OCCRA
Go to Post It makes me wish I would have paid attention in my physics class... - jwallace15 [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
CD-Events   CD-Media   CD-Spy   FRC-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 02-10-2002, 05:35 PM
thedillybar thedillybar is offline
Registered User
#0894 (Chargers)
 
Join Date: Jan 2002
Location: Flint, MI
Posts: 55
thedillybar is an unknown quantity at this point
Send a message via AIM to thedillybar
Calibrating speed controllers and joysticks

Do we need to calibrate both the speed controllers and joysticks? I know how to calibrate the joysticks but I'm not sure how to calibrate the speed controllers.

Also, since the speed controllers have this "built-in" deadzone, we should just use this:

PWM1 = p1_y

instead of:

if p1_y>117 and p1_y<137 then skip1:
PWM1 = p1_y
skip1:

Thanks.
  #2   Spotlight this post!  
Unread 02-10-2002, 06:46 PM
Andy A. Andy A. is offline
Getting old
FRC #0095
Team Role: Coach
 
Join Date: Jun 2001
Rookie Year: 2001
Location: New Hampshire
Posts: 979
Andy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond repute
Go to the , Innovation First website and check out the victor 883 user manual.

My one question is this: The victors come precalibrated, why do you need to recal?

-Andy A.
  #3   Spotlight this post!  
Unread 02-10-2002, 08:32 PM
Lloyd Burns Lloyd Burns is offline
Registered User
FRC #1246 (Agincourt Robotics)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1997
Location: Toronto
Posts: 292
Lloyd Burns is an unknown quantity at this point
The Victors come precalibrated for the expected out range from the RC, andy, but there may be enough variation in the joysticks at both ends and the middle, that you might want to consider checking the values sent at these positions.
  #4   Spotlight this post!  
Unread 02-10-2002, 10:50 PM
Adam Krajewski's Avatar
Adam Krajewski Adam Krajewski is offline
Registered User
AKA: Jewski
None #0857 (Superior Roboworks) / Team #0068 (Truck Town Thunder)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1998
Location: Da U.P., Eh
Posts: 83
Adam Krajewski is on a distinguished road
The speed controllers haven't needed user calibration since the Tekan (spelling?) days. The only time I've ever found it necessary to re-calibrate the Victor 883s was to regain the default calibration. All other calibrations should be done via the joystick. The pots in the joystick, however, aren't always perfect. Far from it, in fact. I use a debug terminal to check the range on the joysticks and, if necessary, adjust their value using software.

Adam
  #5   Spotlight this post!  
Unread 02-11-2002, 01:24 PM
CaptainPlaid's Avatar
CaptainPlaid CaptainPlaid is offline
Registered User
#0314 (Megatron Oracles "Big MO")
 
Join Date: Jan 2002
Location: Flint, MI
Posts: 60
CaptainPlaid is an unknown quantity at this point
Recalibrating the Victors as opposed to doing it in the software can be a problem. If you ever have a Victor fail you have to try to get the new one to match the calibration of the old one. If you do the trimming in the software you can just swap it out and be ready to go.
Remember Victors don't like metal chips much although they have been much better about it since last year.
__________________
I have not failed. I have just found 10,000 ways that won't work.
Thomas Edison
Closed Thread


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
control box archiver 2000 8 06-24-2002 12:20 AM


All times are GMT -5. The time now is 04:53 AM.

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


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi