Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: bogan_ray on December 07, 2008, 01:06:50 AM

Title: rc esky
Post by: bogan_ray on December 07, 2008, 01:06:50 AM

gday everyone

for school i am going create a rc esky. i am basically going to make a metal frame with 4 wheels and sit the esky on top. though i need some help with the design of the steering. i dont know what to do. i would like to have it rear whell drive and the front wheels steer. it should be powered electronically. could anybody give me a tutorial to follow.

anything would be greatly appreciated

cheers

Title: Re: rc esky
Post by: cooldog on December 07, 2008, 07:00:06 AM

Quote from: bogan_ray on December 07, 2008, 01:06:50 AM

i would like to have it rear wheel drive and the front wheels steer.

Quote from: bogan_ray on December 07, 2008, 01:06:50 AM

i am basically going to make a metal frame with 4 wheels and sit the esky on top.

what i would suggest is your use 3 wheels to powered and one caster. instead of physically tuning the wheels use differential control
http://www.societyofrobots.com/programming_differentialdrive.shtml

Always check the main site

Title: Re: rc esky
Post by: bogan_ray on December 09, 2008, 02:46:14 AM

thanks for a reply.  i like your thinking. can you show me how i can use this without using tracks?

Title: Re: rc esky
Post by: bogan_ray on December 09, 2008, 02:59:02 AM

i mean, how do i get power to the rear wheels. plus, what sort of motor(s) do i need to push the weight of a full esky.

Title: Re: rc esky
Post by: cooldog on December 09, 2008, 07:40:36 PM

Quote from: bogan_ray on December 09, 2008, 02:59:02 AM

plus, what sort of motor(s) do i need to push the weight of a full esky.

http://www.societyofrobots.com/RMF_calculator.shtml

Quote from: bogan_ray on December 09, 2008, 02:59:02 AM

i mean, how do i get power to the rear wheels.

one motor per wheel