Author Topic: Impossible to make a bot drive straight  (Read 1325 times)

Offline nightcracker

  • *
  • Posts: 505
  • Rep: 7
  • Script kiddo
    • View Profile
    • NC Labs
    • Awards
  • Skype: orsonpeters
Impossible to make a bot drive straight
« on: June 26, 2011, 06:43:05 AM »
Alright, what is going on here? I was just messing around with measuring up the new chassis for my new bot and I put the drivetrain in to see if it fit. And it can't drive straight. I tried replacing the motors, restarting the game, different wheels, but it can't drive straight at all.

Would one of you guys look at it? Here is the .bot: http://nclabs.org/downloads/testing.bot


Offline Pwnator

  • *
  • Posts: 6676
  • Rep: 15
  • Awards BOTM Winner
    • View Profile
    • http://pwnator.tumblr.com
    • Awards
  • See profile for gamer tags: Yes
Re: Impossible to make a bot drive straight
« Reply #1 on: June 26, 2011, 06:49:00 AM »
Yeah, batteries affect weight distro.
Clash Cubes 1 - Grey Matter (Runner-Up)
King of Karnage - Sideshow Freak (Runner-Up, Best Engineered)
Rust In Pieces - Paper Cut 3 (Grand Champion, Most Dangerous Bot)
Wheely Tag Tournament - Ion Thruster (Grand Champion, along with Ounces' DiSemboweLment)
UK vs USA - Dark Striker (Grand Champion)
Rust In Pieces 2 - Claymore (Runner-Up, Favourite Bot)
BBEANS 6 - Infection 4 (Runner-Up)
RA2 Team Championships - Serious Business, Skeksis (Runner-Up, along with Scrappy, S_M, and Badnik)
RA2 Team Championships 2 - The Other Stig (Runner-Up, along with Scrappy, S_M, Badnik, 090901, and R1885)
Replica Wars 3 - Abaddon (Runner-Up, Luckiest Bot)
BroBots - wheebot & yaybot (Runner-Up)
Robo Zone 2 - Dipper (4th place, Survival Champion, & Best Axle Bot)
ARBBC - The Covenant (3rd place, BW Rumble Winner, Most Feared BW)

Offline nightcracker

  • *
  • Posts: 505
  • Rep: 7
  • Script kiddo
    • View Profile
    • NC Labs
    • Awards
  • Skype: orsonpeters
Re: Impossible to make a bot drive straight
« Reply #2 on: June 26, 2011, 07:31:16 AM »
Serious? I thought batteries didn't affect weight distro at all.

Offline Pwnator

  • *
  • Posts: 6676
  • Rep: 15
  • Awards BOTM Winner
    • View Profile
    • http://pwnator.tumblr.com
    • Awards
  • See profile for gamer tags: Yes
Re: Impossible to make a bot drive straight
« Reply #3 on: June 26, 2011, 07:41:18 AM »
According to others, they wouldn't. But then I did this:

(Image removed from quote.)

Veers to the right most of the time.
Clash Cubes 1 - Grey Matter (Runner-Up)
King of Karnage - Sideshow Freak (Runner-Up, Best Engineered)
Rust In Pieces - Paper Cut 3 (Grand Champion, Most Dangerous Bot)
Wheely Tag Tournament - Ion Thruster (Grand Champion, along with Ounces' DiSemboweLment)
UK vs USA - Dark Striker (Grand Champion)
Rust In Pieces 2 - Claymore (Runner-Up, Favourite Bot)
BBEANS 6 - Infection 4 (Runner-Up)
RA2 Team Championships - Serious Business, Skeksis (Runner-Up, along with Scrappy, S_M, and Badnik)
RA2 Team Championships 2 - The Other Stig (Runner-Up, along with Scrappy, S_M, Badnik, 090901, and R1885)
Replica Wars 3 - Abaddon (Runner-Up, Luckiest Bot)
BroBots - wheebot & yaybot (Runner-Up)
Robo Zone 2 - Dipper (4th place, Survival Champion, & Best Axle Bot)
ARBBC - The Covenant (3rd place, BW Rumble Winner, Most Feared BW)

Offline russian roulette

  • *
  • Posts: 1770
  • Rep: 1
  • What year is it?!?!?
    • View Profile
    • Awards
Re: Impossible to make a bot drive straight
« Reply #4 on: June 26, 2011, 08:23:50 AM »
Hmm, never came across this... interesting.

Offline nightcracker

  • *
  • Posts: 505
  • Rep: 7
  • Script kiddo
    • View Profile
    • NC Labs
    • Awards
  • Skype: orsonpeters
Re: Impossible to make a bot drive straight
« Reply #5 on: June 26, 2011, 09:20:38 AM »
I have to do some more testing, sec, let me restart into windows.

Offline Avalanche

  • Retired.
  • Ultra Heavyweight
  • Posts: 3107
  • Rep: -34
  • Yeah, I don't know why I'm still here either.
    • View Profile
    • Awards
  • Discord: ThePootisPower#8377
Re: Impossible to make a bot drive straight
« Reply #6 on: June 26, 2011, 09:23:01 AM »
Rotate wheels. AGOD ahead.
Former DSL HW champion.
Runner-Up in The Cybernetic Colosseum HW division.
Semi-finalist in RNP: Sword of Glory.
Robogames 1 BW Runner-up.
Professional cunt.
Man of a thousand alt accounts.

Offline nightcracker

  • *
  • Posts: 505
  • Rep: 7
  • Script kiddo
    • View Profile
    • NC Labs
    • Awards
  • Skype: orsonpeters
Re: Impossible to make a bot drive straight
« Reply #7 on: June 26, 2011, 09:49:51 AM »
I confirm that batteries make a difference in weight distribution and that this difference is extremely important for drivetrains.

If your bot has a weight distribution even slightly offset to either side the bot will have a deviation towards the other side.

My testbot used for this: http://nclabs.org/downloads/testbatterydistro.bot