COVID Log - Revision history

Marcin at 23:41, 25 March 2020

2020-03-25T23:41:26Z

Marcin at 23:40, 25 March 2020

2020-03-25T23:40:01Z

← Older revision		Revision as of 23:40, 25 March 2020
Line 13:		Line 13:
	*One spool of TPU filament gets you 40 masks, so 50 cents per mask in TPU.		*One spool of TPU filament gets you 40 masks, so 50 cents per mask in TPU.
	*5 cents/mask in TPU with 1 ton MOQ TPU pellets turned to filament.		*5 cents/mask in TPU with 1 ton MOQ TPU pellets turned to filament.

			*[[Open Source Ventilator]] - [[Ventilaid]]

Marcin: /* Wed Mar 25, 2020 */

2020-03-25T23:23:34Z

Wed Mar 25, 2020

← Older revision		Revision as of 23:23, 25 March 2020
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	**Identify bulk source of low cost visor material (10 cents a sheet)		**Identify bulk source of low cost visor material (10 cents a sheet)

	Otherwise, 3d print a hollow, square rubber gasket in lieu of weatherstrip, with 2x2x20 cm hollow simulated square tube for the - [[File:facemaskgasket.stl]]. 25 grams - [[File:facemaskgasket.png\|300px]]		*Otherwise, 3d print a hollow, square rubber gasket in lieu of weatherstrip, with 2x2x20 cm hollow simulated square tube for the - [[File:facemaskgasket.stl]]. 25 grams - [[File:facemaskgasket.png\|300px]]
			*One spool of TPU filament gets you 40 masks, so 50 cents per mask in TPU.
			*5 cents/mask in TPU with 1 ton MOQ TPU pellets turned to filament.

Marcin at 23:22, 25 March 2020

2020-03-25T23:22:13Z

← Older revision		Revision as of 23:22, 25 March 2020
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	**Supply-chain disruption-safe filter material source in bulk, minimum supply of 1000 or so		**Supply-chain disruption-safe filter material source in bulk, minimum supply of 1000 or so
	**good seal between edges of mask and face		**good seal between edges of mask and face
	**Undisruptable supply of TPU filament for distributed production - need to start making it from pellets		**Undisruptable supply of TPU filament for distributed production - need to start making it from pellets. It's expected that we have a PLA or PETg mask with rubber gasket, or entire mask of rubber for good fit. PETg + rubber is good for cleanability + fit.
	*at [[Open Source Face Shield]] - identify the 1-minute build, 25 cent option:		*at [[Open Source Face Shield]] - identify the 1-minute build, 25 cent option:
	**Weather strip (Isaac model) with glued-on visor.		**Weather strip (Isaac model) with glued-on visor.

Marcin at 23:19, 25 March 2020

2020-03-25T23:19:53Z

← Older revision		Revision as of 23:19, 25 March 2020
Line 10:		Line 10:
	**Identify bulk source of low cost visor material (10 cents a sheet)		**Identify bulk source of low cost visor material (10 cents a sheet)

	Otherwise, 3d print a hollow, square rubber gasket in lieu of weatherstrip, with 2x2x20 cm hollow simulated square tube for the - [[File:facemaskgasket.stl]]		Otherwise, 3d print a hollow, square rubber gasket in lieu of weatherstrip, with 2x2x20 cm hollow simulated square tube for the - [[File:facemaskgasket.stl]]. 25 grams - [[File:facemaskgasket.png\|300px]]

Marcin at 23:19, 25 March 2020

2020-03-25T23:19:04Z

← Older revision		Revision as of 23:19, 25 March 2020
Line 10:		Line 10:
	**Identify bulk source of low cost visor material (10 cents a sheet)		**Identify bulk source of low cost visor material (10 cents a sheet)

	Otherwise, 3d print a hollow, square rubber gasket in lieu of weatherstrip, with 2x2x20 cm hollow simulated square tube for the - [[File:~~gasket~~.stl]]		Otherwise, 3d print a hollow, square rubber gasket in lieu of weatherstrip, with 2x2x20 cm hollow simulated square tube for the - [[File:facemaskgasket.stl]]

