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Author Topic: Speed Control help  (Read 3074 times)

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Offline DAR748Topic starter

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Speed Control help
« on: January 16, 2008, 01:01:45 PM »
Hello everyone, great forum you have here.

Well I always wanted to build a robot, but either never had time or money.
We'll now I have time & no money.   But I got the biggest part.
I got a electric wheelchair runs great but it's alittle beat up.
It has the charger onboard, new batteries, and the price was right.
Plus it will put a 300lb man a pretty good speed.  And I read here that they are good setups to start.
I pulled the joystick box off & opened it up  ;D 
From the control board to the joystick there are 5 wires. 
My question is could I remove the joystick & hook a remote right up to it, or will I have to buy or build a speed control

I'm going to start with a lawnmower / snowblower 
Yes I see alot of people doing it  but I just gota jump on the bandwagon.
I'm going to take it a step above all the internet setups by adding a deck lift. Then for the winter I have a small 2cycle snow blower that i'm going to replace the mower with.

Again Great site & thanks for any help
DD

Offline airman00

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Re: Speed Control help
« Reply #1 on: January 16, 2008, 01:11:28 PM »
from what I've heard people have put in their own speed control


BUT

open up the controller and upload pics of the inside circuit parts ( where all the electronics are) take lots of pics and then we'll help you better
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

Offline airman00

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Re: Speed Control help
« Reply #2 on: January 16, 2008, 01:14:18 PM »
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

Offline DAR748Topic starter

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Re: Speed Control help
« Reply #3 on: January 16, 2008, 01:37:14 PM »
Ya that guy really doesnt show what he did. And the control I have is different.
My background has all gas cars afew planes & a heli  so i'm alittle out of my field here, But can learn anything.
Don't want to add the pic as they are huge so you can see them clear.
http://home.insightbb.com/~danswoodshop/ch.JPG
http://home.insightbb.com/~danswoodshop/ch1.JPG
http://home.insightbb.com/~danswoodshop/ch2.JPG
Thanks
DD

Offline SmAsH

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Re: Speed Control help
« Reply #4 on: January 16, 2008, 01:50:23 PM »
hmmm...the pics are a bit blurry but i have done this before and hooked up my computer joystick to a five digit keypad...so it is possible but hard..

~smash
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Offline airman00

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Re: Speed Control help
« Reply #5 on: January 16, 2008, 01:51:33 PM »
connected to a 5 digit keypad meaning what??? what did the thing do?
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

Offline DAR748Topic starter

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Re: Speed Control help
« Reply #6 on: January 16, 2008, 03:10:20 PM »
I'm going remote control  not sure how a keypad would help me.
Will be getting a 4ch radio next week. 
As for the lift on it I think im going with a threaded rod like on a cnc.
Fast easy & FREEEEEEEEEEEE   I love that word.
What I was thinking was use servo wires & cut the joystick off.
Try & find a wire control diagram & hook right to the receiver.
Do you think this would work >?< 
Thanks
DD

Offline SmAsH

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Re: Speed Control help
« Reply #7 on: January 16, 2008, 03:43:44 PM »
hmm..yea that might work i would prob have no idea tho :D
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Offline airman00

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Re: Speed Control help
« Reply #8 on: January 16, 2008, 04:20:36 PM »
What I was thinking was use servo wires & cut the joystick off.
Try & find a wire control diagram & hook right to the receiver.
Do you think this would work >?< 
Thanks
DD

NO

ok the reciever is giving out a pulse which is will work for the servos only! The controller might take a pulse but it probably takes a different pulse and probably operates differently. don't do it
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

Offline SmAsH

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Re: Speed Control help
« Reply #9 on: January 16, 2008, 04:41:06 PM »
lol as i said i have no idea lol


~smash
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Offline DAR748Topic starter

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Re: Speed Control help
« Reply #10 on: January 16, 2008, 05:14:16 PM »
Ok what would be a "low cost" way to make it work >?<

Offline SmAsH

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Re: Speed Control help
« Reply #11 on: January 16, 2008, 05:36:13 PM »
if you could find a set thats cheap theres a way :D


~smash
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Offline Bubbles

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Re: Speed Control help
« Reply #12 on: January 16, 2008, 06:11:45 PM »
What I was thinking was use servo wires & cut the joystick off.
Try & find a wire control diagram & hook right to the receiver.
Do you think this would work >?< 
Thanks
DD

NO

ok the reciever is giving out a pulse which is will work for the servos only! The controller might take a pulse but it probably takes a different pulse and probably operates differently. don't do it


If the controller you are talking about is a speed controller for a dc motor than it will operate just like a servo (at least from a control stand point) so you can send the same signals to a motor controller that you can to a servo and the controller will convert that signal into something the motor understands (so basically a dc motor with a controller is just a really expensive modded servo)

Offline DAR748Topic starter

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Re: Speed Control help
« Reply #13 on: January 17, 2008, 09:15:23 AM »
http://www.pennyandgiles.com/docGallery/228.PDF
I found this. 
Now I'm not sure my idea will work.
What it looks like is a old manual speed control off a rc car.
The # on the control panel are Perry + Giles Pilot Type # D49669/4
But if I can't wire this cheap I'll have to make a servo plate that will let both servos swing.
Really easy idea but it ill be big & ugly, and I will also lose function of the joystick its self.

Offline Admin

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Re: Speed Control help
« Reply #14 on: January 20, 2008, 09:30:58 PM »
reminds me of this post:
http://www.societyofrobots.com/robotforum/index.php?topic=2635.0

you might also find these wheelchair posts useful

Offline ed1380

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Re: Speed Control help
« Reply #15 on: January 20, 2008, 09:34:55 PM »
what you want is a very powrful ESC.

electric speed controller

it takes a servo imput and drives the motors based on that

but sadly they are pretty expensive, unless you can take the drivers from your control board
Problems making the $50 robot circuit board?
click here. http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198

 


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