Pulses per Microliter - Revision history

Davo: /* The HT1 heads */

2020-07-31T17:58:30Z

The HT1 heads

← Older revision		Revision as of 17:58, 31 July 2020
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	== The HT1 heads ==		== The HT1-* heads ==

	The HT1-250 and HT1-450 heads have:		The HT1-250 and HT1-450 heads have:

Davo: /* The MK Heads */

2020-07-31T17:58:11Z

The MK Heads

← Older revision		Revision as of 17:58, 31 July 2020
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	== The MK Heads ==		== The MK*-250 Heads ==

	The MK1-250 and MK2-250 heads have:		The MK1-250 and MK2-250 heads have:

Davo: /* The MK Heads */

2020-07-31T17:57:45Z

The MK Heads

← Older revision		Revision as of 17:57, 31 July 2020
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	{\| border="1" class="wikitable" style="text-align: center;" cellpadding="0"		{\| border="1" class="wikitable" style="text-align: center;" cellpadding="0"
	\|+ v4 Flow Calculations for the MK1-250 ~~Head~~		\|+ v4 Flow Calculations for the MK1-250 (shown) and MK2-250 Heads
	\|-		\|-
	\| colspan="3" \| [[File:Mk1-250_noplate.jpg\|390px]] [[File:Mk1-250_suckhole.jpg\|390px]]		\| colspan="3" \| [[File:Mk1-250_noplate.jpg\|390px]] [[File:Mk1-250_suckhole.jpg\|390px]]

Davo: /* The MK1-250 */

2020-07-31T17:57:25Z

The MK1-250

← Older revision		Revision as of 17:57, 31 July 2020
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	== The ~~MK1-250~~ ==		== The MK Heads ==

	The MK1-250 heads have:		The MK1-250 and MK2-250 heads have:

	* A 1.8° stepping motor;		* A 1.8° stepping motor;

Davo: /* The HT1 heads */

2020-07-31T17:56:43Z

The HT1 heads

← Older revision		Revision as of 17:56, 31 July 2020
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	That means one output rev gives us 35.2 mm of linear filament advance.		That means one output rev gives us 35.2 mm of linear filament advance.
	\|-		\|-
	! 1 Rev <br> Calc.		! rowspan="2" \| 1 Rev <br> Calc.
	\| 16,576 pulses <br> = 5.18 motor revs		\| 16,576 pulses <br> = 5.18 motor revs
	\| 5.18 motor revs <br> = 1 output rev		\| 5.18 motor revs <br> = 1 output rev
	\| Since 1.75 mm filament has a cross section (πr2) of 2.4 mm; <br> ~~that means that~~ for every linear mm of filament advanced, 2.4 mm3 (or 2.4 μL) will be advanced.		\| Since 1.75 mm filament has a cross section (πr2) of 2.4 mm; that means <br> for every linear mm of filament advanced, 2.4 mm3 (or 2.4 μL) will be advanced.
	Therefore, 16,576 pulses equals one revolution, which equals 35.2 mm of linear filament advancement, which equals 84.6 μL advanced.		\|-
			\| colspan="3" \| Therefore, 16,576 pulses equals one revolution, which equals 35.2 mm of linear filament advancement, which equals 84.6 μL advanced.
	\|-		\|-
	! And so:		! And so:
	! colspan="3" \| '''16,576 pulses = 84.2 μL, or a theoretical ~~196~~ pulses/μL.		! colspan="3" \| '''16,576 pulses = 84.6 μL, or a theoretical 192.4 pulses/μL.

	Experimentation during 2020 has produced average results of 175 pulses/μL for ABS at 240 °C and 1800 mm/min.'''		Experimentation during 2020 has produced average results of 175 pulses/μL for ABS at 240 °C and 1800 mm/min.'''
	\|-		\|-
	\|}		\|}

Davo: /* The HT1 heads */

2020-07-31T17:54:04Z

The HT1 heads

← Older revision		Revision as of 17:54, 31 July 2020
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	\| 16,576 pulses <br> = 5.18 motor revs		\| 16,576 pulses <br> = 5.18 motor revs
	\| 5.18 motor revs <br> = 1 output rev		\| 5.18 motor revs <br> = 1 output rev
	\| Since 1.75 mm filament has a cross section (πr2) of 2.4 mm, that means that for every linear mm of filament advanced, 2.4 mm3 (or 2.4 μL) will be advanced.		\| Since 1.75 mm filament has a cross section (πr2) of 2.4 mm; <br> that means that for every linear mm of filament advanced, 2.4 mm3 (or 2.4 μL) will be advanced.
	Therefore, 16,576 pulses equals one revolution, which equals 35.2 mm of linear filament advancement, which equals 84.6 μL advanced.		Therefore, 16,576 pulses equals one revolution, which equals 35.2 mm of linear filament advancement, which equals 84.6 μL advanced.
	\|-		\|-

