Insulated Heatbed - Revision history

Marcin: /* See Also/Merge With */

2021-02-18T07:09:32Z

Marcin at 07:09, 18 February 2021

2021-02-18T07:09:00Z

← Older revision		Revision as of 07:09, 18 February 2021
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			{{Hint\|Integrate this with [[120V Heatbed]]}}

	{{Hint\|Max continuous temperature of the OSE Insulated heatbed is 178C, which is the max temperature at which the PEI surface can remain at continuous duty. Without the PEI, the bed can probably go to 400C, with the limit being the temperature limit of the 200C wire junction inside the bed. This heat bed operates at 120V AC, which is dangerous high voltage (shocks occur above 48V). This bed can kill you. Do not use this heat bed unless you understand its design and function, and do not use this without a ground fault interrupter as shown in the BOM for D3D v19.06 - [[D3D_v19.06#BOM_2]].}}		{{Hint\|Max continuous temperature of the OSE Insulated heatbed is 178C, which is the max temperature at which the PEI surface can remain at continuous duty. Without the PEI, the bed can probably go to 400C, with the limit being the temperature limit of the 200C wire junction inside the bed. This heat bed operates at 120V AC, which is dangerous high voltage (shocks occur above 48V). This bed can kill you. Do not use this heat bed unless you understand its design and function, and do not use this without a ground fault interrupter as shown in the BOM for D3D v19.06 - [[D3D_v19.06#BOM_2]].}}

Eric: Added some more links under the "See Also/Merge With" Section

2021-01-29T02:53:55Z

Added some more links under the "See Also/Merge With" Section

← Older revision		Revision as of 02:53, 29 January 2021
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	*Check out different ways to do a heatbed - including resistors and nichrome - [https://nutz95.wordpress.com/2015/02/22/how-to-choose-a-ffffdm-3d-printer-do-i-need-a-heat-bed/]		*Check out different ways to do a heatbed - including resistors and nichrome - [https://nutz95.wordpress.com/2015/02/22/how-to-choose-a-ffffdm-3d-printer-do-i-need-a-heat-bed/]
	*[[RAMPS on 24V]]		*[[RAMPS on 24V]]

			=See Also/Merge With=
			*[[3D Printer Heat Bed Insulation]]
			*[[Heated Bed]]
			*[[12" Heated Bed]]
			*[[D3D Heated Bed]]

	[[Category: Incomplete Pages]]		[[Category: Incomplete Pages]]

Eric: Marked this Page for Later Work

2021-01-29T02:49:28Z

Marked this Page for Later Work

← Older revision		Revision as of 02:49, 29 January 2021
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	*Check out different ways to do a heatbed - including resistors and nichrome - [https://nutz95.wordpress.com/2015/02/22/how-to-choose-a-ffffdm-3d-printer-do-i-need-a-heat-bed/]		*Check out different ways to do a heatbed - including resistors and nichrome - [https://nutz95.wordpress.com/2015/02/22/how-to-choose-a-ffffdm-3d-printer-do-i-need-a-heat-bed/]
	*[[RAMPS on 24V]]		*[[RAMPS on 24V]]

			[[Category: Incomplete Pages]]

Marcin: /* 8" and 12" Bed */

2019-07-22T16:40:16Z

8" and 12" Bed

← Older revision		Revision as of 16:40, 22 July 2019
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	=8" and 12" Bed=		=8" and 12" Bed=
	*Considerations: using a belt-driven Z axis, we have 18 lb of holding torque per Nema 17 72 oz in motor. We use 2 motors per side. The bed weight should thus not be more than 50% of the holding torque to move bed up.		*Considerations: using a belt-driven Z axis, we have 18 lb of holding torque per Nema 17 72 oz in motor. We use 2 motors per side. The bed weight should thus not be more than 50% of the holding torque to move bed up, or no heavier than 18 lb.
	*Weight of insulated heatbed steel - 1/8" square, 8x8"; 1/16" square, 8x8"; [4] strips, 2"x7.5". Total weight is equivalent to an 8x8" square, 1/4" thick - or 5 lb. See [[~~Steel Weight~~]].		*Weight of insulated heatbed steel - 1/8" square, 8x8"; 1/16" square, 8x8"; [4] strips, 2"x7.5". Total weight is equivalent to an 8x8" square, 1/4" thick - or 4.4 lb based on [[Steel Weight]]. With the insulation and wiring, it should be about 5-6 lb.
			*Weight of insulated heatbed - 12". 12" version should have a 12.5" surface. See [[12" Heated Bed]]. Weight should be approximately 10 lb. This is also within the weight handling limit of 2 Nema 17 stepper motors - allowing for 8 lb of printed material at a time.

	=BOM=		=BOM=

Marcin: /* Nichrome Heater Theory */

2019-07-22T16:13:12Z

Nichrome Heater Theory

← Older revision		Revision as of 16:13, 22 July 2019
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	*[[Nichrome Wire Calculator]] assumedly covers radiation loss only - as no information is given on conduction, or convection		*[[Nichrome Wire Calculator]] assumedly covers radiation loss only - as no information is given on conduction, or convection
	*In a heated bed application, the real temperature will be determined by conduction to steel plate and convection to air. The complication comes from how much thermal insulation occurs due to the fiberglass coating of the wire.		*In a heated bed application, the real temperature will be determined by conduction to steel plate and convection to air. The complication comes from how much thermal insulation occurs due to the fiberglass coating of the wire.

