End of rocket launcher

A place for general potato gun questions and discussions.
flamerz14
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Thu Apr 19, 2007 9:13 am

thrasmussen wrote:3x4" bell reducer with a 4x2" Bushing turned around so that the funnel shaped part is facing backward. Looks great! Needs a bit of modification to the bushing to make it go in backwards though.
so how do i modify it?
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thrasmussen
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Thu Apr 19, 2007 3:22 pm

You just grind down the flange that keeps it from going in backwards.
flamerz14
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Fri Apr 20, 2007 4:33 am

erm.. sorry i don't get you.
souljahz_unite
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Fri Apr 20, 2007 5:44 am

the best way i think is the hot oil. it works and you wont get flaming pvc ._. all the hot oil does is soften up the pvc to be 'modeled' in a way. Here the link to the spudtech tutorial :

http://spudtech.com/content.asp?id=26

That has a step by step and a what to do and what not to do. Id reccomend it just because his results looked decent. I plan on trying it as soon as i get myself some pvc pipe.
flamerz14
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Fri Apr 20, 2007 6:04 am

Wow, thnks! but now the only problem is the 3'' pipe im using... the flaring proces and my pipe- could it really work?
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frankrede
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Fri Apr 20, 2007 6:53 am

WHat about flanges!
No oil or modding involved.
Current project: Afghanistan deployment
flamerz14
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Fri Apr 20, 2007 6:54 am

Great idea frankrede.. just wanna ask- dont flanges have an open hole at the end?? :o
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thrasmussen
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Fri Apr 20, 2007 7:33 am

flamerz14 wrote:erm.. sorry i don't get you.
You remove this:
And if you get the right one it will have a bowl/cone shape to it in the rear.
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Last edited by thrasmussen on Fri Apr 20, 2007 7:34 am, edited 1 time in total.
flamerz14
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Fri Apr 20, 2007 7:34 am

ouh :oops: remove the edges u mean?
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thrasmussen
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Fri Apr 20, 2007 7:37 am

Yes. exactly. And stick that in backwards, into the 4" end of a 4x3" bell reducer.
flamerz14
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Fri Apr 20, 2007 7:38 am

bell reducer is the normal reducer rite? sorry but im a noob at pipes and stuff :oops:
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thrasmussen
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Fri Apr 20, 2007 11:19 am

It's just like a regular bushing but in a bell shape.
iknowmy3tables
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Fri Apr 20, 2007 11:31 am

a reducer is a reducer the technical name for them are brushings and couplings brushings have one male side and one female side, couplings have two female sides they dont always reduce
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thrasmussen
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Fri Apr 20, 2007 1:36 pm

Yes the "Bell Reducer" is like a coupling but with one end smaller than the other.
juscuz
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Sat Apr 21, 2007 10:17 am

Specialist wrote:ya he could just go to google and get an image. and juscuz welcome to spudfiles. i like jack's second idea a lot.
I assumed it was a photo shop but being a small photo it was hard to tell..


Thanks for the welcome, I am not that new I just finally registered.

I agree the altered bushing with the bell reducer would look the best.

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