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Unread 17-09-2004, 04:43
OneAngryDaisy OneAngryDaisy is offline
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Join Date: Oct 2002
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Re: Best frame building material

Quote:
Originally Posted by Cory
80/20 is only light if you weld it.



Some of the problems with extrusion include the fasteners slipping. This was particularly evident on both robots in that the wheels would continually slip from their intended mounting points. It's easily fixed, but a pain in the $@#$@#$@#. You really have to be sure to check all the time that your connectors are securely fastened. By the time we got to Cal Games in 03', the robot was literally coming apart because everything was so loose.

Cory
That happened to us our first year of using extrusion (2003).. after two regionals our robot was in pretty good shape, but after going through playoffs at Nationals- and keep in mind we took Galileo- our entire frame was warped. The extrusion slipped so much, Daisy 2 is more dented than the average metal canoe. Extrusion was awesome, but the thing that blows my mind is: we had a simple drive system and simple one-motor arm, but we still maxed out at 130 pounds. It's too darn heavy.


Quote:
Originally Posted by Rickertsen2
Thats a pretty good idea.. Did you have to sand off the anodization first?
We did that this year, and it should've helped except for the extreme weight loss we had to undertake. lost 15 pounds at chesapeake, our frame became so weak and vulnerable before we even set foot on the field. To make things worse we had a faulty control board for our first 5 or so rounds so our robot (dual speed worm gear drive) literally bent its own frame before we could even really compete. Miss Daisy III is crooked now, but what can I say, last year's Miss Daisy only had a T on, and the original Daisy was topless.
 


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