			=8" and 12" Bed=
			*Considerations: using a belt-driven Z axis, we have 18 lb of holding torque per Nema 17 72 oz in motor. We use 2 motors per side. The bed weight should thus not be more than 50% of the holding torque to move bed up.
			*Weight of insulated heatbed steel - 1/8" square, 8x8"; 1/16" square, 8x8"; [4] strips, 2"x7.5". Total weight is equivalent to an 8x8" square, 1/4" thick - or 5 lb. See [[Steel Weight]].

	=BOM=		=BOM=

Marcin at 22:49, 20 July 2019

2019-07-20T22:49:27Z

← Older revision		Revision as of 22:49, 20 July 2019
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	{{Hint\|Max continuous temperature of the OSE Insulated heatbed is 178C, which is the max temperature at which the PEI surface can remain at continuous duty. Without the PEI, the bed can probably go to 400C, with the limit being the temperature limit of the 200C wire junction inside the bed. This heat bed operates at 120V AC, which is dangerous high voltage (shocks occur above 48V). This bed can kill you. Do not use this heat bed unless you understand its design and function, and do not use this without a ground fault interrupter as shown ~~below~~.}}		{{Hint\|Max continuous temperature of the OSE Insulated heatbed is 178C, which is the max temperature at which the PEI surface can remain at continuous duty. Without the PEI, the bed can probably go to 400C, with the limit being the temperature limit of the 200C wire junction inside the bed. This heat bed operates at 120V AC, which is dangerous high voltage (shocks occur above 48V). This bed can kill you. Do not use this heat bed unless you understand its design and function, and do not use this without a ground fault interrupter as shown in the BOM for D3D v19.06 - [[D3D_v19.06#BOM_2]].}}

	=Requirements=		=Requirements=

Marcin at 22:47, 20 July 2019

2019-07-20T22:47:07Z

← Older revision		Revision as of 22:47, 20 July 2019
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	{{Hint\|Max continuous temperature of the OSE Insulated heatbed is 178C, which is the max temperature ~~that~~ the PEI surface can remain at ~~for~~ continuous duty. Without the PEI, the bed can probably go to 400C, with the limit being the temperature limit of the 200C wire junction inside the bed.}}		{{Hint\|Max continuous temperature of the OSE Insulated heatbed is 178C, which is the max temperature at which the PEI surface can remain at continuous duty. Without the PEI, the bed can probably go to 400C, with the limit being the temperature limit of the 200C wire junction inside the bed. This heat bed operates at 120V AC, which is dangerous high voltage (shocks occur above 48V). This bed can kill you. Do not use this heat bed unless you understand its design and function, and do not use this without a ground fault interrupter as shown below.}}

	=Requirements=		=Requirements=

Marcin at 22:44, 20 July 2019

2019-07-20T22:44:34Z

← Older revision		Revision as of 22:44, 20 July 2019
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			{{Hint\|Max continuous temperature of the OSE Insulated heatbed is 178C, which is the max temperature that the PEI surface can remain at for continuous duty. Without the PEI, the bed can probably go to 400C, with the limit being the temperature limit of the 200C wire junction inside the bed.}}

	=Requirements=		=Requirements=
	*Insulated bed works with OSE Thermite Bed, 12/24V industry standard, and 8" silicone heatpad. Smaller bed may be used, such as 6 or 4 inch, and can work decently because of 2" insulation layer.		*Insulated bed works with OSE Thermite Bed, 12/24V industry standard, and 8" silicone heatpad. Smaller bed may be used, such as 6 or 4 inch, and can work decently because of 2" insulation layer.

Marcin at 05:07, 1 June 2019

2019-06-01T05:07:29Z

← Older revision		Revision as of 05:07, 1 June 2019
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	[https://docs.google.com/presentation/d/1iHdFOSU4rQ6k_6EI3gYcTaRYY340Q6eQbkIvpz97_t8/edit#slide=id.g5112ec6fee_0_0 edit]		[https://docs.google.com/presentation/d/1iHdFOSU4rQ6k_6EI3gYcTaRYY340Q6eQbkIvpz97_t8/edit#slide=id.g5112ec6fee_0_0 edit]

			=OSE Build=

			<html><iframe src="https://www.facebook.com/plugins/post.php?href=https%3A%2F%2Fwww.facebook.com%2Fmarcin.jakubowski.378%2Fposts%2F10216339534458138&width=500" width="500" height="752" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowTransparency="true" allow="encrypted-media"></iframe></html>


	=Nichrome Heater Theory=		=Nichrome Heater Theory=

← Older revision		Revision as of 07:09, 18 February 2021
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	=See Also/Merge With=		=See Also/Merge With=
			*[[Nichrome Wire Calculator]]
	*[[3D Printer Heat Bed Insulation]]		*[[3D Printer Heat Bed Insulation]]
	*[[Heated Bed]]		*[[Heated Bed]]