Go to Post I had a few jokes about the illness and germs at some of the competitions, but I don't want to spread them around. - tsaksa [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 25-01-2011, 09:11
sircedric4's Avatar
sircedric4 sircedric4 is offline
Registered User
AKA: Darren
no team (The SS Prometheus)
Team Role: Mentor
 
Join Date: Jan 2008
Rookie Year: 2006
Location: Lousiana
Posts: 245
sircedric4 has a reputation beyond reputesircedric4 has a reputation beyond reputesircedric4 has a reputation beyond reputesircedric4 has a reputation beyond reputesircedric4 has a reputation beyond reputesircedric4 has a reputation beyond reputesircedric4 has a reputation beyond reputesircedric4 has a reputation beyond reputesircedric4 has a reputation beyond reputesircedric4 has a reputation beyond reputesircedric4 has a reputation beyond repute
Re: Some Rookie Advice (Wait, no we're the ones that need it so...eh nvm)

The posts before this seem to cover the team structure and schedule suggestions adequately. Here are a few technical lessons learned from my rookie year 6 years ago.

1) Pin all shafts, set screws will slip. My rookie year was Aim High and we had a conveyor belt feeding the balls into our shooter and we used set screws on a flattened shaft thinking it would be fine. It wasn't.

2) Weigh the robot frequently with a good scale capable of handling the entire robot. We used a bathroom scale our rookie year, doing the half a robot at a time method and had to cut 12 lbs in the pits on Thursday. That was ugly.

3) The 28" X 38" X 60" envelope is inviolate. You have to put your robot in a box of those dimensions and there is no slop. Build your chassis an inch shorter, we do 27"X37"X59" to account for bolt heads, and unsquare frames. My rookie year we were putting our robot against a wall and bashing it to square it up to fit.

4) Use locknuts during your build. We initially used regular nuts while building, and were going to locktite everything at the end. We basically lost a couple nights, unbolting every bolt to loctite the nuts. Using locknuts at the beginning saves a lot of time at the end. You will need some locking feature on all threaded fasteners or else your robot will vibrate itself to its inevitable doom.

That's just the list of rookie mistakes I made. We had no idea what we were getting into, and didn't learn about Chief Delphi till my second year. You already have half the battle fought by knowing to ask for help here.

And this thread lists a lot of other good technical lessons learned:
http://www.chiefdelphi.com/forums/sh...ad.php?t=89568
Reply With Quote
  #2   Spotlight this post!  
Unread 25-01-2011, 10:29
P. Fuller's Avatar
P. Fuller P. Fuller is offline
Registered User
FRC #2199 (Robo-Lions)
Team Role: Mechanical
 
Join Date: Jan 2010
Rookie Year: 2009
Location: Eldersburg, MD
Posts: 20
P. Fuller has a spectacular aura aboutP. Fuller has a spectacular aura about
Re: Some Rookie Advice (Wait, no we're the ones that need it so...eh nvm)

1. When you are designing your robot, make sure that your mentors are involved at all stages in the process. They know what will work, and what will either break, not be reliable, or be unsafe. This will save you a lot of time, and tears.
2. When you are building your robot and cut materials for it, do not use a hacksaw. Use either a table saw (if appropriate), a band saw, or a miter saw. This will help you get straighter and more accurate cuts, and will make your robot look better overall.
3. Try to give your programmers as much time with a drivable robot as you can. They will not be happy if they get it the day before ship, and it will probably be a bad job (the programs will be crap.) Try to give the completed robot to your programmers at the end of Week 5/beginning of Week 6, as you will have some time to practice driving before the competition, and the programmers will have time to do a good job.
4. Most importantly, HAVE FUN! This is supposed to be something you do for fun, because you like robotics and building things. Don't make it a chore, or just something you have to do, as then it defeats the purpose of doing robotics.

Good Luck!
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 08:13.

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