufacturer/distributor free of charge so consumers/users know what if any hazards are involved with products so ask or search web sites for PDF of them at makers/distributors of filament site. while your at it do same for other household products you use including laundry detergents you may be surprised how much more hazardous they are also.

This is a kit build machine the price does not include an extruder or lcd for this price  these are like $10 each more depending on the options you select.  This is a very large printer I expect directed at advanced users. And I expect the size completed to be somewhere in the 500 deep x 500 high x 1000 mm long .
As always i make no recommendations for or against the purchase of this machine. This a a newly released kit build so expect a couple missing parts and a few glitches in the build manual.
This can be a great opportunity for someone wanting /needing an affordable large format printer.

The heat bed is mains powered so make sure you are comfortable with such wiring.

Does anyone worry about the toxic gases being emitted? This has been my biggest fear and is why I have not purchased a good printer that would print ABS and other materials. The only place I have to keep my printer is in the house and in Florida you do not keep the windows open for long.

the so called "dangers" have been seriously over-hyped to be perfectly honest.
I print ABS almost exclusively, and have no major problems with odors, or any other issues.
I also have COPD.

my "workshop" is a converted bedroom. I have 5 printers set up, with at least one running on most days, sometimes 2 or 3 at a time. It is far too cold in the winter to have open windows, so ventilation is the normal air flow in the room.. still no problems here.
I do have an air filter/purifier in the room, but frequently forget to turn it on, lol.

Carl
you forget I have a Makerbot 2X that is Stock. Im not worried about the wiring aspect but I have had a Rats nest  2 to 3 hours into a print 3 or 4 times in the last 5 years. which is always in the back of my mind. The longest print I have done so far has been about 14 hours. at least now the i have Moved I have a 9 X 12 room for my 3d printing so I hope to add a few more printers before i retire in june.

I know what machine you have. I have a fully converted clone of   yours with a heated bed and it is my best machine. Also there are two mods you might be interested in. Once they arrive in a week or so I will be doing a full overhaul on my machine.

https://www.ebay.com/itm/IDE-Flashforge … :rk:1:pf:0

https://www.ebay.com/itm/CTC-Flashforge … :rk:1:pf:0

I am also changing to a smoothie based controller and bigfoot stepper drivers.

That said the majority of us here have our printers in our homes. My shop is off the kitchen and is a bit drafty/ well ventilated. I have had the printer on at the end of the dining room table. Some folks have printers in there bedroom . I am under treatment for asthma and have no apparent health effects from 4 years of casual 3d printing and have no complaints from the wife about plastic smells .
Ultimately safety is your responsibility and you need to decide if the danger is real or hype.

tin

self extinguishing wiring? whats that? even Star Trek didnt have that LOL

Guess you need to get out more and explore the tech that is out there. Or just simply Google self extinguishing wire..

https://www.sab-cable.com/products/halo … c1-tp.html

I worked on all appliances household thru industrial and even electric range Oven Elements with fiberglass/ceramic insulated wires etc once element burned out and shorted to the Carbon element casing it looked like an Arch welder cutting a large hole in Oven cabinet even after turning off circuit breaker to Range for a bit like a sparkler. seen it 1st hand many times with electric heating devices. so yeah better respect anything that heats no matter what the source of heat is. never know what may happen and its very scary indoors. just poor safety precautions can multiply that disastrous outcome.

the prusa version of marlin has power recovery and filament sensing should not be that hard to modify.

If you go to the official Marlin site they specifically say the build they release does not support power recovery. The most current official version has no mention of power failure or resume on power loss in the configuration .h or configuration adv.h files. The ones that do are special machine specific version and as I said you would need a board that has a battery backup on the RAM and CPU so that the data in the boards buffer would not be lost. Power recovery only works on machines that print from SDcards either on the mainboard that is loaded through USB or through the LCD. A machine that is getting a realtime data stream from PC will not be able to auto resume since the PC will also shutdown thus shutting down the host.

Again your best bet for safety from power failures is to have the PC and printer on a UPS. That also offers surge protection and brownout protection that could cause logic lockups and cause one of those fires that you hear about.