Go to Post Cut out the ridiculous vitriol. It's tiresome. Be productive. - Lil' Lavery [more]
Home
Go Back   Chief Delphi > FIRST > General Forum
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Reply
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 06-02-2015, 00:55
snoman's Avatar
snoman snoman is offline
Registered User
FRC #3275 (Accelerators 3134 & Regulators 3275)
Team Role: Coach
 
Join Date: Jan 2014
Rookie Year: 2012
Location: Minnesota
Posts: 371
snoman is a splendid one to beholdsnoman is a splendid one to beholdsnoman is a splendid one to beholdsnoman is a splendid one to beholdsnoman is a splendid one to beholdsnoman is a splendid one to beholdsnoman is a splendid one to behold
carpet_ recycling containers

Anyone have any info on how well or poorly recycling containers will slide when pushed across "official " carpet? The carpet we have have done it on doesn't work well
__________________
Coach of the Cass Lake Bena Regulators 3275 (Boys)and mentor Accelerators 3134(Girls)
https://www.facebook.com/accerleratorsandregulators/
https://www.youtube.com/channel/UCQU...Cr8I4wezAbMefA
Reply With Quote
  #2   Spotlight this post!  
Unread 06-02-2015, 07:32
Mark McLeod's Avatar
Mark McLeod Mark McLeod is offline
Just Itinerant
AKA: Hey dad...Father...MARK
FRC #0358 (Robotic Eagles)
Team Role: Engineer
 
Join Date: Mar 2003
Rookie Year: 2002
Location: Hauppauge, Long Island, NY
Posts: 8,835
Mark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond repute
Re: carpet_ recycling containers

The bottom of the recycle bin has a circular fitting made to screw into a larger ground platform. The circular part has a saw-tooth edge that should dig into the carpet pretty well when just pushed.
__________________
"Rationality is our distinguishing characteristic - it's what sets us apart from the beasts." - Aristotle
Reply With Quote
  #3   Spotlight this post!  
Unread 06-02-2015, 07:51
kbrowncny's Avatar
kbrowncny kbrowncny is offline
Mechanical Engineering Mentor
AKA: Kevin Brown
FRC #2168 (Aluminium Falcons)
Team Role: Mentor
 
Join Date: Jan 2011
Rookie Year: 2008
Location: New London, CT
Posts: 27
kbrowncny is an unknown quantity at this point
Re: carpet_ recycling containers

Run a science experiment to figure out the coefficient of friction. We had some of our students attach carpet to a piece of plywood, place the totes on there and tilt the plywood until they broke static friction. For the totes its about a 0.5 coefficient. Try it for the bin, its a neat way for students to apply what they learned in physics class. They were using this info to figure out how much force we needed to apply to our intake to grip the totes.
Reply With Quote
  #4   Spotlight this post!  
Unread 06-02-2015, 14:54
GeeTwo's Avatar
GeeTwo GeeTwo is online now
Technical Director
AKA: Gus Michel II
FRC #3946 (Tiger Robotics)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2013
Location: Slidell, LA
Posts: 3,667
GeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond repute
Re: carpet_ recycling containers

Quote:
Originally Posted by kbrowncny View Post
Run a science experiment to figure out the coefficient of friction. We had some of our students attach carpet to a piece of plywood, place the totes on there and tilt the plywood until they broke static friction. For the totes its about a 0.5 coefficient. Try it for the bin, its a neat way for students to apply what they learned in physics class. They were using this info to figure out how much force we needed to apply to our intake to grip the totes.
You may have to put some weight in the bottom of the RCs to get this to work - if the COF and COG are both high enough (as I suspect they are), the RC will fall over before it slides.
__________________

If you can't find time to do it right, how are you going to find time to do it over?
If you don't pass it on, it never happened.
Robots are great, but inspiration is the reason we're here.
Friends don't let friends use master links.
Reply With Quote
  #5   Spotlight this post!  
Unread 06-02-2015, 15:00
MrJohnston MrJohnston is offline
Registered User
FRC #0948 (Newport Robotics Group (NRG))
Team Role: Teacher
 
Join Date: Feb 2013
Rookie Year: 2011
Location: Bellevue, WA
Posts: 378
MrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond reputeMrJohnston has a reputation beyond repute
Re: carpet_ recycling containers

We've found that you can push the RC's across the carpet, but you have to be careful: It's important to contact them a little below their CG and to not apply too much force too suddenly... We are planning on pushing them a little bit - and preferring that they don't fall over.
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 08:01.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi