Open Source Ecology Heat Exchange Coil Winding, 3 Feb 2012

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From YouTube: Pancake coil 1

Description

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A

Now we're going to just clamp this. Why.

B

Did you have to make the special rollers for the pipe bender, so you bend it in the particular orientation? Why couldn't use the stock ones in your hand, roller hand bender? Oh.

A

They're made for flat stock, oh they're,.

B

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Just for flat stock and and solid round, like.

B

Wire gauge always that would otherwise just.

A

Crimp it it just bends, but.

B

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You need that you need that diameter that radius made in there to hold your tubing to.

B

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B

C

A

We let Tom do the rest of the talk excellent.

A

So here we go. We clamp this loosely in here. It's.

B

Very important you put some drag on it so that you overcome part of the modulus of elasticity, so you don't have spring back all.

A

Right now, here's a.

B

Little big words big word, sir yeah. That's called Hookes modulus of elasticity. There.

A

You go oh well, this is how we hold tight so that we can draw around to ascertain the jameel that hole or.

B

How'd you do if I drilled.

A

It and then use the hand, die grinder and a carbide burr. Okay,.

B

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Make the angle and.

C

Hookers your course, your bolts right.

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Ok there now we should be able to get something.

A

And tighten them initially with that, just because it's quicker and we use the hand that the ratchets took to make sure they're snug.

A

And with our new pee in there we should be able to. We should be able to use our bolts a little more announce that I having to change them out. Quite so often, it has a tendency to think that the torsional forces have a tendency to to twist ins and bend the bowls.

A

Now we look down here and we can see.

B

Get your game face on.

A

I'm just a little more action here, I, don't usually stand around very well here. Waiting yeah.

B

I understand the feeling.

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Three after us.

A

A good gal I was waiting for mark.

B

Alright, this is it.

A

We're not doing a right-handed and left-handed.

A

You're doing right and left than these, these don't match.

A

How many did Marcin do that margin hasn't done anything. Yet. This is his first one. What we've been doing all morning? Okay, stop.

B

Oh the technique here, so this is the proper spacing.

A

Only one thing you really need to know.

B

What does that? Don't.

A

Stick your fingers in there.

B

We did a sample of the pre heater coil just before and then fix this key way.

B

Is this how it works here, carry a double this first.

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A

The same side is that otherwise you get a buckling too.

A

Because it's not the same with this other a tendency to wander up and downs.

A

Don't believe in the last little bit, yeah.

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A

I don't know, I can't see good, just peeked out here.

B

Right there it's right there peeping out.

A

B

This thing's a major spring force. It might be a good idea to put some safety and there or something or long.

A

As it's inside this guy.