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Well now... there's an interesting problem.

If you could touch the twine, a small rubber wheel comes to mind.


If you can't touch it, about the only thing left is to look at it.
That kind of...

How is he intending to attach the side pieces to the back piece?
How will the supporting structure be attached to the wall?
What is the wall made of?
What do you intend to put on the shelf (how...

uuummm... I do have a premium membership.
For the last few years.
At least I paid for one. :)

More correctly... when I click the download link, the site asks for userid/pw.
I enter that, but it always says 'incorrect...'

Kelly: I can't download the calculator because the website apparently forgot who I am.
Can you help?

I'm back. :)
And, unfortunately, meeting with the client tomorrow afternoon.

Referencing the attached pdf...

I need to rig a video wall on a pipe grid.

The grid is 6' x 6', schedule 40...

At the risk of resurrecting an old thread...

Maybe we have a terminology difference.
Both of my VFD's produce 3 phase 208Y from house hold 220 single phase.
In addition to varying the speed of...

I don't know about others, but I will often check the site for updates to a thread without logging in.
If there is something interesting, or if I want to see pics, then I'll log in.
Just sayin...

I'm intrigued... care to show a drawing of what you're talking about?

Ah, thanks.
With that description and formulas, I can write a program to iterate through a few dozen options, and probably make a graphic of how the various parameters affect the curve.

Rolling a tube.
The application is using 3/4" square tubing to form the horizontal rails of a cocktail table.

I can't get my head around this one.
I intend to build a tubing roller (different than a tubing bender).

I'm having trouble with the math/physics of the roller placement.
What does the distance...

With that kind of diameter and length, I think I would be looking at pneumatic rather than electrical.

Kelly:

Thanks for putting this together. It is very useful.
There does appear to be a small UI issue tho:

The work area for this series of calculations is cutting off the results (the red...

Interesting.
Have you actually worked on this idea?
Or is it more conjecture at this point?

Lots of parts in a system like that....

What is this for?
And, a quick sketch of what you are thinking would be helpful...

Which press are you attempting to automate?

uuuummm.... unless the springs bottom out before the handle is fully pivoted.
Like when a 'thick' object is clamped.
Then the pad pressure can get quite high.

(just jumping on the nit-picking...

Bob:

Because you are posting here, seeking this kind of knowledge,
I suspect you are dealing with the main hoist line on a simple
boom truck.

In that case, you will want to go with the design...

PDF File Attachment Click to Download ->1432


https://www.engineersedge.com/engineering-forum/attachment.php?attachmentid=1431&stc=1

Maximum Proof Load is 2 times the Working Load Limit...

Timelord is correct.
You will melt the PVC quickly.

But you have not described a jet engine.
One definition of an engine is: a machine for converting thermal energy into mechanical energy or...

You did not address this, but I feel compelled to, for the benefit of others that may not know:
there is only one acceptable way to tell if you have crimped the oval, or the stop correctly.
use a...

Welcome to the forum.


Thanks for providing an adequate drawing.


What is the precise size / shape of the aquarium itself?
(I'm thinking about mounting / COG issues.)

Well now. There is a wrinkle in the concept.
That is, describe the recoil relative to a commonly known "standard".
Interesting.

I'll still have to figure out how to quantify the force in some...

An interesting problem.
Some rambling thoughts.

Two things come to mind.

Cut power and let gravity help you out.
It is always there, always constant.

If you need to act faster than that,...