Go to Post No matter their age, no matter their generation, every mentor and student must be responsible for their actions, and for understand that compromise and maturity are the paths to team success. - Eugenia Gabrielov [more]
Home
Go Back   Chief Delphi > Technical > Programming
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 08-01-2017, 09:24
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,126
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: Programming for Mecanum Wheel Chassis

Quote:
Originally Posted by yank View Post
The "top view" picture shows our robot from earlier this week when we put the wheels on.
I see only two motors. You are using four motors (one for each wheel), yes?

It looks like you are actually gearing up the speed from the motor to the wheels. Yikes. I don't know what kind of motors you are using, but if they are anything like FRC motors you need to gear them down. Way down.


Reply With Quote
  #2   Spotlight this post!  
Unread 08-01-2017, 09:30
yank's Avatar
yank yank is offline
Registered User
AKA: Kenneth
FTC #0207
Team Role: Leadership
 
Join Date: Nov 2016
Rookie Year: 2015
Location: New Jersey
Posts: 9
yank is an unknown quantity at this point
Re: Programming for Mecanum Wheel Chassis

Quote:
Originally Posted by Ether View Post
I see only two motors. You are using four motors (one for each wheel), yes?

It looks like you are actually gearing up the speed from the motor to the wheels. Yikes. I don't know what kind of motors you are using, but if they are anything like FRC motors you need to gear them down. Way down.


Yes, we are using one motor per wheel. That picture was taken before we got all the motors on.

We geared the motors down yesterday (2:1).
Reply With Quote
  #3   Spotlight this post!  
Unread 08-01-2017, 09:48
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,126
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: Programming for Mecanum Wheel Chassis

Quote:
Originally Posted by yank View Post
We geared the motors down yesterday (2:1).
What is the free speed of the motors you are using?


Reply With Quote
  #4   Spotlight this post!  
Unread 08-01-2017, 10:05
yank's Avatar
yank yank is offline
Registered User
AKA: Kenneth
FTC #0207
Team Role: Leadership
 
Join Date: Nov 2016
Rookie Year: 2015
Location: New Jersey
Posts: 9
yank is an unknown quantity at this point
Re: Programming for Mecanum Wheel Chassis

Quote:
Originally Posted by Ether View Post
What is the free speed of the motors you are using?


160 rpm (they're AndyMark NeveRest 40s)
Reply With Quote
  #5   Spotlight this post!  
Unread 08-01-2017, 11:06
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,126
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: Programming for Mecanum Wheel Chassis

Quote:
Originally Posted by yank View Post
160 rpm (they're AndyMark NeveRest 40s)
That's a gearmotor. It's already been geared way down (40:1)

Max power is only 14 watts. How fast do you need to go, and how heavy is that robot going to be?




Last edited by Ether : 08-01-2017 at 11:11.
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 15:31.

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