Page 1 of 2
Best Way to cut O-Ring Grooves
Posted: Tue Jun 27, 2006 11:09 pm
by SpudStuff
Okay. Im sure someone has answered this before but what is the best way to cut O-Ring grooves in a 4 inch Piston. I have two tight fitting 1/8 inch o-rings. I am using the bell end of a piece of three inch pipe. The pipe fits in the chamber with 6/100 of an inch gap. I dont have a lathe, drill press, or table saw. I have a dremel and a few files.
Posted: Tue Jun 27, 2006 11:20 pm
by djt
i made some nice grooves by taking a band saw, cutting a not too deep ring around the pipe, and filing from the ring. i just stuck the edge of a one side flat one side round file in the cut and filed around.
Posted: Tue Jun 27, 2006 11:20 pm
by SpudStuff
i dont have a band saw
Posted: Tue Jun 27, 2006 11:31 pm
by djt
you could do the same thing with a hand saw
Posted: Tue Jun 27, 2006 11:40 pm
by SpudStuff
please elaborate on how to do what you are saying
Posted: Wed Jun 28, 2006 12:39 am
by sgort87
I wouldn't bother using O-rings.
Posted: Wed Jun 28, 2006 10:33 am
by djt
ok im saying make a not very deep cut all the way around the pipe where you want to put the o ring. then put the edge of the file in the cut and file all the way around to widen the cut to the size you need. basically make the cut all the way around, and make it wider however you want. i would just suggest a file.
Posted: Wed Jun 28, 2006 11:35 am
by boilingleadbath
With .06" gap?
That's a bit big to go skipping the o-ring step, isn't it?
Posted: Wed Jun 28, 2006 12:34 pm
by sgort87
That's about half the thickness of standard electrical tape. There isn't much air getting past that.
Posted: Wed Jun 28, 2006 1:44 pm
by SpudStuff
Im trying to make it air tight like a check valve for best performance
Posted: Wed Jun 28, 2006 2:54 pm
by CS
Im sorry, usint a hacksaw to cut o-ring grooves??? While your at it cut your PVC with a chain saw. Beyond a lathe or table saw I think it would be fair to say your attempts are worthless. Ive always had a idear' on how to rig up a jig for a dremel though... Let me render in Rhino and Ill post.
Posted: Wed Jun 28, 2006 2:58 pm
by SpudStuff
I made a jig for my dremal using a 1/8 th inch metal grinding bit. the problem is that the bit is not 1/8 inch
Posted: Wed Jun 28, 2006 4:09 pm
by CS
Posted: Wed Jun 28, 2006 11:19 pm
by boilingleadbath
Sgort, .06", not .006"
Unless you have some 1/8" thick electrical tape!
Posted: Thu Jun 29, 2006 1:11 am
by SpudStuff
my guess is you can clamp the dremel horisontal with the surface you clamp the wood to. that is the best idea yet. i think i have some angle iron to try it with. thanks
