Building a Better Wheelchair

[/QUOTE]I totally agree and I’m listening.. But for my first one I'm going manual, I want to know what it takes to build $1200 beach chair.. Then I'll either work on my 3rd world chair and or do a BL one.. But I will have one soon so if you can please start to think about the drive system for it that would be killer!.

Here is what has been offered up thus far by TexasSP. http://www.hobbycity.com/hobbycity/s...28eq:_70-55%29

I'll probably need at least two total of them if not one per wheel..

What do you think?? got any other recommendations??

Thanks for your time and your input as it is always much appreciated!..:smile
I can and will do better than that! but I guess I need to ask what is / should the top speed be?? that quickest one I've seen went 10mph, so how quick do I go paralyzed?? do I double it?? and what kind of runtime should I account for during a typical day ?? [/QUOTE]

The HobbyCity 180kv outrunner would be great if outrunners r as good as people say they r (never had personal experience with one). I would suggest one on every drive wheel. I must ask though, how dependable r these motors?, i mean it isn't like our rc's that u can simply pick up and take home to fix, if the chair breaks down u r stuck until someones finds u; not good if its cold outside. I think 15mph is good number to shoot for. My chair will do a 16 mile range @ full tilt(7.5mph), so i would like to at least that of range on a single charge going 15mph.

Control is also on the top of the list, it can't be a 2-speed; 1st speed is stop and 2nd speed being "OH CRAP, SO FAST MY EYES R BLEEDING! My powerchair has such fine-tuned control that i leave it on it's full power setting all the time. I can creep, go full-tilt,and everything in between all on the full power setting.

[_paralyzed_]

Originally Posted by Fast5sRevo88

Control is also on the top of the list, it can't be a 2-speed; 1st speed is stop and 2nd speed being "OH CRAP, SO FAST MY EYES R BLEEDING! My powerchair has such fine-tuned control that i leave it on it's full power setting all the time. I can creep, go full-tilt,and everything in between all on the full power setting.

all of that programming is in the controller. There are 2 or 3 manufacturers of controllers(joysticks) that all of the wheelchair manufacturers share. The sophistication and complexity of the controller will be very hard to meet, and for the controller the chair should use existing parts. The controllers can control top speed, braking speed, joystick sensitivity, joystick throw, acceleration, turning speed, turning acceleration, reverse speed, torque, more I forgot and have 5-6 different programmable drive profiles, along with being able to control several peripherals, such as tilt, recline, elevate.... unless we can do better!!!!!!!!

How many amps can a stock powerchair controller handle? Also, is a powerchairs speed restricted from the controller or the gear motors on them. I mean the best motors money can buy would still only get u to 7.5mph if the controller is what constricts it.

I've been looking, but haven't found a BL esc that can handle 150amp@48v that would go with the huge HC outrunner, not a cheaper one anyway.

[_paralyzed_]

Originally Posted by Fast5sRevo88

How many amps can a stock powerchair controller handle? Also, is a powerchairs speed restricted from the controller or the gear motors on them. I mean the best motors money can buy would still only get u to 7.5mph if the controller is what constricts it.

My controller is a 100 amp unit. We are pretty much stuck with 24v, unless there is a 24v battery the size of a standard car battery. The gearing and motor choice determine the top speed. 24 at 100 amps could double the power we have now, the x-5 tdc linked to states 900w of power. We could easily get 1800w, and with the increased efficiency of brushless we are looking good........ especially with a 2 speed!.....