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	<id>https://wiki.opensourceecology.org/index.php?action=history&amp;feed=atom&amp;title=Research_Papers</id>
	<title>Research Papers - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wiki.opensourceecology.org/index.php?action=history&amp;feed=atom&amp;title=Research_Papers"/>
	<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;action=history"/>
	<updated>2026-05-16T11:26:29Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.39.13</generator>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189715&amp;oldid=prev</id>
		<title>Marcin at 12:42, 14 April 2019</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189715&amp;oldid=prev"/>
		<updated>2019-04-14T12:42:50Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:42, 14 April 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Intro=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Intro=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Academia can help OSE research critical proofs of concept for deploying the [[GVCS]] in full. See [[Research Questions]]. Here we list specific ideas to be explored in applied research papers.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Academia can help OSE research critical proofs of concept for deploying the [[GVCS]] in full. See [[Research Questions]]. Here we list specific ideas to be explored in applied research papers &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;as collaborations between OSE and academia&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Energy Efficiency Limits of 3D Printing&amp;#039;&amp;#039;&amp;#039; - current work indicates 3D printing energy costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using common, off-the-shelf 3D printers with 40W heater blocks. While prior work shows cost advantages for printing small, high-value objects - the cost advantage disappears due to the high energy cost of larger, bulk mass objects.  The current state of art for the largest availalbe off-the-shelf heater blocks is 80W for the SuperVolcano nozzle by E3D. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. Experimental data indicates 20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber efficient in an additive manufacturing, distributed manufacturing scenario. Efficiencies are shown to approach those of large-scale industrial production - direct extrusion and mold casting. This offers potential for distributed manufacturing on a small scale to be competitive with centralized production.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Energy Efficiency Limits of 3D Printing&amp;#039;&amp;#039;&amp;#039; - current work indicates 3D printing energy costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using common, off-the-shelf 3D printers with 40W heater blocks. While prior work shows cost advantages for printing small, high-value objects - the cost advantage disappears due to the high energy cost of larger, bulk mass objects.  The current state of art for the largest availalbe off-the-shelf heater blocks is 80W for the SuperVolcano nozzle by E3D. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. Experimental data indicates 20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber efficient in an additive manufacturing, distributed manufacturing scenario. Efficiencies are shown to approach those of large-scale industrial production - direct extrusion and mold casting. This offers potential for distributed manufacturing on a small scale to be competitive with centralized production.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189714&amp;oldid=prev</id>
		<title>Marcin: /* Papers */</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189714&amp;oldid=prev"/>
		<updated>2019-04-14T12:41:51Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Papers&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:41, 14 April 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l3&quot;&gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Energy Efficiency Limits of 3D Printing&amp;#039;&amp;#039;&amp;#039; - current work indicates 3D printing energy costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;standard printing techniques &lt;/del&gt;with 40W heater blocks. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Up &lt;/del&gt;to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;80W &lt;/del&gt;heater blocks &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;are available commercially&lt;/del&gt;. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Results indicate &lt;/del&gt;20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;feasible using &lt;/del&gt;additive manufacturing &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;in a &lt;/del&gt;distributed manufacturing scenario.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Energy Efficiency Limits of 3D Printing&amp;#039;&amp;#039;&amp;#039; - current work indicates 3D printing energy costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;common, off-the-shelf 3D printers &lt;/ins&gt;with 40W heater blocks. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;While prior work shows cost advantages for printing small, high-value objects - the cost advantage disappears due &lt;/ins&gt;to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the high energy cost of larger, bulk mass objects.  The current state of art for the largest availalbe off-the-shelf &lt;/ins&gt;heater blocks &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is 80W for the SuperVolcano nozzle by E3D&lt;/ins&gt;. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Experimental data indicates &lt;/ins&gt;20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;efficient in an &lt;/ins&gt;additive manufacturing&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;distributed manufacturing scenario&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. Efficiencies are shown to approach those of large-scale industrial production - direct extrusion and mold casting. This offers potential for distributed manufacturing on a small scale to be competitive with centralized production&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189711&amp;oldid=prev</id>
		<title>Marcin: /* Papers */</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189711&amp;oldid=prev"/>
		<updated>2019-04-14T12:27:18Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Papers&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:27, 14 April 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l3&quot;&gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Energy Efficiency Limits of 3D Printing&amp;#039;&amp;#039;&amp;#039; - current work indicates 3D printing costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using standard printing techniques with 40W heater blocks. Up to 80W heater blocks are available commercially. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. Results indicate 20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber feasible using additive manufacturing in a distributed manufacturing scenario.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Energy Efficiency Limits of 3D Printing&amp;#039;&amp;#039;&amp;#039; - current work indicates 3D printing &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;energy &lt;/ins&gt;costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using standard printing techniques with 40W heater blocks. Up to 80W heater blocks are available commercially. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. Results indicate 20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber feasible using additive manufacturing in a distributed manufacturing scenario.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189710&amp;oldid=prev</id>
