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Re: Synthetic Lifelines? [Re: JeffSmithNJphoto] #14377
01/07/13 07:28 PM
01/07/13 07:28 PM
Joined: Apr 2007
Posts: 97
Bainbridge Island, WA
JBro Offline
Senior Member
JBro  Offline
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Joined: Apr 2007
Posts: 97
Bainbridge Island, WA
Jeff - great link! Thanks.

Re: splicing - I agree. Doing brummel splices in single-braid dyneema is really easy.

Also - you'll want to check out the Johnson Marine Catalog (pg 14) here for the replacement fittings that work with synthetic lifelines. http://www.csjohnson.com/marinecatalog/s00014.htm

This replacement is a great winter project to do in the colder (or wetter) climates.

- Jeff


- Jeff
J/30 #426 - Watusi
Re: Synthetic Lifelines? [Re: JeffSmithNJphoto] #14381
01/08/13 07:17 AM
01/08/13 07:17 AM
Joined: Jul 2010
Posts: 126
Atlantic Highlands, NJ
JeffSmithNJphoto Offline OP
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JeffSmithNJphoto  Offline OP
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Joined: Jul 2010
Posts: 126
Atlantic Highlands, NJ
Thanks for the link. I will go with the 316 wire. The link you sent for Johnson recommends that the Dynema be replaced after 3 years, which makes it much less cost effective.
I'll use the push in locking grommets, which are a hard nylon.

Re: Synthetic Lifelines? [Re: Rhapsody #348] #15310
11/04/13 04:38 PM
11/04/13 04:38 PM
Joined: Apr 2004
Posts: 457
Highland Park, NJ
Steve Buzbee Offline
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Steve Buzbee  Offline
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Joined: Apr 2004
Posts: 457
Highland Park, NJ
Originally Posted by Rhapsody #348
Jeff - you are the 3rd person I've heard from that reached the same conclusion. Uncoated 316 stainless appears to be the most cost effective solution.

Comment - I am having stainless tubes welded in the stanchion holes the wire passes through to minimize chaffe and get rid of the plastic inserts. That should help increase the longevity of any life line.


What did it cost to weld tubes into the stanchion holes (per stanchion or total)? Who does that kind of work? A rigging shop?


Steve Buzbee
Blue Meanie J/30 #485
Re: Synthetic Lifelines? [Re: JeffSmithNJphoto] #15311
11/04/13 04:58 PM
11/04/13 04:58 PM
Joined: May 2007
Posts: 2,668
Portsmouth, RI
Rhapsody #348 Offline
Past J/30 Class President
Rhapsody #348  Offline
Past J/30 Class President
Joined: May 2007
Posts: 2,668
Portsmouth, RI
Steve - I had tubes welded in the stanchions for Rhapsody along with other machining work I had done so don't know the allocation of costs just for the tubes. There was $22 of material (stainless tubing) and I anticipate about 2 to 3 hours of labor spent on this for cutting the tubing, welding, grinding and polishing. I used a local machine shop that was recommended to me. You can check the labor rates in your area, but I would expect it to run $55 to $95 per hour for a skilled machinist.

Re: Synthetic Lifelines? [Re: JeffSmithNJphoto] #15325
11/07/13 09:36 AM
11/07/13 09:36 AM
Joined: Jul 2010
Posts: 126
Atlantic Highlands, NJ
JeffSmithNJphoto Offline OP
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JeffSmithNJphoto  Offline OP
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Joined: Jul 2010
Posts: 126
Atlantic Highlands, NJ
With wire lifelines, I used plastic grommets from McMaster-Carr, which I shimmed using electrical tape. When a couple of pairs came loose from the stanchions, small cable ties held the pair in place. Total cost around 15 bucks with shipping and cable ties...

http://www.mcmaster.com/#cable-management-grommets/=p9wxwp


Re: Synthetic Lifelines? [Re: JeffSmithNJphoto] #15326
11/07/13 09:51 AM
11/07/13 09:51 AM
Joined: Jul 2010
Posts: 126
Atlantic Highlands, NJ
JeffSmithNJphoto Offline OP
Senior Member
JeffSmithNJphoto  Offline OP
Senior Member
Joined: Jul 2010
Posts: 126
Atlantic Highlands, NJ
When I clicked the link, it took me to the category, not the item, so here are the item order numbers you can search for.

5269T23 3/16" wire hole
5269T24 1/4" wire hole


Re: Synthetic Lifelines? [Re: JeffSmithNJphoto] #15327
11/07/13 01:22 PM
11/07/13 01:22 PM
Joined: Apr 2000
Posts: 678
Maryland, USA
Bob Rutsch Offline
Governor at Large
Bob Rutsch  Offline
Governor at Large
Joined: Apr 2000
Posts: 678
Maryland, USA
So 'Push-In Locking Grommets', are they one per hole or one per side of each hole in the stanchion?

Re: Synthetic Lifelines? [Re: JeffSmithNJphoto] #15328
11/07/13 03:17 PM
11/07/13 03:17 PM
Joined: Jul 2010
Posts: 126
Atlantic Highlands, NJ
JeffSmithNJphoto Offline OP
Senior Member
JeffSmithNJphoto  Offline OP
Senior Member
Joined: Jul 2010
Posts: 126
Atlantic Highlands, NJ
0ne on each side of the stanchion, but you get 100 for $5.00 so there are plenty.

Re: Synthetic Lifelines? [Re: JeffSmithNJphoto] #15352
12/10/13 09:38 AM
12/10/13 09:38 AM
Joined: Sep 2000
Posts: 393
Rockwood, MI, USA
Russ Atkinson Offline
Senior Member
Russ Atkinson  Offline
Senior Member
Joined: Sep 2000
Posts: 393
Rockwood, MI, USA
I bought 3 stainless steel bolts - sorry I don't remember the size (metric). they were just a bit larger than the hole in the stanchion so that I could not push them thru. I thru drilled the bolts slightly larger than the diameter of the lifeline, stuck a tap in the stanchion. The tap cut just enough of a thread to allow the bolts to go in. I screwed the bolts into the stanchions and put a nut on the backside

Re: Synthetic Lifelines? [Re: JeffSmithNJphoto] #15360
12/16/13 01:36 PM
12/16/13 01:36 PM
Joined: Sep 2000
Posts: 393
Rockwood, MI, USA
Russ Atkinson Offline
Senior Member
Russ Atkinson  Offline
Senior Member
Joined: Sep 2000
Posts: 393
Rockwood, MI, USA
Working on another project and ran across the tap used to thread the stanchions. Bolts were 14mm. Lots cheaper than welding tubes through the stanchions.

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