10/21 - Revision history

Alanscrase: /* Cost */

2021-08-19T07:10:35Z

Cost

Nicholas w at 00:24, 18 August 2021

2021-08-18T00:24:03Z

Nicholas w at 00:03, 18 August 2021

2021-08-18T00:03:22Z

Nicholas w at 23:59, 17 August 2021

2021-08-17T23:59:55Z

Nicholas w at 23:56, 17 August 2021

2021-08-17T23:56:02Z

Nicholas w at 22:38, 17 August 2021

2021-08-17T22:38:15Z

Nicholas w at 22:32, 17 August 2021

2021-08-17T22:32:00Z

Nicholas w at 22:22, 17 August 2021

2021-08-17T22:22:25Z

Nicholas w at 22:19, 17 August 2021

2021-08-17T22:19:58Z

Nicholas w at 22:18, 17 August 2021

2021-08-17T22:18:25Z

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 <!-- this should include purchase cost preferably with an internet link, cost of consumables,  -->
 * £170 alan suggested this one: [https://www.axminstertools.com/axminster-craft-ac15afs-air-filter-106179 some machine]
-* £90 this is the [https://vevor.co.uk/products/pure-air-fume-extractor-smoke-air-purifer-80w-air-pure-purifier-for-cnc-laser?gclid=CjwKCAjwpMOIBhBAEiwAy5M6YGspQsVMaO7GjeHkIjIGTyy8wHnv8fmWoGtnW5wGmVmY5WBSHwZiZhoCsXoQAvD_BwE one peter suggested] , but the [https://www.amazon.co.uk/VEVOR-Extractor-Purifier-Low-Noise-Engraving/dp/B08DTHPDR8 reviews are poor] and he can't find replacement filters.
+* £190 this is the [https://vevor.co.uk/products/pure-air-fume-extractor-smoke-air-purifer-80w-air-pure-purifier-for-cnc-laser?gclid=CjwKCAjwpMOIBhBAEiwAy5M6YGspQsVMaO7GjeHkIjIGTyy8wHnv8fmWoGtnW5wGmVmY5WBSHwZiZhoCsXoQAvD_BwE one peter suggested] , but the [https://www.amazon.co.uk/VEVOR-Extractor-Purifier-Low-Noise-Engraving/dp/B08DTHPDR8 reviews are poor] and he can't find replacement filters.
 * plexer is interested in finding out what fumes there are, and [https://www.amazon.co.uk/Multifunctional-Monitor-Portable-Formaldehyde-Detector-Rechargeable/dp/B08LVT8C4H/ref=asc_df_B08LVT8C4H?tag=bingshoppinga-21&linkCode=df0&hvadid=80058291870261&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=&hvtargid=pla-4583657833828190&psc=1 this is a £60 thing]

← Older revision		Revision as of 00:24, 18 August 2021
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	== UNFINISHED PROPOSAL - Lasercutter room fumes air filtering ==		== UNFINISHED PROPOSAL - Lasercutter room fumes air filtering ==
		+
		+	[https://www.sciencedirect.com/science/article/pii/S2212827120302845 this link looks absolutely excellent] it's a study/ paper on the various bad stuffs in a fablab - 3d printers + lasercutters.

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-== Lasercutter room fumes air filtering ==
+== UNFINISHED PROPOSAL - Lasercutter room fumes air filtering ==
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 "There’s no hard and fast rule for how much ventilation you need, other than as much as possible. For 3D printers we recommended that your ventilation system moves 3 times as much air as the volume of the room per hour. For laser cutters, it should probably be more."
 == Outcome ==

← Older revision		Revision as of 23:59, 17 August 2021
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	[https://electrocorpairpurification.wordpress.com/2011/07/05/health-and-safety-concerns-laser-engraving-hazards/ this page here] says:		[https://electrocorpairpurification.wordpress.com/2011/07/05/health-and-safety-concerns-laser-engraving-hazards/ this page here] says:
	Electrocorp has designed air cleaners for laser engraving and laser cutting environments. They feature a deep bed of activated carbon for the removal of chemicals as well as a powerful HEPA filter to remove particles that are released in the laser cutting process.		Electrocorp has designed air cleaners for laser engraving and laser cutting environments. They feature a deep bed of activated carbon for the removal of chemicals as well as a powerful HEPA filter to remove particles that are released in the laser cutting process.
		+
		+	[https://www.southernfriedscience.com/a-precautionary-approach-to-health-safety-and-conservation-while-using-awesome-awesome-laser-cutters-in-the-home/ lighter link]:
		+
		+	"There’s no hard and fast rule for how much ventilation you need, other than as much as possible. For 3D printers we recommended that your ventilation system moves 3 times as much air as the volume of the room per hour. For laser cutters, it should probably be more."
		+

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 == What is being asked for ==
 effective air cleaning.
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 [https://www.reddit.com/r/lasercutting/comments/hbin2v/laser_cut_acrylic_breathing_in_fumes/fv95jkd?utm_source=share&utm_medium=web2x&context=3 some chemist on reddit] did back-of-the-envelope maths which suggests an unventilated (normal) lasercutter can go way over 0.17ppm.
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 == Comments ==
 might be cancerous, might not, either way it stinks real bad and is bad news.

← Older revision		Revision as of 22:38, 17 August 2021
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	== Why/how this will be good to have ==		== Why/how this will be good to have ==
−	So what are the fumes? from acrylic [https://www.pmma.dk/Acryl_miljopaavirkning.aspx?Lang=en-GB this clever article] says MMA, which is non toxic, but you can smell it at 0.05ppm, where 0.17ppm is ~~perfectly~~ safe for life-long inhalation, as it breaks down and is not accumulated in the body. That research was commissioned by a acrylic lasercutting company, who installed a 20m chimney and "Induflex has 6 lasers, which are all modified with '''much stronger suction''' than delivered by the manufacturer."	+	So what are the fumes? from acrylic [https://www.pmma.dk/Acryl_miljopaavirkning.aspx?Lang=en-GB this clever article] says [https://en.wikipedia.org/wiki/Methyl_methacrylate MMA], which is non toxic (But an irritant), but you can smell it at 0.05ppm, where 0.17ppm is safe for life-long inhalation, as it breaks down and is not accumulated in the body. That research was commissioned by a acrylic lasercutting company, who installed a 20m chimney and "Induflex has 6 lasers, which are all modified with '''much stronger suction''' than delivered by the manufacturer."
		+
		+	[https://www.reddit.com/r/lasercutting/comments/hbin2v/laser_cut_acrylic_breathing_in_fumes/fv95jkd?utm_source=share&utm_medium=web2x&context=3 some chemist on reddit] did back-of-the-envelope maths which suggests an unventilated (normal) lasercutter can go way over 0.17ppm.

← Older revision		Revision as of 22:32, 17 August 2021
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	== Why/how this will be good to have ==		== Why/how this will be good to have ==
		+	So what are the fumes? from acrylic [https://www.pmma.dk/Acryl_miljopaavirkning.aspx?Lang=en-GB this clever article] says MMA, which is non toxic, but you can smell it at 0.05ppm, where 0.17ppm is perfectly safe for life-long inhalation, as it breaks down and is not accumulated in the body. That research was commissioned by a acrylic lasercutting company, who installed a 20m chimney and "Induflex has 6 lasers, which are all modified with '''much stronger suction''' than delivered by the manufacturer."
		+
		+

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 == Date for Decision ==
-Usually one week after posting
+Usually one week after posting - ''but having a month on this might be better''
 == Cost ==