Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 34 users online :: 6 registered, 0 hidden and 28 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Sch80 problems

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
Sponsored 
  • Author
    Message

Unread postAuthor: Hubb » Tue Jan 20, 2009 4:19 pm

Returning it would be the best option. If you decide to heat it, remember, it is PVC. PVC fumes are not good.
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Unread postAuthor: Combustion Monkey » Tue Jan 20, 2009 4:27 pm

Ok just got the two pipes together. The sdr 21 did straighten the bend to some extent, but it's still very noticeable. Unfortunately the pipe is non returnable since it was cut and they will only sell lengths of 20ft. If nothing else it was a lesson in were not to buy pipe from. I think i will put some free weights on it to see if i can get it to relax. Thanks to everyone who tried to help me polish a turd :lol:
  • 0

User avatar
Combustion Monkey
Master Sergeant
Master Sergeant
 
Posts: 153
Joined: Sun Jan 11, 2009 3:01 pm
Reputation: 0

Unread postAuthor: Hubb » Tue Jan 20, 2009 4:32 pm

How about cutting it in smaller sections, say 1 foot each. Then sleeve your SDR pipe.
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Unread postAuthor: Combustion Monkey » Tue Jan 20, 2009 4:36 pm

I was thinking of doing something like that but was wondering about the strength of it. I am afraid it would break the sdr at the seams when it tried to flex.
  • 0

User avatar
Combustion Monkey
Master Sergeant
Master Sergeant
 
Posts: 153
Joined: Sun Jan 11, 2009 3:01 pm
Reputation: 0

Unread postAuthor: Hubb » Tue Jan 20, 2009 4:47 pm

It should work fine. In fact, that's how BC Arms sells them here. It may not hurt to stagger the pieces like he does.
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Unread postAuthor: Combustion Monkey » Tue Jan 20, 2009 4:51 pm

Heck, at this point its worth a shot. I'll have to try it in an hour or so and post back on the results. The barrel is going on my coax gun, the 4ft of barrel in the chamber can be as bent as it wants, its the 6ft of external barrel that I am concerned about.
  • 0

User avatar
Combustion Monkey
Master Sergeant
Master Sergeant
 
Posts: 153
Joined: Sun Jan 11, 2009 3:01 pm
Reputation: 0

Unread postAuthor: Combustion Monkey » Tue Jan 20, 2009 5:45 pm

I tried the segmented pipe fix with two segments ,and there is still enough of a bend in even a one foot section that it is very noticeable. I'll have to find some sch 80 from another source before i can finish this project. On a positive note, i now have a lifetimes supply of 2in adapter bits :lol: !
  • 0

User avatar
Combustion Monkey
Master Sergeant
Master Sergeant
 
Posts: 153
Joined: Sun Jan 11, 2009 3:01 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: starman » Wed Jan 21, 2009 3:23 am

First off Combustion Monkey....you've been doing a lot of double posting...against the rules. If you're the last poster, just edit your last post.

About that sched 80, it's a lost cause dude. I tried straightening some SDR21 1.5" with heat without much success. You aren't going to get very far with sched 80. I know you've sawed it already but the pipe is really unusable even for some standard electrical or plumbing applications.

Home Depot carrys 2" sched 80 in 10' sections. You can pick the straightest one yourself.
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: Combustion Monkey » Wed Jan 21, 2009 4:26 pm

Very sorry for the double posting, it wont happen again. I checked our local (very small) Home Depot, they don't have sch 80. But wile I was there i came up with an idea that should work very well to solve the problem. If in fact it does work, I'll post it back up here as how to make a straight golf ball barrel from bent sch 80. Should that be a new topic or just an edit to this thread?
  • 0

User avatar
Combustion Monkey
Master Sergeant
Master Sergeant
 
Posts: 153
Joined: Sun Jan 11, 2009 3:01 pm
Reputation: 0

Unread postAuthor: MrCrowley » Wed Jan 21, 2009 4:32 pm

Should that be a new topic or just an edit to this thread?

You can do both if you want. If it actually works, there's no reason it can't be in a new topic. :)
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: psycix » Wed Jan 21, 2009 5:31 pm

I wouldnt trust this pipe.
Note that besides being bent, the pipe may have other surprises.
It wouldnt surprise me if that pipe failed under its rated pressure.

I always check the ins and outs of every pipe I am about to buy. Straightness is #1 priority when it comes to selecting a pipe for a barrel.
Many pipes and other items of a hardware store are bent. You can check the straightness of it by putting it down on the floor and rolling it.
  • 0

Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: MrCrowley » Wed Jan 21, 2009 5:33 pm

As long as he is using it for a barrel or a sleeve for a barrel it should be fine though. Unless if he uses it as a barrel with the current bend in it.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: Combustion Monkey » Wed Jan 21, 2009 9:56 pm

  • 0

User avatar
Combustion Monkey
Master Sergeant
Master Sergeant
 
Posts: 153
Joined: Sun Jan 11, 2009 3:01 pm
Reputation: 0

Previous

Return to Construction Materials/Ammo Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Majestic-12 [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'