Graupner motors

[harry hills]

brushless axe

:|

how about some complicated thing that wont work?
-no, build something simple and learn from it
okay, how about some complicated thing that won't work?
-no, build something simple and learn from it
okay, how about something complicated thing that won't work?

[archie2000]

you.have stuff from e=MC hammer left over Harry
that has most of the stuff i need
hmm if a scooter motor 500 watt.is about 3-4 tons i will struggle
can you stick rare earth magnets outside a motor to give it more power?

[joey_picus]

...which scooters have you been riding that they have three tonne motors?

[archie2000]

oh hiya Joey
i was trying not to post the wrong answer so insted i overexadurated
:P

[Max]

You don't mean tonnes or tons you mean kilograms or kg- a scooter motor will way maybe 2kg. Just stick with that if you insist on making an axe- no extra magnets as the motors are powerful enough on their own, you only need one motor. Look in the good websites for beginners threads and there is a guide to make an axe bot- stick to that don't try and modify it!!!

If I was you I would go for a rammer or a thwackabot which has an axe which either goes over the top of the robot when you break (like saint I think?) or when to turn it goes around (like barnsleybot). Keep it simple, like Gary said you will probably over complicate your first bot and then you learn lots of things for your next bot, so don't waste lts of money and time and make sure you stick with the design you go with, even if you realise you should have made it differently half way through just stick with it so you h ave a robot, all robots could have been built better but they are bett built than when they are left in parts.

[jonny]

Ok, here's what you need to get

2x 14.4v gimpsons
2x robochallenge 100mm blue wheels
1x scooter motor (search eBay)
1x axe or hammer (can be purchased at local DIY store)
2x electonize 15 amp
1x electonize 30 amp
2x 12v 3700mah Nimhs (eBay)
Sheet of 15mm hdpe for making the robot
Wood screws
Jig saw for cutting hdpe (unless you have one already)

Gearing for the axe, the scooter motor will have a 6mm sprocket attached, I have a 78 tooth sprocket you can have if you want. Then all you need is the chain which can be bought at your local bike shop.

[archie2000]

easy enough

[Ellis]

Sadly, I don't think life will let you get away that easily. :wink:

I 100% guarantee it will not be easy. That said, I wish ya the best of luck. Last thing I want to do is kill enthusiasm! The fun is in working out how to make something work, and in the frantic 10 minutes before your next battle trying to fix the thing.

You'll need a shaft and bearings of some sort. There's enough in working out how to do that to keep you occupied for a week.

Edit: recommend you make a dedicated thread in which to ask all your questions.

[archie2000]

this will be my thread
do you.like my speedos :P
http://item.mobileweb.ebay.com/viewitem ... 5743317582

[Max]

I am sure they are will not take 300A- and I wouldn't get them from America especially from an eBay seller as if you have to return or repair them then postage will cost a fortune. Have you already payed for them?
I'd go for electronizes or at least the tried and tested blue marine escs?