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Unread 05-02-2017, 18:54
Karibou Karibou is offline
Steel is love. Steel is life.
AKA: Kara Bakowski
FRC #0341 (Miss Daisy)
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Join Date: Dec 2007
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Re: Climb Stopping Mechanism

Quote:
Originally Posted by JesseK View Post
We tried this today. We climbed with 130lbs attached to our climber's production frame using production motors & gearing. Rope touch to Touchpad was about 4 seconds, so it wasn't a 'crash' into the top - but we did intentionally stall the motors at the top for a second or two. The ratchet wrench was held in place by one 1/4-20 bolt - the threaded end, no less. While under load we popped it loose with a large flathead screwdriver very easily. During further tests and refinement, we added a string to pop it out at the end of the tests. It also worked very well. We climbed about 30 times, and it worked every time. We'll put a 3/8" steel stud around that bolt in the future.
We ran a test today using around 150lbs and a flex-head wrench held in place in some 1x1 c-channel about halfway down the wrench. Worked like a charm; wrench folded up with no problems!
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Kara Bakowski
Michigan Technological University///Materials Science and Engineering '15///Go Huskies! #tenacity
kabakowski(at)gmail(dot)com
FRC 341 (2016-present): Mechanical/build mentor
Volunteer (2010-present): MAR Seneca '17, FTC Hat Tricks Qualifier '16, Brunswick Eruption '16, MAR Montgomery '16, MAR Westtown '16 Portcullis Victim, MAR Springside-Chestnut Hill '16, Ramp Riot '15 '16, FiM Escanaba District '14 '15, MidKnight Mayhem '13 '15 '16, FiM Detroit District '13, IRI '10 '12, FiM Waterford District '11 '12, MARC '12, CMP Galileo '11
FRC 1189 (2008-2011): Team Captain, Pit Crew, Website group leader, Team Education group leader, Proud Alum. We've got spirit, yes we do...


WMWBS '10 '11
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