I generally smell the most burn / material from the GF after it has completed cutting.
After the cut is done the head resets position and the fan turns off.
I have read that being able to leave the fan on for a brief while after the cut is done is something GF is “working on” - any updates on this? It would seem many people are getting puffs of smoke under materials and open the cover minutes later to find the smoke there and subsequently exiting into their workspace.
After the fan turns off - what happens to the air inside the GF? Is it sealed? If not, is the smoke escaping through the intake valves?
Unfortunately, the smokiest part is after cuts - this takes a toll on those with allergies / sensitivities.
I know there is residue left on the print, but it actually feels like smoke is being pushed out of the GF right after a print.
The fan should stay on for long enough to clear the smoke. If you are still getting smoke/smell, look for leaks in your ducting and make sure that the vent is clear, within specified length limits, and does not have too many bends.
Mine runs for a while after the job and clears the thick smoke out. However, as has been noted before, there is smoke stuck under the work piece in the crumb tray. As soon as I move the work, it escapes. So I often move the piece to the side and close the forge again and wait a moment before removing anything.
Unfortunately, I don’t think this will help. I am pretty sure the honeycomb is suspended in the tray, such that there is exit room there. When I have placed material so the back 1/2 inch or so is not covered, I can clearly see smoke being drawn from under the material during cuts.
The problem is that smoke collects in cells that are closed on top by the material (probably lots of turbulent flow under there). Without moving the material, that smoke is going to stay trapped there.
Thanks for writing. I’m glad you contacted us about this.
Even with proper filtration, small amounts of smoke and fumes can enter the air around your Glowforge, producing a detectable odor. You may also smell an odor when you open the Glowforge lid, even long after a print is complete. This is not harmful.
However, if you detect a strong, sharp smell that also causes eyes, nose, or throat irritation, or if there is visible smoke escaping while the lid is closed, shut off your Glowforge unit immediately. Smoke and fumes could be entering the room in excessive concentrations.
They are harmful if you have asthma, young children, other sensitivities or are concerned about particulates:
From the EPA: “articulate matter (PM), also known as particle pollution, is a complex mixture of extremely small particles and liquid droplets that get into the air. Once inhaled, these particles can affect the heart and lungs and cause serious health effects.”