Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: ussfletcher on April 12, 2008, 11:58:49 PM

Title: Building a remote control Sofa/chair
Post by: ussfletcher on April 12, 2008, 11:58:49 PM

To begin I would appreciate any help in regards to parts that I should use, as well as tips.
My project: Turn a couch or chair into a ridable vehicle
The basics are I would like it to be able to move about 500lbs (in the case of the sofa) at roughly 10-25mph
Currently I'm considering using car batteries, a transmitter, a receiver and H-bridges.. are there any other electronics I would need? Also Any help that could be provided for motors that would be powerful enough would be greatly appreciated.

Title: Re: Building a remote control Sofa/chair
Post by: airman00 on April 13, 2008, 04:57:42 AM

hmmmm

im thinking 4x4 drive using wheelchair motors

Title: Re: Building a remote control Sofa/chair
Post by: ussfletcher on April 13, 2008, 01:38:29 PM

Thats sort of something I was considering. Would two wheelchair motors be enough to power that you think? I've used deWalt drill motors on a 120lb robot which was able to move around a 180lb man sitting on it, so would there be any smaller motors that would be able to do the job (cost is sort of an issue looking for it to be <$500)

Title: Re: Building a remote control Sofa/chair
Post by: airman00 on April 13, 2008, 03:26:33 PM

yea two wheelchair motors would probably be fine also

get high power 24V ones

Title: Re: Building a remote control Sofa/chair
Post by: ALZ on April 14, 2008, 01:04:02 AM

You would have to use some very big tires to be able to go 25 mph !

Quote from: airman00 on April 13, 2008, 04:57:42 AM

hmmmm

im thinking 4x4 drive using wheelchair motors

Title: Re: Building a remote control Sofa/chair
Post by: cooldog on April 14, 2008, 03:57:25 AM

i saw a guy on discovery channel that did this only not remote control. also there is a world recored for this under worlds fastest furniture. so look around and see what others have done

Title: Re: Building a remote control Sofa/chair
Post by: airman00 on April 14, 2008, 04:34:41 AM

Quote from: ALZ on April 14, 2008, 01:04:02 AM

You would have to use some very big tires to be able to go 25 mph !

yep you are right , I forgot about the 25mph part

If you want 25mph why not just stick on a gas engine ?

Title: Re: Building a remote control Sofa/chair
Post by: ussfletcher on April 14, 2008, 05:39:26 PM

I was trying to stay away from gas engines due to noise and exhaust issues, as well as cost but maybe I'll look into it a bit more.

Title: Re: Building a remote control Sofa/chair
Post by: AndrewM on April 14, 2008, 08:52:07 PM

Don't forget about the heat of a gas engine on a wood and cloth frame.  Need to add plenty of heat insulation or you might get the record for the world's fastest fireball...

Title: Re: Building a remote control Sofa/chair
Post by: airman00 on April 14, 2008, 09:38:09 PM

there has to be some DC motor out there

keep looking

Title: Re: Building a remote control Sofa/chair
Post by: Admin on April 26, 2008, 04:22:37 PM

This will help you calculate what motor will be sufficient for your robot:
http://www.societyofrobots.com/robot_faq.shtml#select_motor