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Hot Glue oopps

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Hot Glue oopps

Unread postAuthor: CannonCreator » Sat Sep 01, 2007 10:06 pm

I really messed up when I made my piston for my piston valve.

Today I put the Tee for a piston valve on a slab of wood, then melted hot glue into it. But now its dry and I can't even take the Tee off. I just threw it into the fridge to see if it will make it come off easier.

I already tryed to tap it off with a hammer, and hammer the wood, but its still not comming off. Does anyone reccomend anything?

O and im sure that when t does come off the wood, I won't be able to get it out of the Tee. Does anyone have any experience on how to get those out? Im thinking im going to have to crack the Tee apart to get it out, then buy a new tee

Thanks,

Cannon Creator
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Unread postAuthor: MrCrowley » Sat Sep 01, 2007 10:12 pm

That was smart. You're pretty much screwed. Why didn't you some cooking spray or cooking paper?

Wait why did you melt it in the tee? You're supposed to sleeve the tee with (say your using a 2" tee) 2" pipe, and you make the piston in a off-cut of some 2" pipe not in the bloody tee. How did you expect the piston the move anyway? It would get stuck on the lip found inside most tee's.
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Unread postAuthor: Marco321 » Sat Sep 01, 2007 10:14 pm

I had that before. Make sure there is nothing block the piston coming out, like glue, stuff in the Tee, stuff like that. Use hot/warm water and push the piston out with something wide to spread the force of a larger area and hit it with a hammer.

EDIT: just read MrCrowlys post and then yours again. You are in a word... fucked if you didn't use any sort of oil. And yeah you should of made it in a pipe, not in the actual tee.
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Unread postAuthor: CannonCreator » Sun Sep 02, 2007 1:20 am

lol thanks guys but 30 minutes + a hairdryer got it off the wood slab, and the piston out of the tee :D

I knew it was not going to slide, so im going to sand it down, and lube it up, it will work fine.... I hope

O ya and im also cleaning out the stickynees out of the tee right now
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Unread postAuthor: Marco321 » Sun Sep 02, 2007 1:24 am

Nice
But you cant sand hot glue..... you have to cut it with a knife
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Unread postAuthor: CannonCreator » Sun Sep 02, 2007 1:29 am

o ok thanks, I will try that tommarow. Should I use a Butter, steak, utility, or hunting knife?
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Unread postAuthor: hi » Sun Sep 02, 2007 2:22 am

i would use a razor blade. the duller the knife the harder it is to cut.
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Unread postAuthor: MrCrowley » Sun Sep 02, 2007 2:23 am

Use a heat gun, melt it so it forms a pool of glue in one spot, let it dry then scoop it up.
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Unread postAuthor: frankrede » Sun Sep 02, 2007 4:45 am

CannonCreator wrote:o ok thanks, I will try that tommarow. Should I use a Butter, steak, utility, or hunting knife?
I would use nothing short of a Rambo Style knife, with a compass built into the handle.

Srsly.
Can't you think for yourself?
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Unread postAuthor: noob of noobs » Sun Sep 02, 2007 11:34 am

If I were you, I'd just re-cast it. It'd probably provide a better fit than cutting it.
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Unread postAuthor: CannonCreator » Sun Sep 02, 2007 7:29 pm

so im supposed to use 1 1/2 PVC, put the glue in that, then sand down the pvc so it fits well in the fitting?
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Last edited by CannonCreator on Mon Sep 03, 2007 12:38 am, edited 1 time in total.
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Unread postAuthor: noob of noobs » Sun Sep 02, 2007 9:26 pm

No, spray a lubricant of some sort in the mold, like putting butter on a pan so food doesn't stick. (You might want to try putting cooking oil in a spray bottle and squirting it in the mold) Then uncap the mold, and poke the piston out using gentle persuasion (one clean hit with a hammer and dowel is usually all it takes).
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Unread postAuthor: frankrede » Mon Sep 03, 2007 12:02 am

CannonCreator wrote:wait so im supposed to use actual Straight 1 1/2 PVc pipe, put the glue in that, then sand down the pvc?
What the hell?
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Unread postAuthor: CannonCreator » Mon Sep 03, 2007 12:37 am

frankrede wrote:
CannonCreator wrote:wait so im supposed to use actual Straight 1 1/2 PVc pipe, put the glue in that, then sand down the pvc?
What the hell?


You dont understand that?
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Unread postAuthor: frankrede » Mon Sep 03, 2007 1:32 am

CannonCreator wrote:
frankrede wrote:
CannonCreator wrote:wait so im supposed to use actual Straight 1 1/2 PVc pipe, put the glue in that, then sand down the pvc?
What the hell?


You dont understand that?
I understood it completely, but the reasoning behind it was rather...absent.
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