Question about steel strength??

Creamer · Apr 1, 2015

jodebg said:
What thickness steel did you use for the c-clamps?

I used 1/4" for the ears for the 3 pt attach points. I only tighten the nut on the bolts hand tight - just so I do not lose them - so know there is no clamping. I want the joints to be free to pivot.

the nuts can stick sometimes so i will be finding some pins that I can replace them with.

Mace Canute · Apr 1, 2015

Mace Canute said:
I may have to change my opinion! I think I will do a little more work on it first before I do so, just to be absolutely sure. (I'm stubborn!) Either way, I'll be back to either gloat or eat crow.

I'm back (sorry for taking so long) and I've proven myself wrong about the forces acting on a parallelogram 3PH linage so I'm eating crow!

To LD1, I offer my full apologies for telling you that you were wrong and I also offer my full apologies to everyone else whom I implied was also wrong.

LD1 · Apr 1, 2015

Apology accepted. Just glad to help everyone learn things and no hard feelings.

AGRIMAN · Apr 2, 2015

I wish that I had a dollar for every time a engineer told me something was going to work.

Sodo · Apr 2, 2015

AGRIMAN said:
I wish that I had a dollar for every time a engineer told me something was going to work.

Boeing gets dollars like that!

CNC Dan · Apr 2, 2015

Mace Canute said:
I'm back (sorry for taking so long) and I've proven myself wrong about the forces acting on a parallelogram 3PH linage so I'm eating crow!

To LD1, I offer my full apologies for telling you that you were wrong and I also offer my full apologies to everyone else whom I implied was also wrong.

It takes a good person to admit it when they are wrong.

I'm glad it didn't come to name calling, and insults.

LD1 · Apr 2, 2015

CNC Dan said:
It takes a good person to admit it when they are wrong.

I'm glad it didn't come to name calling, and insults.

Me too. :thumbsup:

I try to keep everything friendly. I know the internet is hard to judge "tone". But I didnt get the sense that Mace was getting hostile or stooping to a lower level. So neither did I.

Sodo · Apr 2, 2015

A linkage scuffle has a pretty specific path if at least one party understands the physics, and can figure out what element of understanding the other guy is missing. And continues to search for that missing element.

Where theres blind leading the blind then members pick a side of the fence and tend to try to build up their coalitions. Passions can be inflamed. It can be comical and/or annoying.

I enjoyed the various ways LD1 (and others) spent their TIME to create examples guiding members toward understanding it for themselves. Makes all the time wasted seem worthwhile.

Creamer · Apr 2, 2015

Sodo said:
A linkage scuffle has a pretty specific path if at least one party understands the physics, and can figure out what element of understanding the other guy is missing. And continues to search for that missing element.

Where theres blind leading the blind then members pick a side of the fence and tend to try to build up their coalitions. Passions can be inflamed. It can be comical and/or annoying.

I enjoyed the various ways LD1 (and others) spent their TIME to create examples guiding members toward understanding it for themselves. Makes all the time wasted seem worthwhile.

I agree. Even though I am an engineer i never thought a 3 PH like that before. When I read it I had to think it through a little but realized he is right. Part of that probably comes from the way he stated it - so matter-of-factly - that I had to give him the benefit of the doubt and reason it out rather than just react. This board is great for learning things!

LD1 · Apr 2, 2015

It is not time wasted at all if only one person now understands how it works. Time would only be wasted if I (and others) failed to help someone understand.

I think anyone with a reasonable understanding of practical things can reason through a 3ph and understands how it works. Those who only react instead of taking the time to reason it out, are the ones who think of it as a simple lever. Too many years of bad advise being given, makes it a challenge to undo peoples way of thinking and to get them to take the time to think it through.

Similar enough to the whole fel bleeding down and valve vs cylinder seals discussions we have had too many times to count. It is hard to get someone to re-analyze something that is contrary to what they have believed for many years, even if it is wrong.