Woodi - Revision history

Mbayyari3 at 05:13, 4 July 2020

2020-07-04T05:13:02Z

Ddowning3: /* Mechanical Design & Issues */

2019-06-30T22:51:51Z

‎Mechanical Design & Issues

Ddowning3: /* Mechanical Design & Issues */

2019-06-30T22:51:23Z

‎Mechanical Design & Issues

Cloyd6: /* Woodi */

2019-06-30T22:51:07Z

‎Woodi

Ddowning3: Completed Mechanical Design & Issues section

2019-06-30T22:44:48Z

Completed Mechanical Design & Issues section

Cloyd6 at 22:41, 30 June 2019

2019-06-30T22:41:36Z

Oso6 at 21:54, 30 June 2019

2019-06-30T21:54:03Z

Ddowning3 at 21:17, 30 June 2019

2019-06-30T21:17:01Z

Ddowning3 at 21:16, 30 June 2019

2019-06-30T21:16:41Z

Ddowning3 at 21:12, 30 June 2019

2019-06-30T21:12:15Z

← Older revision		Revision as of 05:13, 4 July 2020
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		+	[[Category: IGVC]]
	{{Infobox IGVC		{{Infobox IGVC
	\| robot_name = Woodi		\| robot_name = Woodi

@@ Line 40: / Line 40: @@
 Unfortunately, Woodi had a high center of mass (see WoodiTipping.mp4) due to the batteries being so high off the ground. This made Woodi very prone to tipping backwards when initially accelerating. The caster was also poorly designed (the wheel was not offset from the center of rotation enough) which made it hard to turn. The uneven ground at competition combined with the bad caster caused the robot to fall forward once, which damaged the SICK LiDAR mounted on the front. At competition, we added a wheelie in the back to prevent the robot from tipping too far back.
-One of the main issues mechanically with Woodi was the custom gearboxes. These were originally part of the design for [[Jaymi]] and had to be used on Woodi as there were no alternatives. The gearboxes had many issues with design, tolerances, and manufacturing, but those are detailed in [[Jaymi#Mechanical_Design_.26_Improvements]]. The main issue we encountered with Woodi was the motors were not powerful enough. Woodi moved fairly slowly, even at full speed, partially due to the motors themselves and partially due to the amount of friction generated in the gear box. Woodi would always produce high pitch whining sound with the old motors and gearbox. The motors were replaced with wheelchair motors that had built-in gearboxes (as seen on [[Jessi]]) during the 2017-2018 year for testing before Woodi was finally dismantled and deprecated.
+One of the main issues mechanically with Woodi was the custom gearboxes. These were originally part of the design for [[Jaymi]] and had to be used on Woodi as there were no alternatives. The gearboxes had many issues with design, tolerances, and manufacturing, but those are detailed in [[Jaymi#Mechanical_Design_.26_Issues]]. The main issue we encountered with Woodi was the motors were not powerful enough. Woodi moved fairly slowly, even at full speed, partially due to the motors themselves and partially due to the amount of friction generated in the gear box. Woodi would always produce high pitch whining sound with the old motors and gearbox. The motors were replaced with wheelchair motors that had built-in gearboxes (as seen on [[Jessi]]) during the 2017-2018 year for testing before Woodi was finally dismantled and deprecated.
 === Electrical Design & Issues ===

@@ Line 40: / Line 40: @@
 Unfortunately, Woodi had a high center of mass (see WoodiTipping.mp4) due to the batteries being so high off the ground. This made Woodi very prone to tipping backwards when initially accelerating. The caster was also poorly designed (the wheel was not offset from the center of rotation enough) which made it hard to turn. The uneven ground at competition combined with the bad caster caused the robot to fall forward once, which damaged the SICK LiDAR mounted on the front. At competition, we added a wheelie in the back to prevent the robot from tipping too far back.
-One of the main issues mechanically with Woodi was the custom gearboxes. These were originally part of the design for [[Jaymi]] and had to be used on Woodi as there were no alternatives. The gearboxes had many issues with design, tolerances, and manufacturing, but those are detailed in [[Jaymi#Mechanical Design & Issues]]. The main issue we encountered with Woodi was the motors were not powerful enough. Woodi moved fairly slowly, even at full speed, partially due to the motors themselves and partially due to the amount of friction generated in the gear box. Woodi would always produce high pitch whining sound with the old motors and gearbox. The motors were replaced with wheelchair motors that had built-in gearboxes (as seen on [[Jessi]]) during the 2017-2018 year for testing before Woodi was finally dismantled and deprecated.
+One of the main issues mechanically with Woodi was the custom gearboxes. These were originally part of the design for [[Jaymi]] and had to be used on Woodi as there were no alternatives. The gearboxes had many issues with design, tolerances, and manufacturing, but those are detailed in [[Jaymi#Mechanical_Design_.26_Improvements]]. The main issue we encountered with Woodi was the motors were not powerful enough. Woodi moved fairly slowly, even at full speed, partially due to the motors themselves and partially due to the amount of friction generated in the gear box. Woodi would always produce high pitch whining sound with the old motors and gearbox. The motors were replaced with wheelchair motors that had built-in gearboxes (as seen on [[Jessi]]) during the 2017-2018 year for testing before Woodi was finally dismantled and deprecated.
 === Electrical Design & Issues ===

