Overview

[woody]

Overview

Three questions ...Yes ( but not enough in general to worry about )... Yes and Yes.

http://www.google.co.uk/search?hl=en&q=cordless+2+speed+drill+rpm&btnG=Sea rch&meta=cr%3DcountryUK%7CcountryGBhttp://www.google.co.uk/search?hl=en...btnG=Search&me ta=cr%3DcountryUK%7CcountryGB

[aero_storm]

Overview

Danke Schonne .
Will need that. Merci.

Grazie,

Alex

P.S Corrections on Danke schonn? I think I miss -spelt it.

EDIT: Will this be O.K on the torque front?
http://www.argos.co.uk/static/Produc...t%3EDRILLS.htm

(Message edited by aero_storm on October 10, 200

[typhoon_driver]

Overview

That is a corded drill and so works off 240AC not (as you are allowed in the rules) up to 36V DC.

A simple rule. If you plug the drill into the wall, it isnt useful to you. If it has a battery that needs recharging every so often and is in the voltage range of 9.6V to 36V it is useful to you.

O and stay away from hammer drills. Stopping the hammer motion is a bigger hastle than its worth.

(Message edited by typhoon_driver on October 10, 200

[aero_storm]

Overview

Ok. What about these. I know Im just throwing links around but this is a forum.

Thanks for the advice about the plug although the problem probably would have become clear once I had bought it

http://www.argos.co.uk/static/Product/partNumber/7106127/Trail/searchtext%3EDRILLS.htmhttp://www.argos.co.uk/static/Produc...rchtext%3EDRIL LS.htm

http://www.argos.co.uk/static/Product/partNumber/7111686/Trail/searchtext%3EDRILLS.htmhttp://www.argos.co.uk/static/Produc...rchtext%3EDRIL LS.htm

http://www.argos.co.uk/static/Product/partNumber/7110340/Trail/searchtext%3EDRILLS.htmhttp://www.argos.co.uk/static/Produc...rchtext%3EDRIL LS.htm

Thanks,

Alex R

[woody]

Overview

Ill throw a link back at you ...one that I gave before ...http://www.4qd.co.uk/faq/roadspd.htmlhttp://www.4qd.co.uk/faq/roadspd.html

Put in the cordless drill RPM ...1,200
You will be screwing a wheel on in place of the drill chuck so ...Gear Ratio = 1

Use a wheel dia of 100mm

Output = You tell me Alex R

Id really like you to try and use the calculators.

The above rpm and wheel size is fairly common if your using cordless drills as drive motors.

Woody

[aero_storm]

Overview

The reason I was asking for more drill links is because the speed that a 1100 rpm drill gives me with 4 inch wheels is about 13 mph. So I have, in fact, used the calculator, and done everything you have told me to do on the calculator. This is a forum. Im not as experienced as you, but if I was I wouldnt be here.

Alex

[leorcc]

Overview

quote:

Im not as experienced as you, but if I was I wouldnt be here. Thats not a great attitude, just leaching of the knowledge of others because you havent yet. So the second you know all you need youre out of here?

[aero_storm]

Overview

I knew that would be thrown back in my face.

No, thats not what I meant. I do appreciate the help Im getting. I was a bit irked due to the fact that despite trying my best I just wasnt good enough. But, hey, Im not experienced, I have built no robots, so Ill take what comes.

Alex

P.S Back to the topic now?

P.P.S Sorry :blush:

(Message edited by aero_storm on October 11, 200

[woody]

Overview

Alex R ...I happily make allowances for newbies ...young or old.

Whilst I could have given you the specs for everything ...I believe its a good idea to at least make you do some homework on the subject.

So homework done.

I think for the price range your looking at ( cheap ) perhaps 4 off 9.6v drills run @ 12v with 100mm wheels giving you approx 8 mph.

Getting the higher 1000 plus rpm will probably require you to double or treble your £ spend.

[aero_storm]

Overview

Ok, thanks. My calcs say that if I overvolt a 750rpm motor with 7cm wheels, I get 13mph. This is what I will go for. Then Ill just see what happens.

Alex

[woody]

Overview

Your overvolting by how much?
50% is really the limit...giving you 1100 rpm ish instead of 750 rpm .
10cm wheels @ this rpm gets you to 13 mph

[aero_storm]

Overview

Yup 50%. with 7cm wheels you get 9 mph.
*Sigh*.
I want to use 7cm wheels but its too slow. What a bore:sad:.
Oh well, my grandpa is coming down today and I will talk about it with him.

thanks,

Alex

[maddox]

Overview

Why work with drill motors and gearboxs?

Other options are open.

[aero_storm]

Overview

O.K. Im going to splurge on 2 1000 rpm and do you think it would be possible to chain connect it to the front wheels? Ill overvolt it by 50% and with 7cm wheels we should be off at 16mph with a lot of pushing power. Yee haw.

Please correct me if I am horrifically wrong.

Alex

[woody]

Overview

The aggravation and cost of chain + sprockets to drive the rear pair of wheels should be considered.