No Question too Dumb? - SailNet Community
 
LinkBack Thread Tools
post #1 of 8 Old 01-25-2011 Thread Starter
Senior Member
 
Join Date: Oct 2004
Posts: 102
Thanks: 9
Thanked 0 Times in 0 Posts
Rep Power: 15
 
No Question too Dumb?

I know, I know.... duh... so simple.

But I thought better to ask how others would do this than do it wrong.

I am planning a "clean up" of my electrical panel. One of the things I want to do is to install a neg. bus bar. It's one of those simple blue seas bus bars. Two holes (one on each end) to screw it down. But, the surface of the back area of my panel is the fiberglass that is the otherside of my fore cockpit wall. the place I lean against when I'm lazin' in the cockpit. Two screws would not be a nice thing sticking out there ....and the Fiberglass is not that great to screw into anyway. So two bolts through the Fiberglass?.... still not a good idea.... just another place to possibly leak .... and my electrical box is not a good place for moisture.

So my thoughts... Glue it on. This might work but with what? and since the back of the bus bar is not a flat surface but a lot of hollow places with a reinforcing bit hear and there, I don't know how well it would stick. Basically, I don't like this idea.

Second thought... Epoxy on an epoxy soaked strip of 3/4 inch marine plywood to screw the bus bar to. Possible. But now it's going to stick up higher than I really want. (maybe the plywood strip should have a couple of layers of glass to tab it down)

Third thought... epoxy (thickened) to the FRP a couple of little #10 stainless bolts (head buried in the epoxy) and fasten the bus bar down with a couple of nuts. I bolted on a shelf in my lazarette this way six years ago and it's still solid.

Or better ideas?

Thanks ...... looking forward to your thoughts. What great knowledge base this place is!!!!
Tree is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 01-25-2011
Senior Member
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 19,488
Thanks: 160
Thanked 587 Times in 558 Posts
Rep Power: 16
     
What boat? if the fiberglass surface in question is a cored area it may be possible to fasten to the inner skin without penetration of the outer - but you're right in that it won't be the strongest of attachments.

Your last plan looks pretty good - esp if you've history to prove it's effectiveness. Perhaps attach the mounting bolts to a thin strip of FRP (easy to make yourself) and epoxy that assembly to the f/g surface - more bonding area without too much elevation gain.....

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
post #3 of 8 Old 01-26-2011
Senior Member
 
Join Date: Feb 2010
Posts: 134
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
Countersink the holes and use flathead bolts so they are flush with the surface or glue it on with 5200. That stuff will hold it solidly forever.

Eric
fairbank56 is offline  
 
post #4 of 8 Old 01-26-2011
Senior Member
 
remetau's Avatar
 
Join Date: Jan 2009
Location: Bradenton, FL
Posts: 780
Thanks: 0
Thanked 8 Times in 8 Posts
Rep Power: 11
 
I like the ideas of the wood or epoxied bolts. I prefer solid wood instead of plywood and you could use 1/2 inch instead of 3/4. The epoxied bolts seems simpler and may look cleaner.

Don & Diana
sv Re Metau an HC33t

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
remetau is offline  
post #5 of 8 Old 01-26-2011
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,289
Thanks: 0
Thanked 19 Times in 15 Posts
Rep Power: 18
         
Or you could use the WeldMount fasteners. They make 10-24 and 1/4-20 studs that you can mount to the fiberglass...cut them to the right length and you're off to the races...




Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
post #6 of 8 Old 01-28-2011 Thread Starter
Senior Member
 
Join Date: Oct 2004
Posts: 102
Thanks: 9
Thanked 0 Times in 0 Posts
Rep Power: 15
 
great suggestions

Thankyou everyone for the great suggestions.

SD..... I'm very interested in the WeldMount Fasteners. Great idea.

I wrote to them and found that there are no venders in Alaska. And it's a ground only shipping item so... suddenly the shipping costs are absurd. ....and when I talked to Defender, they wouldn't even sell it to me because of the shipping restrictions.

I may be able to come up with a solution though......

Thanks again everyone!
Tree is offline  
post #7 of 8 Old 01-28-2011
Senior Slacker
 
SlowButSteady's Avatar
 
Join Date: Feb 2010
Location: SoCal
Posts: 4,223
Thanks: 0
Thanked 18 Times in 16 Posts
Rep Power: 10
 
Can you get the fasteners w/o the adhesive? You could probably just use an epoxy locally available to you and thus avoid the "ground transport only" problem.

Edit:
Jamestown has them as a separate item. No haz-mat restrictions.
Weld Mount Stainless Steel Studs

Never forget them. Do something to prevent it from happening again.
Charlotte Bacon, Daniel Barden, Rachel Davino, Olivia Josephine Gay, Ana M. Marquez-Greene, Dylan Hockley, Dawn Hochsprung, Madeleine F. Hsu, Catherine V. Hubbard, Chase Kowalski, Jesse Lewis, James Mattioli , Grace McDonnell, Anne Marie Murphy, Emilie Parker, Jack Pinto, Noah Pozner, Caroline Previdi, Jessica Rekos, Avielle Richman, Lauren Rousseau, Mary Sherlach, Victoria Soto, Benjamin Wheeler, Allison N. Wyatt

Last edited by SlowButSteady; 01-29-2011 at 12:05 AM.
SlowButSteady is offline  
post #8 of 8 Old 01-29-2011
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,289
Thanks: 0
Thanked 19 Times in 15 Posts
Rep Power: 18
         
Slowbutsteady's suggestion is a very good one. The problem is the adhesive, which is a two-part methacrylate adhesive and qualifies as a hazmat. If you just were to order the fittings and use locally gotten adhesive, you'd be good to go.




Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Really dumb question.... Mizu General Discussion (sailing related) 52 01-24-2011 05:26 AM
Help--Really dumb question Barquito Gear & Maintenance 4 08-08-2010 02:47 PM
This might seems like a dumb question but I'm new so... MARRSY Gear & Maintenance 8 09-24-2007 10:03 AM
Dumb question on tides RetCO Seamanship & Navigation 5 08-11-2007 08:49 PM
Dumb question, but please help.... FrankLanger Gear & Maintenance 7 07-06-2007 12:12 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome