problems with o-rings

modster · 06-17-2006, 06:53 PM

i am making a block and planning to use o-ring instead of just glue everything together. Anyway, i ran into few problems. First, i am using stock cord, which mean i have to cut it into the size i need and "glue" them. From what i know, there is some kind of tool which weld them together. but it cant afford something like that. is there any other way to do this? Second, how do you guys make the goove for the o-ring(other than CNC)? the one that i am trying to make is much like a rectangle. 90 degree turn is probably a really bad idea. Do you guys have any suggestion on how to make those corners? thanks in advance

ProHandyman · 06-17-2006, 10:03 PM

As far as making your o-ring... many swimming pool/spa places have kits where you can take one of a larger circumference, cut to size, and use included "welding cement" to join. I've used this method in plumbing and spa/pool repairs... and have never had a "bad" make. I'm sure computer water cooling pressures are no more then either of the afore mentioned applications.

As far as grooving... can't really help you there... cnc or good hand done milling seems to be the only good way. Oh, and your right... a true tight 90 degree turn isn't feasible... sounds like a guarenteed leak.

Colt357tw · 06-19-2006, 02:24 AM

cant you use liquid rubber that people use to fix roofing??

06-17-2006, 06:53 PM	#1
modster Cooling Neophyte Join Date: Feb 2006 Location: new york Posts: 21	problems with o-rings i am making a block and planning to use o-ring instead of just glue everything together. Anyway, i ran into few problems. First, i am using stock cord, which mean i have to cut it into the size i need and "glue" them. From what i know, there is some kind of tool which weld them together. but it cant afford something like that. is there any other way to do this? Second, how do you guys make the goove for the o-ring(other than CNC)? the one that i am trying to make is much like a rectangle. 90 degree turn is probably a really bad idea. Do you guys have any suggestion on how to make those corners? thanks in advance

06-17-2006, 10:03 PM	#2
ProHandyman Cooling Neophyte Join Date: Jul 2005 Location: Upstate NY, USA Posts: 85	Re: problems with o-rings As far as making your o-ring... many swimming pool/spa places have kits where you can take one of a larger circumference, cut to size, and use included "welding cement" to join. I've used this method in plumbing and spa/pool repairs... and have never had a "bad" make. I'm sure computer water cooling pressures are no more then either of the afore mentioned applications. As far as grooving... can't really help you there... cnc or good hand done milling seems to be the only good way. Oh, and your right... a true tight 90 degree turn isn't feasible... sounds like a guarenteed leak. __________________ "There are certain times when one's knowledge has a limit. I suggest you watch and learn this time." A pessimist's blood type is always B-negative.

06-19-2006, 02:24 AM	#3
Colt357tw Cooling Neophyte Join Date: Jun 2004 Location: Taiwan Posts: 55	Re: problems with o-rings cant you use liquid rubber that people use to fix roofing??

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