Davo: /* The HT1 heads */

2020-07-31T17:52:20Z

The HT1 heads

← Older revision		Revision as of 17:52, 31 July 2020
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	1 pulse is a 1/16th microstep, <br> so 3200 pulses = 1 motor rev.		1 pulse is a 1/16th microstep, <br> so 3200 pulses = 1 motor rev.
	\| 5.18:1 planetary gear, <br> so 5.18 motor revs <br> = 1 output rev.		\| 5.18:1 planetary gear, <br> so 5.18 motor revs <br> = 1 output rev.
	\| The hobs on the motor shaft have an effective diameter of 11 mm, <br> so using 2πr (or πØ) gives us an effective circumference of 34.6 mm.		\| The hobs on the motor shaft have an effective diameter of 11.2 mm, <br> so using 2πr (or πØ) gives us an effective circumference of 35.2 mm.
	That means one output rev gives us 34.6 mm of linear filament advance.		That means one output rev gives us 35.2 mm of linear filament advance.
	\|-		\|-
	! 1 Rev <br> Calc.		! 1 Rev <br> Calc.
	\| ~~math~~		\| 16,576 pulses <br> = 5.18 motor revs
	\| ~~more math~~		\| 5.18 motor revs <br> = 1 output rev
	\| ~~more math~~		\| Since 1.75 mm filament has a cross section (πr2) of 2.4 mm, that means that for every linear mm of filament advanced, 2.4 mm3 (or 2.4 μL) will be advanced.
			Therefore, 16,576 pulses equals one revolution, which equals 35.2 mm of linear filament advancement, which equals 84.6 μL advanced.
	\|-		\|-
	! And so:		! And so:
	! colspan="3" \| '''~~xxxx~~ pulses = ~~xxxx~~ μL, or a theoretical ~~xxxx~~ pulses/μL.		! colspan="3" \| '''16,576 pulses = 84.2 μL, or a theoretical 196 pulses/μL.

	Experimentation during 2020 has produced average results of ~~xxxx~~ pulses/μL for ABS at 240 °C and 1800 mm/min.'''		Experimentation during 2020 has produced average results of 175 pulses/μL for ABS at 240 °C and 1800 mm/min.'''
	\|-		\|-
	\|}		\|}

Davo: /* The HT1 heads */

2020-07-31T17:40:51Z

The HT1 heads

← Older revision		Revision as of 17:40, 31 July 2020
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	\| NEMA 17, 1.8° stepping motor, <br> so 200 full steps = 1 revolution.		\| NEMA 17, 1.8° stepping motor, <br> so 200 full steps = 1 revolution.
	1 pulse is a 1/16th microstep, <br> so 3200 pulses = 1 motor rev.		1 pulse is a 1/16th microstep, <br> so 3200 pulses = 1 motor rev.
	\| ~~Gearing~~		\| 5.18:1 planetary gear, <br> so 5.18 motor revs <br> = 1 output rev.
	\| ~~Drive~~		\| The hobs on the motor shaft have an effective diameter of 11 mm, <br> so using 2πr (or πØ) gives us an effective circumference of 34.6 mm.
			That means one output rev gives us 34.6 mm of linear filament advance.
	\|-		\|-
	! 1 Rev <br> Calc.		! 1 Rev <br> Calc.

Admin: /* The MK1-250 */

2020-07-31T17:40:36Z

The MK1-250

← Older revision		Revision as of 17:40, 31 July 2020
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	\| NEMA 11, 1.8° stepping motor, <br> so 200 full steps = 1 revolution.		\| NEMA 11, 1.8° stepping motor, <br> so 200 full steps = 1 revolution.
	1 pulse is a 1/16th microstep, <br> so 3200 pulses = 1 motor rev.		1 pulse is a 1/16th microstep, <br> so 3200 pulses = 1 motor rev.
	\| The hobs on the motor shaft have an effective diameter 5 mm, <br> so using 2πr (or πØ) gives us an effective circumference of 15.7.		\| The hobs on the motor shaft have an effective diameter of 5 mm, <br> so using 2πr (or πØ) gives us an effective circumference of 15.7 mm.
	That means one motor rev gives us 15.7 mm of linear filament advance.		That means one motor rev gives us 15.7 mm of linear filament advance.
	\|-		\|-

Davo: /* The HT1 heads */

2020-07-31T17:37:40Z

The HT1 heads

← Older revision		Revision as of 17:37, 31 July 2020
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	* A 1.8° stepping motor;		* A 1.8° stepping motor;
	** Running in 1/16th microstep mode;		** Running in 1/16th microstep mode;
	* ~~(gearbox ratio)~~		* A 5.14:1 planetary gear;
	* (effective diameter)		* And a hobbed (toothed) shaft with an effective diameter (due to hob depth) of 11 mm.

	The table below explains how a certain number of pulses (or microsteps) on the motor will generate a certain linear advancement of filament.		The table below explains how a certain number of pulses (or microsteps) on the motor will generate a certain linear advancement of filament.
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	! Motor		! Motor
	! Gearing		! Gearing
	! Drive		! Drive Shaft
	\|-		\|-
	! Image		! Image