Marcin: /* Wed Mar 25, 2020 */

2020-03-25T23:18:29Z

Wed Mar 25, 2020

← Older revision		Revision as of 23:18, 25 March 2020
Line 5:		Line 5:
	**good seal between edges of mask and face		**good seal between edges of mask and face
	**Undisruptable supply of TPU filament for distributed production - need to start making it from pellets		**Undisruptable supply of TPU filament for distributed production - need to start making it from pellets
			*at [[Open Source Face Shield]] - identify the 1-minute build, 25 cent option:
			**Weather strip (Isaac model) with glued-on visor.
			**Identify bulk source of weatherstrip (10 cents a strip)
			**Identify bulk source of low cost visor material (10 cents a sheet)

			Otherwise, 3d print a hollow, square rubber gasket in lieu of weatherstrip, with 2x2x20 cm hollow simulated square tube for the - [[File:gasket.stl]]

Marcin at 23:07, 25 March 2020

2020-03-25T23:07:35Z

← Older revision		Revision as of 23:07, 25 March 2020
Line 1:		Line 1:
	=Wed Mar 25, 2020=		=Wed Mar 25, 2020=
	Current action points:		Current action points:
	*		*At [[Open Source Respirator]] - take best 3D printed candidate - but it requires 3 optimization:
			**Supply-chain disruption-safe filter material source in bulk, minimum supply of 1000 or so
			**good seal between edges of mask and face
			**Undisruptable supply of TPU filament for distributed production - need to start making it from pellets

Marcin: Created page with "=Wed Mar 25, 2020= Current action points: *"

2020-03-25T23:03:40Z

Created page with "=Wed Mar 25, 2020= Current action points: *"

New page

=Wed Mar 25, 2020=
Current action points:
*

← Older revision		Revision as of 23:41, 25 March 2020
Line 5:		Line 5:
	**good seal between edges of mask and face		**good seal between edges of mask and face
	**Undisruptable supply of TPU filament for distributed production - need to start making it from pellets. It's expected that we have a PLA or PETg mask with rubber gasket, or entire mask of rubber for good fit. PETg + rubber is good for cleanability + fit.		**Undisruptable supply of TPU filament for distributed production - need to start making it from pellets. It's expected that we have a PLA or PETg mask with rubber gasket, or entire mask of rubber for good fit. PETg + rubber is good for cleanability + fit.
			*[[Open Source Ventilator]] - [[Ventilaid]]
			**Adapt it for sensors, humidifier, air heater, safety valves, and auto control
			**Probably can replace pneumatic cylinder with [[Universal Axis]] which can control stroke, velocity, acceleration fully
	*at [[Open Source Face Shield]] - identify the 1-minute build, 25 cent option:		*at [[Open Source Face Shield]] - identify the 1-minute build, 25 cent option:
	**Weather strip (Isaac model) with glued-on visor.		**Weather strip (Isaac model) with glued-on visor.
	**Identify bulk source of weatherstrip (10 cents a strip)		**Identify bulk source of weatherstrip (10 cents a strip)
	**Identify bulk source of low cost visor material (10 cents a sheet)		**Identify bulk source of low cost visor material (10 cents a sheet)

	*Otherwise, 3d print a hollow, square rubber gasket in lieu of weatherstrip, with 2x2x20 cm hollow simulated square tube for the - [[File:facemaskgasket.stl]]. 25 grams - [[File:facemaskgasket.png\|300px]]		*Otherwise, 3d print a hollow, square rubber gasket in lieu of weatherstrip, with 2x2x20 cm hollow simulated square tube for the - [[File:facemaskgasket.stl]]. 25 grams - [[File:facemaskgasket.png\|300px]]
	*One spool of TPU filament gets you 40 masks, so 50 cents per mask in TPU.		*One spool of TPU filament gets you 40 masks, so 50 cents per mask in TPU.
	*5 cents/mask in TPU with 1 ton MOQ TPU pellets turned to filament.		*5 cents/mask in TPU with 1 ton MOQ TPU pellets turned to filament.

	*[[Open Source Ventilator]] - [[Ventilaid]]