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Home Brew Forums > Home Brewing Beer > DIY Projects > Chillers and Stir Plates > DIY convoluted copper
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Old 12-13-2012, 12:32 AM   #11
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Here's a video:

http://youtu.be/_So8bqPPmio

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Old 12-13-2012, 12:52 AM   #12
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You make it all look easy! Great video. Thanks for sharing. I really had no clue what the method was when you posted the pics of your equipment. What angle is the hole in the board cut?

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Old 12-13-2012, 01:15 AM   #13
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+1, You're clearly an expert at this now! I also couldn't imagine how you were doing it before, so this helps.

I'm sure you don't want to take your tool apart for pictures, but if you're ever up for it I'd like to see what the thread die looks like that you're using.

I've enjoyed your recent contributions, thanks!

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Old 12-13-2012, 02:03 AM   #14
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There's a skateboard bearing that is "leaning" against the tube. I just screw it against the tube with the threaded rod with handle on it's end. Pretty simple thing really.

I made a few test holes to get the angles right. I 1st just had a knife blade against the tube to mark how fast it moves forward when rolled. I used a router to make the "machining" of the tool. No idea what the angles are though. Easy&cheap to test, if the material for the tool frame is wood. And if a proper tool is machined, it should be easy enough to figure out the angles when doing the CAD drawing.

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Old 12-13-2012, 04:30 AM   #15
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Very clever! Thanks for the video.
Cheers!

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Old 12-13-2012, 05:35 AM   #16
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I like plots too I found this one that I though I already deleted. It shows better how the CFC with the outer PVC hose performed:



The in going water was about 78C. 1st I ran it with with free flow 2.5L/min. Without any cooling water the temperature (blue line) drops a couple of degrees.
Next I opened the cooling water tap (12C). The output drop fast to about 16C.
Then I used pump to force the to be cooled water trough the CFC. The flow was about 11.5L/min and out coming water 34C.
I'm looking forward to see how fast I can cool my next patch as I'm using the new whirlpool kettle and this cooler. It should be pretty darn fast cooling for my 5 gal patch. 5 minutes?!!?

The blue line is output. The red one is the input. Others are just there to make the plot harder to read.

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Old 12-13-2012, 05:50 AM   #17
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Quote:
Originally Posted by Vesku View Post
Others are just there to make the plot harder to read.
I like your teaching style Vesku

Seriously, when you design a space capsule brewery, I want to know about it!

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Old 12-13-2012, 06:38 AM   #18
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I'm lost.. never been good at reading graphs.

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Old 12-13-2012, 07:22 AM   #19
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Quote:
Originally Posted by jsguitar View Post
I like your teaching style Vesku

Seriously, when you design a space capsule brewery, I want to know about it!

I've a new idea for instant step mashes ( > 40F/min ), but that may need zero gravity to work ... so maybe the space rocket is the next step
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Old 12-14-2012, 01:02 PM   #20
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Great video mate.

Cheers

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