cowl vents

[LARRY WHETTONParticipant @larrywhetton68737]

john king

[LARRY WHETTONParticipant @larrywhetton68737]

hi  any idea how to scratch build cowl vents to suit a beginer cheers larry.

[Rick FryerParticipant @rickfryer11539]

1. Obtain a ball equal in diameter to the cowl part of the ventilator

 

2. Cut a slightly bigger hole in a sheet of wood

 

3. Secure a sheet of  styrene to the wood.

 

4. Heat styrene

 

5. Push ball through hole to form cowl

 

6. Cut out cowl and attach to styrene tube to form vent.

 

7. Trim, fill and smooth.

 

Rick

 

 

 

 

[LARRY WHETTONParticipant @larrywhetton68737]

hi rick thanks for info i will go and  bye a bag of marbles for source of balls larry.

[Ian GardnerParticipant @iangardner62867]

I have used a method similar to this using a ball bearing, heated, and just placed on a suspended sheet of styrene. I had a jug of cold water handy to douse the lot when the ball sank to about half its diameter. You then have a ball embedded in the styrene, but a smart whack will remove it. This leaves a nice rim round the cowl when trimmed up. Bond this to a styrene tube and fill the join between cowl and tube with styrene slurry -et voila! It’s all a bit crude but it does work, after some experimentation with thickness of sheet and heating times.

Ian

[LARRY WHETTONParticipant @larrywhetton68737]

thank you Ian for tip on cowl build need source of a ball bearing now then i will have go cheers Larry.

[Bob Abell 2Participant @bobabell2]

Hello Larry

 

If you require large cowls……..Then those egg shaped ball things that kids get out of slot machines, with little toys inside, could be adapted…..with a little ingenuity!

 

Bob

[LARRY WHETTONParticipant @larrywhetton68737]

thanks bob stuck deck on to day wheel hous e 70% COMPLETE gardening keeps geting in the way cheers larry

[HS93Participant @hs9317166]

http://modelfireboats.com/blogs/display.php?blogid=15&page=4

[HS93Participant @hs9317166]

http://modelfireboats.com/blogs/display.php?blogid=15&page=4

[HS93Participant @hs9317166]

http://modelfireboats.com/blogs/display.php?blogid=15&page=4

[HS93Participant @hs9317166]

Have a look at my mini fire boat blog on the fire boat site, it shows how I made some brass ones very simple to do, I would post it on hear but it takes so long to put pictures on.

Peter

http://modelfireboats.com/blogs/display.php?blogid=15&page=4

[Author]

Posts