TAZ 4 - Revision history

Jerkey at 04:08, 15 February 2026

2026-02-15T04:08:08Z

← Older revision		Revision as of 21:08, 14 February 2026
Line 1:		Line 1:
	Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older [[TAZ\|TAZ 3]] 3d printer, which didn't work very well as a 3D printer.		Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older [[TAZ\|TAZ 3]] 3d printer, which didn't work very well as a 3D printer.

	According [https://download.lulzbot.com/TAZ/4.0/documentation/current/manual/TAZ_4_Manual.pdf PDF Manual for the TAZ 4] the Nozzle diameter is 0.35mm (same as the TAZ3 which our extruder is from)		According [https://download.lulzbot.com/TAZ/4.0/documentation/current/manual/TAZ_4_Manual.pdf PDF Manual for the TAZ 4] <big>'''the Nozzle diameter is 0.35mm'''</big> (same as the TAZ3 which our extruder is from)

	Print volume is X: 298 by Y: 275 by Z: 250 according to [https://download.lulzbot.com/TAZ/4.0/software/current/firmware/Marlin/Marlin_TAZ4_1.0.0.1/Marlin/Configuration.h Configuration.h] in the firmware		<big>'''This printer's extruder is setup to use 3mm diameter filament'''</big>, which is usually set as 2.85mm in the slicer. The manual says "it is highly recommended to take multiple measurements from along a length of the filament and use the average." but trial and error is probably more effective to find the right value.

			<big>'''Print volume is X: 298 by Y: 275 by Z: 250 '''</big>according to [https://download.lulzbot.com/TAZ/4.0/software/current/firmware/Marlin/Marlin_TAZ4_1.0.0.1/Marlin/Configuration.h Configuration.h] in the firmware

	[https://download.lulzbot.com/TAZ/4.0/ All files for the TAZ 4 from Lulzbot corporation]		[https://download.lulzbot.com/TAZ/4.0/ All files for the TAZ 4 from Lulzbot corporation]

Jerkey at 04:02, 15 February 2026

2026-02-15T04:02:18Z

← Older revision		Revision as of 21:02, 14 February 2026
Line 1:		Line 1:
	Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older [[TAZ\|TAZ 3]] 3d printer, which didn't work very well as a 3D printer.		Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older [[TAZ\|TAZ 3]] 3d printer, which didn't work very well as a 3D printer.

	According [https://download.lulzbot.com/TAZ/4.0/documentation/current/manual/TAZ_4_Manual.pdf PDF Manual for the TAZ 4] the Nozzle diameter is 0.35mm (same as the TAZ3 which our extruder is from) ~~and the bed size~~ is X: 298 by Y: ~~280~~		According [https://download.lulzbot.com/TAZ/4.0/documentation/current/manual/TAZ_4_Manual.pdf PDF Manual for the TAZ 4] the Nozzle diameter is 0.35mm (same as the TAZ3 which our extruder is from)

			Print volume is X: 298 by Y: 275 by Z: 250 according to [https://download.lulzbot.com/TAZ/4.0/software/current/firmware/Marlin/Marlin_TAZ4_1.0.0.1/Marlin/Configuration.h Configuration.h] in the firmware

	[https://download.lulzbot.com/TAZ/4.0/ All files for the TAZ 4 from Lulzbot corporation]		[https://download.lulzbot.com/TAZ/4.0/ All files for the TAZ 4 from Lulzbot corporation]
Line 22:		Line 24:

	the default values are found in		the default values are found in
	~~<code>~~Configuration_adv.h:#define DIGIPOT_MOTOR_CURRENT {175,175,240,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)		[https://download.lulzbot.com/TAZ/4.0/software/current/firmware/Marlin/Marlin_TAZ4_1.0.0.1/Marlin/Configuration_adv.h Configuration_adv.h]:<code>#define DIGIPOT_MOTOR_CURRENT {175,175,240,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)

	pins.h:#define DIGIPOT_CHANNELS {4,5,3,0,1} // X Y Z E0 E1 digipot channels to stepper driver mapping</code>		pins.h:#define DIGIPOT_CHANNELS {4,5,3,0,1} // X Y Z E0 E1 digipot channels to stepper driver mapping</code>

Jerkey at 03:56, 15 February 2026

2026-02-15T03:56:23Z

← Older revision		Revision as of 20:56, 14 February 2026
Line 1:		Line 1:
	Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older [[TAZ\|TAZ 3]] 3d printer, which didn't work very well as a 3D printer.		Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older [[TAZ\|TAZ 3]] 3d printer, which didn't work very well as a 3D printer.

