Haha, Idea!

[teamhunt]

Hi All.
Im thinking about a middleweight, and just wondering wether the idea i have in mind is okay to do and will be cheep (Under £2000 anyway!)
My idea is to get a granny scooter off of eBay, use the motors ect. and that will be my electronics, of course ill have to get the radio gear ect.
For armour, im not sure, we have some aluminum (What were using on Hunter) but not that much, so im not sure what we should use, if it comes to it, id be happy to use wood! (Cheep!)
Im not planning on a weapon, maybe just a wedge.
Can i develop on this?
Thanks
Matt

[dmac]

Haha, Idea!

For a fun machine, get an old wheelchair and use the motors and gearboxes, easey to mount and usually cheap.

[teamhunt]

Haha, Idea!

Okay, then take to rest of the chair to a scrap heap?

[john_frizell]

Haha, Idea!

If you get one that runs with a joystick then you can just mount two servos to run the joystick and thats your steering done. Ive never done it but some teams back in series 4 did and it worked well for them. Plywood makes great armour. Its cheap, easy to work and you probably have the tools already.

[teamhunt]

Haha, Idea!

Might need help with the servo steering.

[robotnut]

Haha, Idea!

sorry to jump on your post but im sure my question will help you also. :wink:
can you get good speed from wheelchair motors, i have seen some on ebay that are 24volts, would you need to run these on 36 for more speed, or can i modify them easily. Or would they be good enough for a first competition robot as they are.

[dmac]

Haha, Idea!

Depending on which ones they are, you can modify the gearboxes and get a bit more speed, or overvolt them.Be good for a first bot, easy to mount come with wheels, not too competitive, good to learn on, get experience of driving heavyweights.

[Guest]

Haha, Idea!

Are the motors in Leveller from a wheelchair Dave?

[xtreme]

Haha, Idea!

Glad theres more people getting into MW. cant wait to build mine. i have 2 wheelchair motors but there big and heavy and only 150w. im going to look for something else.

[dmac]

Haha, Idea!

Hi James

The motors in Leveller are from Roger Plant, on modded S type gearboxes. Think the may be Littons.

[RogueTwoRobots]

Haha, Idea!

A middleweight is something Id like to try but not got the funds or tools/space for it at the moment. Got a couple of nice Bosch 400s needing used though so I cant think of a better way

[Gaseraki]

Haha, Idea!

http://pl.youtube.com/watch?v=4DxgA2Qd0dwhttp://pl.youtube.com/watch?v=4DxgA2Qd0dw

This is me and Dave Lawries heavy on wheel chair drive. Has around the same speed as ewe2 on 24volts. Was thinking about over volting to 36 for that extra kick. But thats up to Dave Lawrie as he has something special planned for the motors.
Weighed in at 99.6kg but thats because it had stupidly sized batteries. SLA weighed around 25kg each 12volt pack.

[robotnut]

Haha, Idea!

marco, is that standard wheel chair motors.

[leorcc]

Haha, Idea!

Andy, yes they are. Bog standard wheelchair motors and wheels are still a good way to start with middle and heavyweights. Specially on 36V.

[Gaseraki]

Haha, Idea!

To be honest, I dunno. It was freaking huge wheel chair and so are the motors.

http://www.usatechguide.org/itemreview.php?itemid=569http://www.usatechguide.org/itemreview.php?itemid=569

I have seen some other Wheel chair motors and the ones in monolith were a lot bigger.

What I can say is monolith ran a lot quicker without the wheel chair contollers. Invest in a wotty or use servos and relays (what I used). The chassie of the wheel chair was also awesome. Really good steel construction.

http://img46.imageshack.us/my.php?image=dsc00152sa9.jpghttp://img46.imageshack.us/my.php?image=dsc00152sa9.jpg
http://img148.imageshack.us/my.php?image=dsc00151lv0.jpghttp://img148.imageshack.us/my.php?i...sc00151lv0.jpg