Announcements
New Discussions
NACRA 500 Spi Halyard Fouls on Jib Furler
by '81 Hobie 16 Lac Leman. 11/11/22 12:11 PM
Spinnaker on Nacra 5.2; halyard fouls when (un)furling jib
by '81 Hobie 16 Lac Leman. 11/11/22 11:50 AM
Previous Thread
Next Thread
Print Thread
Rate Thread
Hop To
Riveting into a carbon tube? #271280
04/09/14 08:38 PM
04/09/14 08:38 PM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline OP
Carpal Tunnel
Karl_Brogger  Offline OP
Carpal Tunnel

Joined: Feb 2005
Posts: 4,118
Northfield Mn
Anything special I need to know? I broke my spin pole at the end of last year and I think I'm going to replace the aluminum tube with a carbon one. There's only a couple of fittings.

I'd assume a washer for a backer?


I'm boatless.
-- Have You Seen This? --
Re: Riveting into a carbon tube? [Re: Karl_Brogger] #271281
04/09/14 09:07 PM
04/09/14 09:07 PM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
Originally Posted by Karl_Brogger
Anything special I need to know? I broke my spin pole at the end of last year and I think I'm going to replace the aluminum tube with a carbon one. There's only a couple of fittings.

I'd assume a washer for a backer?


monel rivets, plenty of sealant, and a backer won't hurt.


Jake Kohl
Re: Riveting into a carbon tube? [Re: Karl_Brogger] #271282
04/09/14 09:18 PM
04/09/14 09:18 PM
Joined: Sep 2006
Posts: 586
Hobart, Tasmania, Oz.
Dazz Offline
addict
Dazz  Offline
addict

Joined: Sep 2006
Posts: 586
Hobart, Tasmania, Oz.
http://www.catsailor.com/forums/ubbthreads.php?ubb=showflat&Number=93799

there are special rivets for carbon fitting. AHPC/GD should be able to supply them


C2 AUS 222 by Goodall design
"Darph Bobo"
Re: Riveting into a carbon tube? [Re: Dazz] #271283
04/09/14 11:48 PM
04/09/14 11:48 PM
Joined: Jun 2010
Posts: 12
C
conrad dxb Offline
stranger
conrad dxb  Offline
stranger
C

Joined: Jun 2010
Posts: 12
We have not riveted our blocks to our carbon tubes we have lashed them on as this spreads the load all around the tube, as apposed to point load rivets, jib and spinnaker no problem , no holes.

Re: Riveting into a carbon tube? [Re: Karl_Brogger] #271299
04/10/14 02:40 PM
04/10/14 02:40 PM
Joined: Nov 2005
Posts: 1,203
uk
TEAMVMG Offline
veteran
TEAMVMG  Offline
veteran

Joined: Nov 2005
Posts: 1,203
uk
Don't rivet - glue, strop or tie


Paul

teamvmg.weebly.com
Re: Riveting into a carbon tube? [Re: Karl_Brogger] #271308
04/10/14 05:26 PM
04/10/14 05:26 PM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline OP
Carpal Tunnel
Karl_Brogger  Offline OP
Carpal Tunnel

Joined: Feb 2005
Posts: 4,118
Northfield Mn
That was kinda the gist of the thread that Dazz posted as well.


How about drilling a hole for the tack line to come out of the pole? Probably needs a grommet of some sort.


I'm boatless.
Re: Riveting into a carbon tube? [Re: Karl_Brogger] #271309
04/10/14 06:45 PM
04/10/14 06:45 PM
Joined: Apr 2004
Posts: 713
WA, ID, MT
davefarmer Offline
old hand
davefarmer  Offline
old hand

Joined: Apr 2004
Posts: 713
WA, ID, MT
I've seen machined alum inserts that slip into the end of the pole, with a smoothly chamfered hole in the end for the tack line. They have a lip that's the same dia as the pole so they can be epoxied in without fasteners, and the load is transferred to the pole by the lip, not the glue.

Or I've also had alum caps constructed to distribute the loads, and the tack line could come out the end of this design as well.

Attached Files
22 spin 003.jpg (22 downloads)
ARC pole tip
Last edited by davefarmer; 04/10/14 06:58 PM.
Re: Riveting into a carbon tube? [Re: davefarmer] #271310
04/10/14 07:23 PM
04/10/14 07:23 PM
Joined: Dec 2007
Posts: 1,430
california
F-18 5150 Offline
veteran
F-18 5150  Offline
veteran

Joined: Dec 2007
Posts: 1,430
california
SNU makes those.
Barefoot studios.


Richard Vilvens
Brand Ambassador
PSA Capricorn USA
R.Vilvens@yahoo.com
Fairfield, Ca
F-18 5150

http://www.capricornsailing.com/
Re: Riveting into a carbon tube? [Re: Karl_Brogger] #271314
04/11/14 04:09 AM
04/11/14 04:09 AM
Joined: Aug 2011
Posts: 774
Greenville SC
bacho Offline
old hand
bacho  Offline
old hand

Joined: Aug 2011
Posts: 774
Greenville SC
He needs a hole for the tack line to come out the side of the pole, not the end.

Re: Riveting into a carbon tube? [Re: Karl_Brogger] #271315
04/11/14 04:41 AM
04/11/14 04:41 AM
Joined: Jun 2001
Posts: 1,449
P
phill Offline
veteran
phill  Offline
veteran
P

Joined: Jun 2001
Posts: 1,449
Karl,
With reference to your original post:-
Things to note- If stainless is in contact with carbon it will rust or corrode. So any stainless needs to be insulated with glass or resin or something else depending on your application. So bed all stainless fittings that you add in epoxy.
ALSO Carbon is not an especially great material to drill let alone rivet. So keep drilling and especially riveting to an absolute min and bed it all in a thickened epoxy mix.
Being the anal kind of person that I am, if I was making a pole that I was going to drill I'd make sure I included at least some glass in that area of the laminate if I was going to rivet I'd add kevlar just in that area.
As your not making the pole from scratch I'd follow Team VMG's advice. Paul summed it up as well as it could.
Good luck.

Regards,
Phill


I know that the voices in my head aint real,
but they have some pretty good ideas.
There is no such thing as a quick fix and I've never had free lunch!


Moderated by  Damon Linkous 

Search

Who's Online Now
0 registered members (), 23 guests, and 142 spiders.
Key: Admin, Global Mod, Mod
Newest Members
toomanyhulls, madina9900, johngava, badcatsailor, wehnet
8119 Registered Users
Top Posters(30 Days)
Forum Statistics
Forums26
Topics22,399
Posts267,044
Members8,119
Most Online1,650
Sep 10th, 2019
--Advertisement--
Powered by UBB.threads™ PHP Forum Software 7.7.1