perfect O ring groves no lathe

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kydavies
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Tue May 18, 2010 12:09 am

so far i haveonly used this on a wooden piston but here it is
all you need is: a vice, a pipe cutter (normally used to cut metal) and a file

1 take the piston andplace it in the vice
2 grab your pipe cutter and place it around the piston
3 make a grove on your piston about 1/8 deep
4 use the 90° edge on the file to widen the droove made by the pipe cutter until the desired depth is reached

pictures and possible a video comming in about 9 days (il be in disney land until the 26)
mikemurph wrote:yea, the ammo has been changed to a more aero dynamic projectile. it consists of the back half of a dart, and a hot glue ball
AHahahahah!!
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chinnerz
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Tue May 18, 2010 1:07 am

hmm, i rly only see this working on plastic or wood pistons. Good idea, cant wait to see pictures
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kydavies
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Tue May 18, 2010 9:59 am

ya it was only meant for wood and plastic pistons but it works really really good
mikemurph wrote:yea, the ammo has been changed to a more aero dynamic projectile. it consists of the back half of a dart, and a hot glue ball
AHahahahah!!
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Big-E
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Tue May 18, 2010 11:20 am

I bet it would work on aluminum rod too, it'll just take longer. Would wear down the pipe cutter after a while, though.
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Mr.Sandman
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Tue May 18, 2010 2:00 pm

What I thought would help would be after you used the pipe cutter, you could spin it in a drill if it was a small enough piston or you used a bolt on it and then file it like that.
Yeah, it's that important.
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chinnerz
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Tue May 18, 2010 4:39 pm

thats probably how i would do it, its also how i currently cut pipes :p sept i use a saw
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i-will
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Tue May 18, 2010 6:00 pm

that sounds great but how will you polish the grove so it will seal against the o-ring? from what i know a layer of clear coat spray paint works on most all types of pistons. for plastic i use a small flame to smooth it out. what i really want to know is if this is even an issue for anyone besides me?
WHY PAY FOR IT WHEN U CAN MAKE IT?
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rcman50166
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Tue May 18, 2010 6:38 pm

I'm assuming this is to get around the lack of a lathe?
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Gun Freak
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Tue May 18, 2010 6:43 pm

Well the title is "perfect O ring grooves no lathe", so yes.
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rcman50166
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Tue May 18, 2010 7:06 pm

lol well the whole title didn't how up unitl I clicked on it. How about interior o-rings? anyone got a way around that?
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Gun Freak
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Tue May 18, 2010 7:10 pm

I think there was a good tutorial on how to do interior grooves, but I don't remember.
How about you cut the pipe in half, then couple it back together leaving a small gap between the pipes, making a female groove.
OG Anti-Hybrid
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kydavies
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Wed May 19, 2010 5:24 pm

i got no great ideas for interior O ring grooves. :cry:



edit: how about something like a rifiling tool (nail on a broomstick) but with an ajustable stopper and a rollers on the back of the nail to keep the groove straight
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mikemurph wrote:yea, the ammo has been changed to a more aero dynamic projectile. it consists of the back half of a dart, and a hot glue ball
AHahahahah!!
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Technician1002
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Wed May 19, 2010 6:27 pm

I made one by cutting about 1/8th inch off the end of a pipe, sanding it flat and gluing it in a coupler. Sliding the o ring up to the ring of pipe, then sanding the end of the pipe smooth and gluing the pipe in the coupler right up against the o ring. It worked well for the piston in the Dragon cannon. That is a 3 inch piston with a 2.5 inch port and 2.75 inch valve seat seal.
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