Rebreather World - View Single Post - For the machining gurus who've done a DSV...

cstmwrks · 18th May 2008, 21:36

Quote: (Originally Posted by whoizrob)

When you machine the cage, how did you go about making the bit the mouth piece attaches to? I know I could go ala' Tom Rose with a large ball valve but how would you whip something on a simple home lathe? Make the cage from PVC and melt a bit of PVC tubing and glue it on? Delrin doesn't glue too well so I am somewhat stumped...

Rob

I've made them from PVC and aluminum and the method is the same. While in tube form I just machine off .030 to .045" except for the last 1/8 inch. In other words making all but the last 1/8 of the tube thinner. That becomes the notch that inserts nicely into the inner grove average mouth grip. PVC I heat and bend to look just like the male part of any regulator body at the point you install the mouth grip. Same with aluminum.

18th May 2008, 21:36	#3 (permalink)
cstmwrks The old ways still work. Current Rebreather/s: Home Build Other Rebreather/s: Not Bought Yet Home Build Join Date: Sep 2006 Location: Boise Idaho Posts: 238	Re: For the machining gurus who've done a DSV... Quote: (Originally Posted by whoizrob) When you machine the cage, how did you go about making the bit the mouth piece attaches to? I know I could go ala' Tom Rose with a large ball valve but how would you whip something on a simple home lathe? Make the cage from PVC and melt a bit of PVC tubing and glue it on? Delrin doesn't glue too well so I am somewhat stumped... Rob I've made them from PVC and aluminum and the method is the same. While in tube form I just machine off .030 to .045" except for the last 1/8 inch. In other words making all but the last 1/8 of the tube thinner. That becomes the notch that inserts nicely into the inner grove average mouth grip. PVC I heat and bend to look just like the male part of any regulator body at the point you install the mouth grip. Same with aluminum. __________________ Why you ask... well it's not like I have anything better to do.
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