	[https://download.lulzbot.com/TAZ/4.0/ ~~Documentation~~ for the TAZ 4 from ~~Lulzbot corporation]~~		According [https://download.lulzbot.com/TAZ/4.0/documentation/current/manual/TAZ_4_Manual.pdf PDF Manual for the TAZ 4] the Nozzle diameter is 0.35mm (same as the TAZ3 which our extruder is from) and the bed size is X: 298 by Y: 280

	~~<big>'''The following start code should be entered until we can recompile the~~ [https://download.lulzbot.com/TAZ/4.0/~~software/~~current~~/firmware/Marlin/ firmware]~~		[https://download.lulzbot.com/TAZ/4.0/ All files for the TAZ 4 from Lulzbot corporation]

			<big>'''The following "start code" (set up in the slicer's printer profile) should be used with this printer in order to properly set extruder motor current:
	<code>M907 E150</code>'''</big>		<code>M907 E150</code>'''</big>

			If we recompile the [https://download.lulzbot.com/TAZ/4.0/software/current/firmware/Marlin/ firmware] we can put the correct default values for extruder motor current but that would be hard to do.

	[[File:720px-Rambo-conn-all.jpg\|thumb]]		[[File:720px-Rambo-conn-all.jpg\|thumb]]
Line 15:		Line 19:
	The TAZ 4 didn't work because both Fuse F2 and F3 on the RAMBO main board were missing. They're supposed to be [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg\|thumb\|left]]		The TAZ 4 didn't work because both Fuse F2 and F3 on the RAMBO main board were missing. They're supposed to be [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg\|thumb\|left]]

	~~<s>And now it turns on and mostly works, but~~ the extruder ~~stepper is~~ mostly skipping. ~~Most likely the~~ current ~~needs~~ to be adjusted ~~for the extruder stepper driver, which is something we have to read the manuals to figure out how to do</s> - there~~ are no tiny potentiometers to adjust on this RAMBO board, only a "digipot".		After installing the TAZ3 extruder, its motor was mostly skipping. The current needed to be adjusted. There are no tiny potentiometers to adjust on this RAMBO board, only a "digipot", which is controlled with the [https://marlinfw.org/docs/gcode/M907.html M907 command]

	~~The digipots are~~ controlled with the [https://marlinfw.org/docs/gcode/M907.html M907 command]

	the default values are found in		the default values are found in

Jerkey at 19:11, 30 October 2025

2025-10-30T19:11:42Z

← Older revision		Revision as of 12:11, 30 October 2025
Line 6:		Line 6:
	<code>M907 E150</code>'''</big>		<code>M907 E150</code>'''</big>

	[[File:~~Taz4~~-3d-~~printer~~.jpg\|thumb]]		[[File:720px-Rambo-conn-all.jpg\|thumb]]
	The extruder head from the TAZ 3 was transferred onto the TAZ 4 which will presumably make a better 3D printer. The TAZ 3 will be converted for solder paste dispensing only		The extruder head from the TAZ 3 was transferred onto the TAZ 4 which will presumably make a better 3D printer. The TAZ 3 will be converted for solder paste dispensing only
			[[File:Taz4-3d-printer.jpg\|720px]]

	The TAZ 4 uses an [https://reprap.org/wiki/Rambo Ultimachine Rambo 1.3L main board] and here is the correct [[File:RAMBo_1.3L_Schematic.pdf\|RAMBo_1.3L_Schematic]]		The TAZ 4 uses an [https://reprap.org/wiki/Rambo Ultimachine Rambo 1.3L main board] and here is the correct [[File:RAMBo_1.3L_Schematic.pdf\|RAMBo_1.3L_Schematic]]
	~~[[File:720px-Rambo-conn-all.jpg]]~~
	The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.		The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.

