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Old July 16, 2008, 12:36 PM
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BrainEater BrainEater is online now
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Join Date: Mar 2007
Location: Calgary
Posts: 2,516
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Hehe .

The only time I have mental instability is when I'm in stupid Calgary traffic.

Thanks , a little luck won't hurt.

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I have solved my pump problem !!! (mebbie)

This has been a rather major hurdle.I've spec'd out pumps of every type and design.I've had people laugh when I told em the required operating specs.The cryogenic pumps I have seen are many thousands of dollars.

So when in doubt , build it.

To this end , today I found and purchased just what I needed :

A 67 mm (2 5/8") 3-blade brass RC racing boat prop ;



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I'll be putting this prop inside a 3" copper tube like so :



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You can pretty much figger out where this goes......I'll be attaching the prop to a variable speed belt system and a 1/3 HP motor....I need to fabricate shaft bearings , and output barbs onto the copper tube but thats no big deal.....

Considering what the final product will be made from , I see no reason this pump won't operate at -200C let alone the -100c I want.

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Intel 3930k /rIVe/32 Gb vengeance LP/Nvidia TITAN/760/760/Intel 520's/WD raptors/etc...

Last edited by BrainEater; August 6, 2008 at 05:40 PM.