Cutting a hole in the deck - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 07-03-2008
dawnhoff's Avatar
Junior Member
 
Join Date: Mar 2007
Location: North of Boston, MA
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
dawnhoff is on a distinguished road
Cutting a hole in the deck

I need to cut a 3 1/4" hole in the deck of my Venture 21 for for a solar vent. Any sugestions on the best way to cut the hole?
__________________
Dark Mistress
1969 Venture 21
____________________________________

" It seemed like a good idea at the time..."
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 07-03-2008
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
You could use something like this. Or you could scribe it and use a jig saw.
__________________
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.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 07-03-2008
ASA and PSIA Instructor
 
Join Date: Apr 2000
Posts: 3,471
Thanks: 6
Thanked 18 Times in 18 Posts
Rep Power: 15
sailingfool will become famous soon enough
Quote:
Originally Posted by dawnhoff View Post
I need to cut a 3 1/4" hole in the deck of my Venture 21 for for a solar vent. Any sugestions on the best way to cut the hole?
Assuming you will cut through core material, be sure to seal the edges of the hole to protect the core material, or you'll have a soft deck in no time.

"Seal" - chip out a 1/2 inch of core all around the hole, then fill the area opened with a mix of West epoxy/collidial silica.
__________________
Certified...in several regards...
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 07-03-2008
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Also, pot the holes for the bolts. The holes should be drilled oversized and filled with thickened epoxy as well, and then counter-sink the top edges of all the holes, those for the fasteners and for the vent fan itself, so that the sealant has a place to form an o-ring when you tighten the bolts down.
__________________
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.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 07-03-2008
Senior Member
 
Join Date: Jan 2001
Posts: 500
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 14
Quickstep192 is on a distinguished road
I would use a hole saw like the one shown here . Run it backward at first to get started; that will prevent it from digging in. New hole saws are very sharp and the sharp teeth can dig in, grabbing the material and either chip it badly, twist the heck out of your wrist or both. If you can reach the underside, go halfway through from the top and finish it off from the underside. That will help prevent it from chipping out. If your deck is cored, follow the sage advice above. In fact, if it were me and the deck was cored, I'd think real hard about how much I wanted that vent.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 07-03-2008
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
i don't think they make a standard hole saw in that diameter.

Quote:
Originally Posted by Quickstep192 View Post
I would use a hole saw like the one shown here . Run it backward at first to get started; that will prevent it from digging in. New hole saws are very sharp and the sharp teeth can dig in, grabbing the material and either chip it badly, twist the heck out of your wrist or both. If you can reach the underside, go halfway through from the top and finish it off from the underside. That will help prevent it from chipping out. If your deck is cored, follow the sage advice above. In fact, if it were me and the deck was cored, I'd think real hard about how much I wanted that vent.
__________________
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.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 07-03-2008
Owner, Green Bay Packers
 
Join Date: Sep 2006
Location: SW Michigan
Posts: 10,318
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
sailaway21 is just really nice sailaway21 is just really nice sailaway21 is just really nice sailaway21 is just really nice
Drill a small hole through the deck and then use a jig saw with the finest tooth blade you can find. It's not a bad idea to find the center of your hole and then cover the deck with masking tape. Then scribe your hole's outline on the tape and cut away. The tape will minimize chipping around the edges. Also make sure that your jig saw blade is squarely aligned in it. Test it on a piece of wood of approximately the same thickness of your deck. Most jig saws are adjustable and most are not square even when the guage says zero degrees. You don't want to cut a tapered hole!

A hole saw, if you can find one (try a commercial supply house), will do the job fine but I strongly recommend the two cut process mentioned above. The hole saw will be kind of expensive for just a one time use. And the above poster was not lying about the amount of torque it'll put on your wrist!
__________________
“Scientists are people who build the Brooklyn Bridge and then buy it.”
Wm. F. Buckley, Jr.
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 07-03-2008
Senior Member
 
Join Date: Oct 2006
Location: Virginia
Posts: 722
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
badsanta is on a distinguished road
I cut the hole in my plexeglass hatch, I did not want to do the deck. At the worst I figured I could replace the hatch easer if I messed up. Works great.
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 07-04-2008
Senior Member
 
Join Date: Sep 2007
Posts: 451
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
RXBOT is on a distinguished road
Solar vent

Agree with santa but don't think 21 foot venture has a hatch besides companionway. But if main reason 4 vent is 4 when u r away from boat could u put in companionway hatch?
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 07-04-2008
Senior Member
 
Join Date: Sep 2006
Posts: 2,250
Thanks: 0
Thanked 6 Times in 6 Posts
Rep Power: 9
Rockter will become famous soon enough
I wonder is it worth it, for a solar vent?
Reply With Quote Quick reply to this message Share with Facebook
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Techniques for Removing Teak Decks Sue & Larry Buying a Boat Articles 0 11-24-2003 07:00 PM
Mounting Deck Hardware Tom Wood Gear and Maintenance Articles 0 06-25-2002 08:00 PM


All times are GMT -4. The time now is 05:01 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.