Jerkey at 19:07, 30 October 2025

2025-10-30T19:07:24Z

← Older revision		Revision as of 12:07, 30 October 2025
Line 2:		Line 2:

	[https://download.lulzbot.com/TAZ/4.0/ Documentation for the TAZ 4 from Lulzbot corporation]		[https://download.lulzbot.com/TAZ/4.0/ Documentation for the TAZ 4 from Lulzbot corporation]

			<big>'''The following start code should be entered until we can recompile the [https://download.lulzbot.com/TAZ/4.0/software/current/firmware/Marlin/ firmware]
			<code>M907 E150</code>'''</big>

	[[File:Taz4-3d-printer.jpg\|thumb]]		[[File:Taz4-3d-printer.jpg\|thumb]]
Line 7:		Line 10:

	The TAZ 4 uses an [https://reprap.org/wiki/Rambo Ultimachine Rambo 1.3L main board] and here is the correct [[File:RAMBo_1.3L_Schematic.pdf\|RAMBo_1.3L_Schematic]]		The TAZ 4 uses an [https://reprap.org/wiki/Rambo Ultimachine Rambo 1.3L main board] and here is the correct [[File:RAMBo_1.3L_Schematic.pdf\|RAMBo_1.3L_Schematic]]
	[~~Image:https://reprap.org/wiki/~~File:Rambo-conn-all.jpg]		[[File:720px-Rambo-conn-all.jpg]]
	The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.		The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.

	The TAZ 4 didn't work because both Fuse F2 and F3 on the RAMBO main board were missing. They're supposed to be [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg\|thumb\|left]]		The TAZ 4 didn't work because both Fuse F2 and F3 on the RAMBO main board were missing. They're supposed to be [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg\|thumb\|left]]

	And now it turns on and mostly works, but the extruder stepper is mostly skipping. Most likely the current needs to be adjusted for the extruder stepper driver, which is something we have to read the manuals to figure out how to do - there are no tiny potentiometers to adjust on this RAMBO board, only a "digipot".		<s>And now it turns on and mostly works, but the extruder stepper is mostly skipping. Most likely the current needs to be adjusted for the extruder stepper driver, which is something we have to read the manuals to figure out how to do</s> - there are no tiny potentiometers to adjust on this RAMBO board, only a "digipot".

	The digipots are controlled with the [https://marlinfw.org/docs/gcode/M907.html M907 command]		The digipots are controlled with the [https://marlinfw.org/docs/gcode/M907.html M907 command]

	~~The following start code should be entered until we can recompile the [https://download.lulzbot.com/TAZ/4.0/software/current/firmware/Marlin/ firmware]~~
	~~<code>M907 E150</code>~~

	the default values are found in		the default values are found in

Jerkey: add information about firmware and digipot current controls

2023-09-13T04:57:34Z

add information about firmware and digipot current controls

← Older revision		Revision as of 21:57, 12 September 2023
Line 12:		Line 12:
	The TAZ 4 didn't work because both Fuse F2 and F3 on the RAMBO main board were missing. They're supposed to be [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg\|thumb\|left]]		The TAZ 4 didn't work because both Fuse F2 and F3 on the RAMBO main board were missing. They're supposed to be [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg\|thumb\|left]]

	And now it turns on and mostly works, but the extruder stepper is mostly skipping. Most likely the current needs to be adjusted for the extruder stepper driver, which is something we have to read the manuals to figure out how to do - there are no tiny potentiometers to adjust on this RAMBO board, only a "digipot"		And now it turns on and mostly works, but the extruder stepper is mostly skipping. Most likely the current needs to be adjusted for the extruder stepper driver, which is something we have to read the manuals to figure out how to do - there are no tiny potentiometers to adjust on this RAMBO board, only a "digipot".

			The digipots are controlled with the [https://marlinfw.org/docs/gcode/M907.html M907 command]

			The following start code should be entered until we can recompile the [https://download.lulzbot.com/TAZ/4.0/software/current/firmware/Marlin/ firmware]
			<code>M907 E150</code>

			the default values are found in
			<code>Configuration_adv.h:#define DIGIPOT_MOTOR_CURRENT {175,175,240,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)

			pins.h:#define DIGIPOT_CHANNELS {4,5,3,0,1} // X Y Z E0 E1 digipot channels to stepper driver mapping</code>

Jerkey at 20:21, 15 June 2022

2022-06-15T20:21:46Z

← Older revision		Revision as of 13:21, 15 June 2022
Line 1:		Line 1:
	Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older TAZ 3 3d printer, which didn't work very well as a 3D printer.		Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older [[TAZ\|TAZ 3]] 3d printer, which didn't work very well as a 3D printer.

