Custom cut round plastic window for forward hatch - Page 2 - 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? 
  #11  
Old 07-19-2012
smurphny's Avatar
Over Hill Sailing Club
 
Join Date: Feb 2009
Location: Adirondacks NY
Posts: 2,673
Thanks: 48
Thanked 56 Times in 54 Posts
Rep Power: 6
smurphny is on a distinguished road
Re: Custom cut round plastic window for forward hatch

I was thinking of a mechanical ring or stop of some sort. Is there nothing but adhesive holding in the glazing on this type hatch? Most hatch inserts are held in both sides with a retaining ring. The matching rabbets should be on the inside with an inside plate/stop over the plexiglass to hold it in. The rabbet on the glazing should be what brings it up to exterior surface height. Maybe that's what the OP is describing.

I just finished replacing a piece of broken glass in a small port. Used a leftover piece of 3/8" acrylic. It was easy to do the rabbeting with a table saw, setting the blade depth and fence to right depths and then running the glass upright along the fence, rotating it around.
__________________
Alberg 35: With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship.
Reply With Quote Share with Facebook
  #12  
Old 07-19-2012
hellosailor's Avatar
Plausible Deniability
 
Join Date: Apr 2006
Posts: 10,421
Thanks: 1
Thanked 74 Times in 72 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Re: Custom cut round plastic window for forward hatch

Romario, it sounds like a simple piece of 1/4" plexiglass (acrylic) that has had a 1/8" bevel cut into the edge with a router. For a plexi shop this is a simply job. But a lot of plastics shops are used to indoor work done cheap, and the raw material is bought in 4x8 foot sheets, so if you want something they don't have, they cleverly try to charge you for the whole sheet and keep the rest. (Ouch.)

For hatches (and ignoring the question of using cast acrylic instead of "structured" aka sheet material) you will get better life by looking for an acrylic that is meant for use as outdoor glazing, that is UV-resistant and scratch-resistant. If you find a shop that doesn't get all upset when you ask about this, the odds are they have the right material and are a better place to work with.

I'd guess the price of the job would be $50-100 depending on local prices.

But the plastic you dropped overboard? Technically, that's a MARPOL violation and a serious fine for putting plastic in the water. If it was at the dock...Heck, you'll save at least $50 by getting a mask and diving down to look for it. :-)
Reply With Quote Share with Facebook
  #13  
Old 07-19-2012
Barquito's Avatar
Barquito
 
Join Date: Dec 2007
Location: Madison, WI
Posts: 1,907
Thanks: 0
Thanked 14 Times in 14 Posts
Rep Power: 7
Barquito is on a distinguished road
Re: Custom cut round plastic window for forward hatch

Quote:
If it was at the dock...Heck, you'll save at least $50 by getting a mask and diving down to look for it. :-)
Better yet, throw the GF overboard with a mask to find the thing.
__________________
Bristol 27
Cirque
Reply With Quote Share with Facebook
  #14  
Old 07-23-2012
Member
 
Join Date: May 2012
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 3
Romario is on a distinguished road
Re: Custom cut round plastic window for forward hatch

Quote:
Originally Posted by hellosailor View Post
For hatches (and ignoring the question of using cast acrylic instead of "structured" aka sheet material) you will get better life by looking for an acrylic that is meant for use as outdoor glazing, that is UV-resistant and scratch-resistant. If you find a shop that doesn't get all upset when you ask about this, the odds are they have the right material and are a better place to work with.

I'd guess the price of the job would be $50-100 depending on local prices.
The best quote I got so far is $90 with a week lead time. There were actually only 3 replies from the dozen or so places I sent a request to, from 200 to 90 dollars quotes.

Quote:
But the plastic you dropped overboard? Technically, that's a MARPOL violation and a serious fine for putting plastic in the water. If it was at the dock...Heck, you'll save at least $50 by getting a mask and diving down to look for it. :-)
I wish I could get it back, I saw it sinking while we were under sail, I even contemplated jumping in for a second, but it was too late, by the time I jumped we would be too far away and the lens was sinking too fast.
Reply With Quote Share with Facebook
  #15  
Old 07-23-2012
SloopJonB's Avatar
Senior Moment Member
 
Join Date: Jun 2011
Location: West Vancouver B.C.
Posts: 10,615
Thanks: 56
Thanked 48 Times in 45 Posts
Rep Power: 4
SloopJonB will become famous soon enough
Re: Custom cut round plastic window for forward hatch

Quote:
Originally Posted by smurphny View Post
I was thinking of a mechanical ring or stop of some sort. Is there nothing but adhesive holding in the glazing on this type hatch? Most hatch inserts are held in both sides with a retaining ring. The matching rabbets should be on the inside with an inside plate/stop over the plexiglass to hold it in. The rabbet on the glazing should be what brings it up to exterior surface height. Maybe that's what the OP is describing.

I just finished replacing a piece of broken glass in a small port. Used a leftover piece of 3/8" acrylic. It was easy to do the rabbeting with a table saw, setting the blade depth and fence to right depths and then running the glass upright along the fence, rotating it around.
I think you're describing the system used on opening portlights, particularly those with glass rather than plastic lenses. Modern deck hatches have the lens simply bonded in place with a combination adhesive/sealant like Dow 795.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
Reply With Quote Share with Facebook
Reply


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
Plastic Hatch emiller775 Gear & Maintenance 8 02-03-2011 02:10 PM
Scratch remover for plastic window CISCOJOE Gear & Maintenance 1 01-16-2009 04:21 PM
B32 forward hatch needed ows1id Bristol 5 02-27-2008 08:18 PM
forward hatch leak joec43 Morgan 5 12-22-2006 05:31 PM
Forward Hatch Cover Sup Gear & Maintenance 2 10-04-2000 04:34 PM


All times are GMT -4. The time now is 08:04 PM.

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.