Forums: Discussions for entrepreneurs and small business.

Anyone here know much about rotary motors? A thought just occurred to me that I would like to bounce off someone who knows more about this sort of thing than I do.

If you know about printing technologies that would work too. I mean, real printing presses (flexo-litho-webb), not laser printers or copiers. (e.g., how much torque does an offset roller require, & what`s that curve look like?)

thanks,
—paula

Rabbit?
This is an odd question... but yeah I know something about rotary motors... I took one semester in my DCE back in the days...


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Edgar Monroy
Web Developer / Owner / Consultant
When starting your own business the need to "know-how" is greater than money!
http://www.nuevolution.net

Okay... how small do you think this motor could be shrunk down? Small enough to run the rollers of a printing press or would it be too powerful?

If that motor could be plugged into a printing press, it seems like the efficiency gains would be so great you could run the press off a hamster wheel. Wouldn`t make a lot of difference on smaller presses but when you get up to 8-color offset, webb presses, and other industrial-scale printing the savings in downtime losses could be phenomenal.

—paula

Well, I`m pretty sure it can be shrunken down to a miniature size, just not with that much torque.
This is the definition of torque: Torque is a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis, which we will call the pivot point, and will label `O`. We will call the force `F`. The distance from the pivot point to the point where the force acts is called the moment arm, and is denoted by `r`. Note that this distance, `r`, is also a vector, and points from the axis of rotation to the point where the force acts.

SO.. yes it can, but why?




-------------------------

Edgar Monroy
Web Developer / Owner / Consultant
When starting your own business the need to "know-how" is greater than money!
http://www.nuevolution.net

Obviously it won`t have the same level of torque, if it did the press sheets would come blasting off the press, slice through the wall and decapitate passers-by out in the parking lot. My interest is in duplicating the torque curve on a much smaller scale. Yes I do know what torque is, thank you, I had rubber-band airplanes as a kid too. As I said in my previous post, the efficiency gains of a motor like that in a big press could potentially be enormous, and could potentially save a print shop owner tens or hundreds of thousands of dollars per year in downtime losses depending on how big the operation.

—paula

well, first of all, the printing press motors are electric. the efficiency is already there... they are usually 220 Volts....


-------------------------

Edgar Monroy
Web Developer / Owner / Consultant
When starting your own business the need to "know-how" is greater than money!
http://www.nuevolution.net