@@ Line 30: / Line 30: @@
 == Woodi ==
-==== At Competition ====
+=== At Competition ===
 Woodi was never able to qualify or compete. Software and electrical issues were persistent throughout competition, which prevent it from ever being in a usable state. The main issues are documented down below.
-==== Mechanical Design & Issues ====
+=== Mechanical Design & Issues ===
 Woodi was designed to be a minimal working robot. It consisted of 3 main sections: the mast, the electrical box, and the "chassis". The mast was simply the mast originally made for [[Jaymi]], reattached to the electrical box. The electrical box was a simple wooden box. The sides of the box were removable panels with the RoboJackets logo on the side. Half of the top was on a hinge which allowed it to be opened to access the electronics. The back was also on a hinge so the batteries could be put in. The electronics themselves were mounted to a plastic sheet that was the initial electronics board for Jaymi, which sat unmounted in the box. The "chassis" was a jumble of 2x4 wood which held the motors and custom gear boxes. We reused the wheels and the custom caster assembly from ___.
@@ Line 42: / Line 42: @@
 One of the main issues mechanically with Woodi was the custom gearboxes. These were originally part of the design for [[Jaymi]] and had to be used on Woodi as there were no alternatives. The gearboxes had many issues with design, tolerances, and manufacturing, but those are detailed in [[Jaymi#Mechanical Design & Issues]]. The main issue we encountered with Woodi was the motors were not powerful enough. Woodi moved fairly slowly, even at full speed, partially due to the motors themselves and partially due to the amount of friction generated in the gear box. Woodi would always produce high pitch whining sound with the old motors and gearbox. The motors were replaced with wheelchair motors that had built-in gearboxes (as seen on [[Jessi]]) during the 2017-2018 year for testing before Woodi was finally dismantled and deprecated.
-==== Electrical Issues & Improvements ====
+=== Electrical Design & Issues ===
 = Additional Information =

@@ Line 2: / Line 2: @@
 | robot_name        = Woodi
 | image_path        = Woodi.jpg
-| image_alt_text    =
+| image_alt_text    = Woodi right after completion
 | year_start        = 2016
 | year_end          = 2017
@@ Line 32: / Line 32: @@
 ==== At Competition ====
-==== Mechanical Issues & Improvements ====
+Woodi was never able to qualify or compete. Software and electrical issues were persistent throughout competition, which prevent it from ever being in a usable state. The main issues are documented down below.
 ==== Electrical Issues & Improvements ====

@@ Line 5: / Line 5: @@
 | year_start        = 2016
 | year_end          = 2017
-| current_version   = deprecated
+| current_version   = Woodi
 | update_year_start = n/a
 | update_year_end   = n/a

@@ Line 12: / Line 12: @@
 | highest_finish_autonav = n/a
 | highest_finish_design  = n/a
 }}

@@ Line 30: / Line 30: @@
 | {{{hfin|}}}
 |}
 Woodi was a replacement robot, meant to take the place of [[Jaymi]] at the 2017 competition. It was a last ditch effort to bring a robot to competition that year. We started laying down the design approximately 15 hours before leaving for competition. After a couple trips to Home Depot, the effort of a few members who were not driving the next day produced the robot you see here. Despite it's sloppy appearance, Woodi was a good testing platform during the 2017-2018 year and served as a design inspiration for [[Jessi]].