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	<id>https://wiki.opensourceecology.org/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Paul+Azevedo</id>
	<title>Open Source Ecology - User contributions [en]</title>
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	<updated>2026-04-06T11:24:28Z</updated>
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		<id>https://wiki.opensourceecology.org/index.php?title=Industrial_Robot_Development&amp;diff=30424</id>
		<title>Industrial Robot Development</title>
		<link rel="alternate" type="text/html" href="https://wiki.opensourceecology.org/index.php?title=Industrial_Robot_Development&amp;diff=30424"/>
		<updated>2011-06-05T21:38:44Z</updated>

		<summary type="html">&lt;p&gt;Paul Azevedo: Adding some of the team&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{ToolTemplate|ToolName=Industrial Robot}}&lt;br /&gt;
----&lt;br /&gt;
&lt;br /&gt;
=Developers=&lt;br /&gt;
&lt;br /&gt;
Paul Azevedo&lt;br /&gt;
&lt;br /&gt;
Yoonseo Kang&lt;br /&gt;
&lt;br /&gt;
Wonjohn Choi&lt;br /&gt;
&lt;br /&gt;
Joshua Lee&lt;br /&gt;
&lt;br /&gt;
Roberto Bortolussi&lt;br /&gt;
&lt;br /&gt;
=Progress Report=&lt;br /&gt;
&lt;br /&gt;
General Developmental Bill of Materials Completed&lt;br /&gt;
&lt;br /&gt;
Mechanical Design Illustrated&lt;br /&gt;
&lt;br /&gt;
Denavit-Hartenberg Kinematic Parameters Completed for Sample Design&lt;br /&gt;
&lt;br /&gt;
Electrical Design Illustrated&lt;br /&gt;
&lt;br /&gt;
Hydraulic Design Illustrated&lt;br /&gt;
&lt;br /&gt;
Stepper Motor - Needle Valve Bracket Design Illustrated&lt;br /&gt;
&lt;br /&gt;
Systems Engineering Diagrams Added&lt;br /&gt;
&lt;br /&gt;
=Task List=&lt;br /&gt;
&lt;br /&gt;
Continue design optimization and understanding through research and collaboration&lt;br /&gt;
&lt;br /&gt;
Research into design, construction, and mounting of shaft encoder&lt;br /&gt;
&lt;br /&gt;
Research into design, construction, and mounting of gearbox&lt;br /&gt;
&lt;br /&gt;
Research into microcontroller programming&lt;br /&gt;
&lt;br /&gt;
Complete force analysis on different mechanical designs &lt;br /&gt;
&lt;br /&gt;
Complete calculations for required specifications of various industrial robot components (eg. required pressure and flow from pump, required torque from motors)&lt;br /&gt;
&lt;br /&gt;
Complete all CAD files of the industrial robot&lt;br /&gt;
&lt;br /&gt;
Complete fully detailed bill of materials&lt;br /&gt;
&lt;br /&gt;
Complete build instructions&lt;br /&gt;
&lt;br /&gt;
Complete user&#039;s manual&lt;br /&gt;
&lt;br /&gt;
=Design Rationale=&lt;br /&gt;
&lt;br /&gt;
*Using hydraulic drive over electric drive: electric drive requires complicated electronic circuits, requires a high reduction gearbox (such as harmonic drive, which is complicated to design and fabricate), and is not as scalable as hydraulic drive (for very high loads).&lt;br /&gt;
&lt;br /&gt;
*Needle valves and solenoid valves over proportional servovalves: proportional servovalves experience coil heat buildup that changes the resistance of the solenoid hence diminishes its accuracy of control; proportional servovalves also are more complicated to design and fabricate.&lt;br /&gt;
&lt;br /&gt;
*Stepper motors to allow the electronic control of needle valves: eliminates need to have closed-loop system for needle valve control while maintaining high accuracy through stepping.&lt;br /&gt;
&lt;br /&gt;
*Two plate, four pillar design for foundation: simple to design, fabricate, and assemble, does not require casting with molds while maintaining high degree of stability.&lt;br /&gt;
&lt;br /&gt;
*Angles and bars frame design: simple to design, fabricate, and assemble, does not require casting with molds while maintaining high degree of stability akin to the designs of existing commercial industrial robots.&lt;br /&gt;
&lt;br /&gt;
*Spur gearbox: High efficiency, minimal axial force transmitted onto shaft; simple to design, fabricate, and assemble relative to other gearbox types (such as planetary or harmonic).&lt;br /&gt;
&lt;br /&gt;
*[Type of Encoder]&lt;br /&gt;
&lt;br /&gt;
[[Category: Industrial Robot]]&lt;/div&gt;</summary>
		<author><name>Paul Azevedo</name></author>
	</entry>
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