Go Back   RIBnet Forums > RIB talk > RIBs & ribbing

Reply
 
Thread Tools Search this Thread
 
Old 14 June 2006, 23:22   #1
Member
 
Country: UK - England
Town: Solent
Length: 6m +
Join Date: Jan 2004
Posts: 4,219
Perspex question

I want to make a windscreen for the Osprey. What thickness Perspex should I use - is 3mm going to be a: thick enough for the job b: easy to bend to shape with a heat gun.

Also, I have seen windscreens with flexable black U shaped stuff that goes round to cover/protect the edge. What is this called?
Tim M is offline   Reply With Quote
Old 15 June 2006, 01:20   #2
Member
 
Country: Other
Town: San Carlos, Mexico
Boat name: INDE
Make: LOMAC 730
Length: 7m +
Engine: 200 Merc.
MMSI: Please press 1
Join Date: May 2006
Posts: 1,667
windshield

This is not a simple project. Unless you know exactly what you are doing you will waste a lot of money. First; Perspex is not the ideal material as if it breaks it produces knife sharp edges, like glass. Polycarbonate is a better material but more difficult to form. My suggestion would be to use flat polycarb. or have it done professionaly. Polycarb. is also much stronger than Perspex( acrylic). Hope this helps.
__________________
Running around like a head with it's chicken cut off.
Limey Linda is offline   Reply With Quote
Old 15 June 2006, 06:07   #3
RIBnet supporter
 
Country: UK - England
Town: In the middle
Boat name: Déjà Vu
Length: 7m +
Engine: 15/250
Join Date: May 2006
Posts: 1,968
Hi

I used 3 mm polycarbonate; you can get different shades/colours etc

If you want to shape it the best way is to put it in an oven at 2oo C for 2 minutes and then place it over a former and hold it in place until cool (use oven gloves and best done when your wife/mother is out) if it’s no quite as you want it you can warm it again.

Try one of the off cuts first around a wine bottle as all ovens are different

And leave the film on the polycarbonate it may lift a little around the edges but will be fine.
bedajim is offline   Reply With Quote
Old 15 June 2006, 06:48   #4
Trade member
 
Kernow Buoy's Avatar
 
Country: UK - England
Town: St. Austell,Cornwall
Boat name: Essa
Make: Ribtec 5.85
Length: 5m +
Engine: 150 optimax
Join Date: Oct 2004
Posts: 1,319
Tim
look for 'lexan' on ebay, couple of sellers there. 3mm should be fine I bought some 5mm and its too thick to bend easily, 3mm bends really easily even up to 90 degrees with a hot air gun, see if you can have a practice run first though, my demonstrator model is still in my shed!
Kernow Buoy is offline   Reply With Quote
Old 15 June 2006, 09:26   #5
Member
 
Country: UK - England
Town: Solent
Length: 6m +
Join Date: Jan 2004
Posts: 4,219
Ebay is was my intended source; theres a guy selling A3 sheets for £8 and hes local. I'll give 3mm a go
Tim M is offline   Reply With Quote
Old 15 June 2006, 09:34   #6
Member
 
Country: UK - England
Town: Solent
Length: 6m +
Join Date: Jan 2004
Posts: 4,219
Just bought a sheet - £12.02 with postage. There should be enough for a bit of practice first.

Does anyone know what the black plastic stuff I mentioned before is called?
Tim M is offline   Reply With Quote
Old 15 June 2006, 10:04   #7
Administrator
 
Country: UK - England
Town: Brighton
Make: Bombard Aerotec 380
Length: 3m +
Engine: Yamaha 15hp 2-stroke
Join Date: May 2000
Posts: 5,227
Imaginatively enough, it's sometimes known as screen trim!

Motorbike shops sell it, but they might not do the length you need.

John
John Kennett is offline   Reply With Quote
Old 15 June 2006, 11:03   #8
Member
 
Country: UK - England
Town: Solent
Length: 6m +
Join Date: Jan 2004
Posts: 4,219
Quote:
Originally Posted by John Kennett
Imaginatively enough, it's sometimes known as screen trim!

Motorbike shops sell it, but they might not do the length you need.

John
Exellent
Tim M is offline   Reply With Quote
Old 15 June 2006, 11:32   #9
Member
 
Country: UK - England
Town: Portsmouth
Length: 4m +
Join Date: Jan 2005
Posts: 108
Tim if you muck it up then give me a ring and I'll get my plastics man to do it for you - he would have done the bending and drilled holes for about the same price!
daveh is offline   Reply With Quote
Old 15 June 2006, 11:34   #10
Member
 
Country: UK - England
Town: Solent
Length: 6m +
Join Date: Jan 2004
Posts: 4,219
Thanks Dave. Hopefully the bending shouldn't be toooo hard. I can just about drill a hole my self
Tim M is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

RV & Travel Trailer Communities

Our RV & Travel Trailer sites encompasses virtually all types of Recreational Vehicles, from brand-specific to general RV communities.

» More about our RV Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002-2012 Social Knowledge, LLC All Rights Reserved.

All times are GMT. The time now is 13:21.


RIB News Delivered to your Email!

Stay up-to-date with RIB news in your inbox!

unsusbcribe at anytime with one click

Close [X]