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Unread 07-25-2005, 01:07 PM   #9
R.A.Floyd
Cooling Neophyte
 
Join Date: Jul 2005
Location: Sofia, Bulgaria
Posts: 1
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Quote:
Originally Posted by Long Haired Git
..Nah - my block will be very cheap. Just the material cost of a copper top is more expensive than the machined acrylic top, let alone the effort to drill and tap barb holes.....
So, when you machine the acrylic top, why don't you make a oval or rectangular (the last one is easier/cheaper to produce) chanel for the O-Ring right into the acrylic ?
If your top is thick enough, and you leave adequate space between the O-Ring's channel ane the acrylic sides - the construction will be quite strong.

Despite of the thickness of the O-Ring, it can be smashed so the two parts of the block will be practically touching each other IF the channel is accordingly machined. How to do this - look at the attached drawing (a well known picture about O-rings indeed, and I've tested it with a lot of them).
Attached Images
File Type: jpg O-RING.jpg (8.1 KB, 18 views)
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