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Electric Wheelchair Kit (FRC Team 1577)

by Y_Dascalu, published

Electric Wheelchair Kit (FRC Team 1577) by Y_Dascalu Oct 10, 2017
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2235Views 1060Downloads Found in Robotics

Summary

https://www.youtube.com/watch?v=bUUqksXlocs&feature=youtu.be

Typical electric wheelchairs usually cost around 2,500$, and while it could turn around the life of whoever needs it, not everyone can justify spending such a grand amount of money, and are left stuck with rented wheelchairs. Our kit connects to standard rented wheelchairs without damaging them at that slightest and makes them mobile in a simplistic manner, for a fraction of the price, around 500$.

While every part of our kit can be bought separately, and be assembled using the tools in your disposal and a 3D printer, this kit has the added bonus of being comprised of parts which are abundant with every FRC team worldwide, meaning your local FRC team would be able to assemble your newly fashioned wheelchair.

Print Settings

Printer Brand:

Printrbot

Printer:

Resolution:

1.2

Infill:

22


Notes:

All printed parts are recommended to have 15-35% infill.
~1.2mm Shell thickness
~1.2mm Bottom/Top thickness
Recommended printing material Apex PLA++ by Breathe-3DP although normal PLA and ABS do function with higher infill.

Post-Printing

PDF file with everything you need to know

FRC 1577

FRC 1577

The team 1577 was founded in 2005 by its first mentor, Eyal Hershko, who brought the FRC to Israel for the first time.
Our team was one of the 12 first teams to compete in the Israeli Regional, and since then we continued competing for the last 10 years. We have a long heritage of professionalism, Persistence and the strive to be better as a team and as individuals.

Up to now, our team has included over 150 students that each has left their own unique mark and helped to build and design the nature of our team as we know it today.

Our team includes 31 high school members and 3 mentors that lead us and guide us based on their knowledge and experience. We learn from each other and from professionals that come in their free time to help and teach us in different subjects such as mechanics, programing, electronics, CAD, and strategy.

The specific team which worked on this kit consists of 3 students, each with their own distinct skills and expertise, such as Mechanics, Electronics and Programming, but we all had part in the general planning of the kit and we all helped each other in any way we could.
Over the span of a few weeks we have had frequent meetings, most of them at our own houses and during our own personal time.
During those couple of weeks we have had roughly 5 designs and 3 working prototypes, with totally different mechanics behind each idea.

List of Components

List of Components:

A series of 3D printed parts
Arduino Uno
Sparkfun analog Joystick (COM-09032)
2 x Spark Motor controllers by Rev Robotics (REV-11-1200)
2 x Window motors - Regulation FRC Window Motor and Transmission
12 Volt Battery - Regulation FRC Battery (am-3062)
120 Amp Circuit breaker - Regulation FRC Circuit breaker
2 x 4” Friction Wheel

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Felicitari pentru idee, si eu sunt o persoana cu picioarele paralizate si am mare nevoie de o asemenea modificare a caruciorului, insa am o nelamurire. Ce motoare s-au folosit pentru propulsie?

Sunt aparent motoare ale geamurilor electrice ale unei mașini

Excellent work!!! We need more projects like this.

How would someone that is not involved with a FIRST program acquire the necessary parts? Does a supplier like Sparkfun have all of the parts available?

In the included PDF we have a list of parts you will need with their ID on their respective sites. Sadly you can't get them all from the same supplier until we start handing out kits.
Only issue might be the motors, they are pretty exclusive to first, although a different transmission is available. All you would need to do it replace the holes for the transmission.

We are now working on redoing the design for normal consumers, and generally make the chair better.

I shared the article about your project from all3dp.com on Facebook. While it got a lot of likes from friends and family, I had one extended family member comment "I need this for my kid's chair!!!!" Out of curiosity I started to research the parts (I doesn't matter too much how many sources I have to order them from). I don't know if I will try to build them one or not, but I am considering it.

Anyway, great work! I love seeing projects like this, especially 3D printable parts that can help people.

First of all, thank you very much for your support! After the first product came out we've received a bunch ideas from professionals around the world. Working around the clock here on making a newer version, and while the current one works, if I were you I'd wait for a bit.

Should be much cheaper all around, rough estimate that it should be around 200$ including the chair.

Fanstastic, I love it when people invest their time for these projects.

Just wondering if these files come with an 'Electric Wheelchair for Dummies" manual? Would love to see a kid get a speeding ticket in a 10 km zone :D

Wouldn't call it a manual for dummies but I have a PDF link that should explain everything.
Thank you ^^
I'd love to see someone out of the FIRST organization attempt to make this, although it would be difficult. But when did things like that ever stop us?

https://drive.google.com/file/d/0BwPikfSsBx4RRHV6NHNBYzZhWUk/view?usp=sharing

Hello, I would like to support this project.
I work with Inventor 2016.
I tried to open some of your Sldprt & Sldasm files with Inventor and got the message " file not a supported version".
Could you provide Inventor files of these parts?

First of all, thank you very much! We really appreciate it.
I used to work with Inventor as well before I switched to SolidWorks, both great programs. The file types you mentioned are for SolidWorks only, part and assembly.
To every object I added a .STEP file. That file type is universal and should work on all CAD programs. We are constantly working on improving everything about the chair so updates are bound to come. If any issue occurs please let me know and I'll do my best to help.

Feel free to change and improve!

I hope it is a good idea to spread the design here?

Any hints for more tags and additional information?
https://skfb.ly/6u98P
( use mouse buttons & mouse wheel to zoom, turn and move objects )

Yeah of course! Any exposure is appreciated. If the Thingiverse like is provided I see no problem getting additional information as a visitor.

Thank you very much!

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