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Step 11Evaluation of my robot
As you may be wondering at this point about how my robot did in competition this page is a review of the design and performance. At the competition I was I did not win a single match, although they mostly went to split decision. This was due to a major design oversight.
I made the decision to put the spinning blade in the middle of the robot with 2 wedges leading up to it. I did this because of the problems other vertical spinning robots have had with side impacts on their exposed blades. When a spinning blade is hit from the side significant damage is done not only to the blade but to the entire subsystem.
The other major factor is the gyroscopic effect. When a blade spins it wants to keep the mass of the robot going in the same direction. This is amplified by the fact that the blade is off centered. By placing my blade in the center the gyroscopic effect was minimal.
The flaw in my design came from the skirts which lead into my wedges. I used light polycarbonate instead of spring steel. In the first match these skirts got damaged and I didn't have replacements. This diminished my ability to get under competitors rendering my blade useless.
If I were to do this again I would either replace the skirts with spring steel or remove a wedge all together and have an exposed blade. I feel that the risk of having a fatal hit on my blade would be worth being able to use my weapon.
I would change my batteries from SLA to NiCad to gain a few extra lbs and increase the size of my weapon motor. I also used .5" aluminum for the sizes and .25" for the base. I realized this is way overkill for this size machine and I could loose some more weight off the system by optimizing.
I am still happy with the result of this project as it challenged me in lots of ways. The other thing is I pride myself in is building robots unlike others. For better or worse my machine was different and I enjoy knowing that my idea was new into the world.
Enjoy.
I made the decision to put the spinning blade in the middle of the robot with 2 wedges leading up to it. I did this because of the problems other vertical spinning robots have had with side impacts on their exposed blades. When a spinning blade is hit from the side significant damage is done not only to the blade but to the entire subsystem.
The other major factor is the gyroscopic effect. When a blade spins it wants to keep the mass of the robot going in the same direction. This is amplified by the fact that the blade is off centered. By placing my blade in the center the gyroscopic effect was minimal.
The flaw in my design came from the skirts which lead into my wedges. I used light polycarbonate instead of spring steel. In the first match these skirts got damaged and I didn't have replacements. This diminished my ability to get under competitors rendering my blade useless.
If I were to do this again I would either replace the skirts with spring steel or remove a wedge all together and have an exposed blade. I feel that the risk of having a fatal hit on my blade would be worth being able to use my weapon.
I would change my batteries from SLA to NiCad to gain a few extra lbs and increase the size of my weapon motor. I also used .5" aluminum for the sizes and .25" for the base. I realized this is way overkill for this size machine and I could loose some more weight off the system by optimizing.
I am still happy with the result of this project as it challenged me in lots of ways. The other thing is I pride myself in is building robots unlike others. For better or worse my machine was different and I enjoy knowing that my idea was new into the world.
Enjoy.
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Jul 2, 2011. 4:32 AMdhill10
says:
what does the orange robot do at the top of this page
Reply
Jul 2, 2011. 4:31 AMdhill10
says:
how do u make the round one can u put steps on this website
Reply
1
Oct 25, 2009. 9:41 AMDELETED_madscientist167
says:
(removed by author or community request)
1
Dec 29, 2009. 9:02 PMEvilthingamabober
says:
But what if someone has an axe?....
Reply
Mar 6, 2011. 12:59 AMssureddi
says:
u can also increase thi thickness of ur propulsion wheel
Reply
Jan 27, 2010. 9:41 PMthestyrofoampeanut
says:
what if the robot has an axe?
Reply
1
Feb 3, 2010. 6:18 PMEvilthingamabober
says:
What if your own robot has a badly placed axe?
Reply
Feb 12, 2011. 10:53 AMbadideasrus
says:
what if someone else's axe was badly placing your robot?
Reply
Mar 6, 2011. 12:57 AMssureddi
says:
can cover the bot with gi sheets instead.....
Reply
1
Feb 19, 2011. 12:10 PMEvilthingamabober
says:
What if someone else's badly was robot your placing?
Reply
Aug 25, 2011. 7:45 PMvruiz3
says:
WTF?
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