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Unread 20-02-2010, 21:24
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Nigel Nigel is offline
Fuher Glitterpaint
AKA: that's the nickname I got for sarcasm
FRC #3136 (Official Robot Constructors of America (ORCA))
Team Role: Programmer
 
Join Date: Jan 2010
Rookie Year: 2010
Location: Ashland
Posts: 43
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Re: Who had to rebuild?

Quote:
Originally Posted by 3286 View Post
Not sure it would qualify as a rebuild, but a week or so ago, we decided to see what would break before the regional, so we purposely took the bot at full speed over a game field bump about 10 times each direction. We managed to crack one corner of the wooden floorboard, pulled one wire loose, slightly warped an omni wheel but we never killed the bot.

Our goal was to see if it would flip over, but since we had already decided to not turn on the side of the hill, it wasnt an issue. The center of gravity is nice and low so tipping over endwise shouldnt be an issue.

We have been using nylock nuts on all our major structural fasteners, easier than trying to remember what got loctite and what didnt, and they have not shaken loose so far.

Mike
yeah thats what we did... backed our bot up to the back of one bump and rammed it full speed (~10 ft/s) into the other... it got over... but due to the way our mounts are, they were weak and bend on impact... then our bot went over and due to warped wheels and a bit of topheavy it flipped... nothing fell out though (velcro ftw) but yeah hopefully it should be MUCH stronger now... we changed the supports to be hollow aluminum tubes and added triangle supports... and are using bolts+nylock nuts to secure everything... here's hoping its invincible now
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