Decent motors

[psycho_fling]

i know this is a broad question and it is probably a mater of opinion but, the next feather i build way in the distance it is i want to really fast and have lots of pshing power

so what is the best motor, or motor setup?

thanks alex

[RogueTwoRobots]

Decent motors

Depends how deep your pockets are

Probably Astroflights onto 4 wheel drive would be the best option for lots of speed/pushing power but also the most expensive by the time you consider a suitable speed controller and batteries capable of supplying the necessary current.

Next to that, a pair of gold motors driving either 2WD or 4WD would be a much less expensive option, as you could still use the likes of Electronize controllers to control it. One that springs to mind is Batterbot - it seems to have a good mix of power and speed running golds through 2WD so thats certainly a viable option.

After my exams Im gonna be trialling a system for a fast featherweight pusher using the Bosch 400 motors that were on eBay. Its slightly copying Shanes idea of using the 400s in a feather but instead of running direct drive to the wheels (which is what he has in mind), Im planning on driving my wheels through friction from the motor output shaft to add a bit of speed reduction. I have absolutely no idea if it will work or not as I havent calculated anything for it yet, but I hope it will

EDIT: I dont suppose anyone knows a rough figure for rpm of a Bosch 400 on 12V?

(Message edited by K_C_R on May 09, 2007)

[leorcc]

Decent motors

Take a look at Graupner speed 900BB torque. Bonx uses these as well as I do, and with a single stage gear ratio of 5:1 @ 24v it will slam any feather into a wall.

[grant_ploughbot]

Decent motors

I agree with Leo. I use astros, and they are very tempremental. Before you find all the little things to keep them reliable youve burnt out a couple in the process.
Depending on your money, Mag motors could be a possible solution - they are used in the featherweight BattleKits. Tony Booth uses EV Warriors for drive, and that works reliably too.

[maddox]

Decent motors

Bosch 400 @12V will do about 3300 rpm, and will have 400W nominal power.

[stu]

Decent motors

Tony Booth uses EV Warriors for drive, and that works reliably too.

Not any more, think he snapped his 2nd EV Warrior shaft last weekend.

Mr Stu

[kodster]

Decent motors

I like the sound of using astroflights.

[aliboy]

Decent motors

But do you like the sound of paying for them? :wink:

[RogueTwoRobots]

Decent motors

Not any more, think he snapped his 2nd EV Warrior shaft last weekend.

Lol, yeah I was gonna mention that too - was in the first fight of the weekend as well which was supposed to be a demo fight - extremely unlucky

[kodster]

Decent motors

quote:

But do you like the sound of paying for them? :wink:

If I can get enough money I think I can wrangle them. Ill have to wait until I come up with a new design though. :wink:

[psycho_fling]

Decent motors

any sites for these graupners?

cheers alex

[woody]

Decent motors

http://www.google.co.uk/search?hl=en&q=speed+900BB+&meta=http://www.google.co.uk/search?hl=en...d+900BB+&meta=

[kodster]

Decent motors

Hmm...Ive had a look on Google and not many pages have astroflights...but these graupners sound pretty good too. Ill do my research on them.

Does anybody have a link to astroflights that can be used in a feather?

[typhoon_driver]

Decent motors

I would go for 12v gold motors with a chain and sprocket drivetrain.

You can use electronize as said earlier and you only need a single 12v battery. Remember that more powerful motors require not just bigger speed controllers but bigger higher quality batteries.

From what I have heard astroflight are a pain in the proverbial to deal with.

[jamesb]

Decent motors

hey kody, you are in Canada right?
http://www.teamwhyachi.comwww.teamwhyachi.com
TWR18 with whyachi wheels.
perfect for what you are wanting, less powerful than astros, but very nice still.
cheers