Graupner motors

[harry hills]

Re: Graupner motors

at last!
cheap and cheerful standard drill motors

[Ellis]

Re: Graupner motors

I wouldn't recommend using hammer-action drills. More fiddly loose bits and you don't have a use for the hammer anyway.

It's perfectly reasonable to dish out on some higher quality drills but until you start paying significant amounts of money, they're all going to be essentially the same. Also, if you go beyond cheap and cheerful (talking 10-15 quid) you'll start to get drills with two speeds, which simply adds weight and more to go wrong.

Honestly mate, you won't be disappointed with standard drills. If you really want a decent pusher, get four 12v units and stick 18v through them. You will be surprised.

Can't wait to see a start to your build. :P

[razerdave]

Re: Graupner motors

If you can take out the 'hammer' function then those drills will be perfectly good , not sure how to go about that mind you .

I think and extra 3.6v giving them 1HP is a bit optimistic . Astrofight motors are the only FW motors that get anywhere near 1HP and they are like £100 each.

[jonny]

Re: Graupner motors

The gearboxes couldnt take 1hp even if the motors dished it out, Argos 12v drills or tesco 9.6v ones are good.

[ewan]

Re: Graupner motors

Yes, you've just said a lot of stupid things, again.

[archie2000]

Re: Graupner motors

they sound good to experiment with. if i can find out some more information on what you need to mod them etc
but if they won't work,
Argos you.better have some drills

[archie2000]

Re: Graupner motors

When drilling into softer materials, the hammer mode can be deactivated, allowing use of the tool like a regular drill.

i will.check next time i.go to b&q if they can be disactivated.
but even on 12v to go easy on the drill it will still have power.
and enough power for me is far too much.
i know its not a simple regular drill but i am curious to look into how these do in combat

[harry hills]

Re: Graupner motors

why not just use what you know works, if your gonna have to modify it to work as a regular drill motor, why not use a regular drill motor? 12v drills on 18v is a pretty nice, basic drivetrain

[Anttazz]

Re: Graupner motors

After a quick scan of that website I notice that the 12v drill is also rated at 550W, even if it is wrong, that motor is supposedly the same as the one you linked us to, cheaper and doesn't need modified in any way.

I'm starting to think you're doing this on purpose...

[plargen]

Re: Graupner motors

try these drills the about the same price and much better build quality than the Argos 1s and faster and no hammer function

http://www.ebay.co.uk/itm/330398469610? ... 1423.l2649

[Anttazz]

Re: Graupner motors

They're nearly double the price. Would be better off with Gimsons if you're going to spend that money.

[Laser]

Re: Graupner motors

hamer drills wont work.
Get the simple £12 drills.
It isnt always about horse power, grip makes a massive difference

[archie2000]

Re: Graupner motors

ok
just thaught it would work
and I'm not doing it on purpose, it is a cordless drill like you said.

[archie2000]

Re: Graupner motors

i know it sounds like i wont take anyones advice but i keep mithering about the things ive found/want because nobody has realy given me a reason as to why hammer drills wont work.
if they work as perfect cordless drills why wont they work in a robot.
i am perfectly happy with using argos drills but i made this thread to try to answer my questions and i havent started the build yet. so i just want answers to my questions.
have cordless hammer drills been used before.
if not and there is no obvious reason why they wont then there isnt much harm in experimenting with some cheap ones.
if there is a reason can someone just tell me and i will give up on the idea
thanks

[typhoon_driver]

Re: Graupner motors

Because you have to permanently disable the hammer mechanism. They are setup differently inside and are a pain in the arse. Believe me, I've played about with some. They work as drills because they are nicely housed in a plastic casing, something that you will be removing along with most of the mechanism that keeps them from hammering away. Stick to regular drills.