A Design Problem

with the information given or lack of,... you could eliminate the second pulley and just use the eccentric on the motor pulley to the pin.

But its been so long since I did school work problem solving

This sounds like homework.

"There is a motor with a vertical pin that rotates at a 90 degree.?

What does this really mean?

Is that a pole, or a rod?

Maybe copy the question directly from the source?

I didn't understand that either. Is the pin the motor shaft? What rotates at 90 deg relative to what? Does it rotate 90 deg one way and then back?

This sounds like homework.

Yes! And badly translated. I even think that he/she has not given us the complete problem! There seem to be gaps.

The the key to getting a good answer is asking a good question.

what ever happened to the phrase "There's never a stupid question"

I don't know that anything happened to it.

Did I imply that the question was "stupid"?

Yes,... but here, how's... "There's never a stupid bad question"

work for the govt. for 30 yrs and you will hear lots of stupid questions.. lots.

sometimes i wonder how some of these people made it thru college. at times i

want to smack the adviser that turned a blind eye to send them thru.

work for the govt. for 30 yrs and you will hear lots of stupid question..... adviser that turned a blind eye to send them thru.

Word has it, it very hard to fire a public servant... I guess its not in the union contract to fire an employee incompetency and what you experienced is the sum of it.

You cannot imagine how true that is.

As a wise man once said "you gotta work here to believe it"

Wow,... what a coincidence, we were just talking walking about this... The hammer drops....

This won’t make MSM,... and never will.

Lie on the floor, on your side. Parallel to the motor, the pole to your side, your eyes, at parralax, will place the motor at horizontal. The pin, will move linear, in it's circumference.

You must keep the motor vertical but there is no restriction on raising or lowering it. Lower the motor so that the top circumference of the horizontal pin is just above floor level. Wrap a high friction material like rubber round the pin. Place one end of the rod onto the pin and run the motor so that the pin acts as a driven roller moving the rod over it.

As long as you're "extracting" the power from the motor by wrapping a cord around the spindle, you can route the "destination" of the power to anywhere with a series of pulleys.

A picture (or drawing) is worth a thousand words.

Each of us hoping to help has a different mental image of whatever it is you are attempting to describe, and it is probable than none of those mental images are the same as your own image...

are is

"none are"

OR

"one is"

Thanks to you and to AP#1! You got me to thinking about it... and looking it up.

http://www.latimes.com/tn-gnp-0429-a-word-please-none-is-or-none-are-both-work-story.html

After studying this and looking it up in multiple places, I have concluded that AP#1 is right! The pronoun must agree with the word(s) it replaces. In this case the words it replaces could either be "not one (singular)" or "not any (plural)", but I think the "not one" is a bit more appropriate.

Usage may differ in the UK...

Hey Deefburger, are these yours?