	[https://download.lulzbot.com/TAZ/4.0/ Documentation for the TAZ 4 from Lulzbot corporation]		[https://download.lulzbot.com/TAZ/4.0/ Documentation for the TAZ 4 from Lulzbot corporation]

Jerkey at 09:40, 12 June 2022

2022-06-12T09:40:25Z

← Older revision		Revision as of 02:40, 12 June 2022
Line 10:		Line 10:
	The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.		The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.

	The TAZ 4 didn't work because Fuse F3 on the RAMBO main board ~~was~~ missing. It's supposed to be a [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck a 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg\|thumb\|left]]		The TAZ 4 didn't work because both Fuse F2 and F3 on the RAMBO main board were missing. They're supposed to be [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg\|thumb\|left]]

	And now it turns on and ~~the LCD lights up~~ but ~~i can't get anything to move from~~ the ~~controls~~. ~~Tune in next week~~ to ~~see what happens.~~		And now it turns on and mostly works, but the extruder stepper is mostly skipping. Most likely the current needs to be adjusted for the extruder stepper driver, which is something we have to read the manuals to figure out how to do - there are no tiny potentiometers to adjust on this RAMBO board, only a "digipot"

Jerkey at 09:11, 12 June 2022

2022-06-12T09:11:51Z

← Older revision		Revision as of 02:11, 12 June 2022
Line 6:		Line 6:
	The extruder head from the TAZ 3 was transferred onto the TAZ 4 which will presumably make a better 3D printer. The TAZ 3 will be converted for solder paste dispensing only		The extruder head from the TAZ 3 was transferred onto the TAZ 4 which will presumably make a better 3D printer. The TAZ 3 will be converted for solder paste dispensing only

	The TAZ 4 uses an [https://reprap.org/wiki/Rambo Ultimachine Rambo 1.3L main board]		The TAZ 4 uses an [https://reprap.org/wiki/Rambo Ultimachine Rambo 1.3L main board] and here is the correct [[File:RAMBo_1.3L_Schematic.pdf\|RAMBo_1.3L_Schematic]]
	[Image:https://reprap.org/wiki/File:Rambo-conn-all.jpg]		[Image:https://reprap.org/wiki/File:Rambo-conn-all.jpg]
	The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.		The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.

			The TAZ 4 didn't work because Fuse F3 on the RAMBO main board was missing. It's supposed to be a [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck a 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg\|thumb\|left]]

			And now it turns on and the LCD lights up but i can't get anything to move from the controls. Tune in next week to see what happens.

Jerkey at 07:54, 12 June 2022

2022-06-12T07:54:56Z

← Older revision		Revision as of 00:54, 12 June 2022
Line 1:		Line 1:
	Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older TAZ 3 3d printer, which ~~doesn~~'t work very well as a 3D printer.		Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older TAZ 3 3d printer, which didn't work very well as a 3D printer.

	[https://download.lulzbot.com/TAZ/4.0/ Documentation for the TAZ 4 from Lulzbot corporation]		[https://download.lulzbot.com/TAZ/4.0/ Documentation for the TAZ 4 from Lulzbot corporation]
Line 5:		Line 5:
	[[File:Taz4-3d-printer.jpg\|thumb]]		[[File:Taz4-3d-printer.jpg\|thumb]]
	The extruder head from the TAZ 3 was transferred onto the TAZ 4 which will presumably make a better 3D printer. The TAZ 3 will be converted for solder paste dispensing only		The extruder head from the TAZ 3 was transferred onto the TAZ 4 which will presumably make a better 3D printer. The TAZ 3 will be converted for solder paste dispensing only

			The TAZ 4 uses an [https://reprap.org/wiki/Rambo Ultimachine Rambo 1.3L main board]
			[Image:https://reprap.org/wiki/File:Rambo-conn-all.jpg]
			The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.