		<title>Marcin: /* Intro */</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189710&amp;oldid=prev"/>
		<updated>2019-04-14T12:26:53Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Intro&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:26, 14 April 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Intro=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Intro=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Academia can help OSE research critical proofs of concept for deploying the [[GVCS]] in full. See [[Research &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Qeustions&lt;/del&gt;]]. Here we list specific ideas to be explored in applied research papers.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Academia can help OSE research critical proofs of concept for deploying the [[GVCS]] in full. See [[Research &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Questions&lt;/ins&gt;]]. Here we list specific ideas to be explored in applied research papers.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Energy Efficiency Limits of 3D Printing&amp;#039;&amp;#039;&amp;#039; - current work indicates 3D printing costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using standard printing techniques with 40W heater blocks. Up to 80W heater blocks are available commercially. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. Results indicate 20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber feasible using additive manufacturing in a distributed manufacturing scenario.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&amp;#039;&amp;#039;&amp;#039;Energy Efficiency Limits of 3D Printing&amp;#039;&amp;#039;&amp;#039; - current work indicates 3D printing costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using standard printing techniques with 40W heater blocks. Up to 80W heater blocks are available commercially. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. Results indicate 20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber feasible using additive manufacturing in a distributed manufacturing scenario.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189709&amp;oldid=prev</id>
		<title>Marcin: /* Papers */</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189709&amp;oldid=prev"/>
		<updated>2019-04-14T12:26:37Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Papers&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:26, 14 April 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l3&quot;&gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;=Papers=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*Energy Efficiency Limits of 3D &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;printing &lt;/del&gt;- current work indicates 3D printing costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using standard printing techniques with 40W heater blocks. Up to 80W heater blocks are available commercially. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. Results indicate 20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber feasible using additive manufacturing in a distributed manufacturing scenario.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;#039;&amp;#039;&amp;#039;&lt;/ins&gt;Energy Efficiency Limits of 3D &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Printing&amp;#039;&amp;#039;&amp;#039; &lt;/ins&gt;- current work indicates 3D printing costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using standard printing techniques with 40W heater blocks. Up to 80W heater blocks are available commercially. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. Results indicate 20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber feasible using additive manufacturing in a distributed manufacturing scenario.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
	<entry>
		<id>https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189708&amp;oldid=prev</id>
		<title>Marcin: Created page with &quot;=Intro= Academia can help OSE research critical proofs of concept for deploying the GVCS in full. See Research Qeustions. Here we list specific ideas to be explored in...&quot;</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Research_Papers&amp;diff=189708&amp;oldid=prev"/>
		<updated>2019-04-14T12:26:24Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;=Intro= Academia can help OSE research critical proofs of concept for deploying the &lt;a href=&quot;/wiki/GVCS&quot; class=&quot;mw-redirect&quot; title=&quot;GVCS&quot;&gt;GVCS&lt;/a&gt; in full. See &lt;a href=&quot;/index.php?title=Research_Qeustions&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Research Qeustions (page does not exist)&quot;&gt;Research Qeustions&lt;/a&gt;. Here we list specific ideas to be explored in...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;=Intro=&lt;br /&gt;
Academia can help OSE research critical proofs of concept for deploying the [[GVCS]] in full. See [[Research Qeustions]]. Here we list specific ideas to be explored in applied research papers.&lt;br /&gt;
&lt;br /&gt;
=Papers=&lt;br /&gt;
*Energy Efficiency Limits of 3D printing - current work indicates 3D printing costs of 50 cents per lb of printed material [https://www.academia.edu/31327768/Emergence_of_Home_Manufacturing_in_the_Developed_World_Return_on_Investment_for_Open-Source_3-D_Printers] using standard printing techniques with 40W heater blocks. Up to 80W heater blocks are available commercially. Here we explore the limits of efficiency by making several improvements: 1. using larger nozzles (1.4 mm) with 80W and 120W heaters using innovating stacking of extruder heater blocks with specialized large-flow extruders, 2. Enclosures with varying amounts of insulation; and 3., insulated heat beds with varying levels of insulation. Predictions indicate 8x efficiency gains from higher power extruders, and 3x from the combined effect of printing enclosures and insulated heat bed. Results indicate 20x energy cost decrease of 3D printing from 50 cents to 2.5 cents/lb of printed PLA assuming 10 cent/kWhr energy costs. Combined with photovoltaic-powered operation, the actual cost of 3D printing drops to 1 cent per lb, thereby making the 3D printing of large objects such as airless car tires and plastic lumber feasible using additive manufacturing in a distributed manufacturing scenario.&lt;/div&gt;</summary>
		<author><name>Marcin</name></author>
	</entry>
</feed>