Model Boat Mayhem

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Cowl Vents.  (Read 1711 times)

sabre

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 106
Cowl Vents.
« on: July 10, 2020, 02:58:12 pm »
Just wondering how you guys go about making cowl vents.   The biggest I need to make is around two and a half inches or 63.5 mm.
Logged

nemesis

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,086
  • Location: North Shields. Northumberland
Re: Cowl Vents.
« Reply #1 on: July 10, 2020, 03:34:27 pm »
Is that the height or the diameter of the cowl opening and what would the tube diameter be? nemesis
Logged

CGAux26

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 655
  • Location: Deep in the heart of TEXAS (Tomball)
Re: Cowl Vents.
« Reply #2 on: July 10, 2020, 03:56:38 pm »
I made a pair for my Springer from PVC pipe elbows.   O0


And again I object to Mayhem's tine file size limits.   <*< :police:
Logged

Tug Fanatic

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 2,490
  • Location: England
Re: Cowl Vents.
« Reply #3 on: July 10, 2020, 04:15:23 pm »
Quote from: CGAux26 on July 10, 2020, 03:56:38 pm
I made a pair for my Springer from PVC pipe elbows.   O0


And again I object to Mayhem's tine file size limits.   <*< :police:
Your picture looks just fine, fills my screen & the limit keeps the cost down. No problem to me.
Logged

furball

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 251
  • Location: Herne Bay, Kent
Re: Cowl Vents.
« Reply #4 on: July 10, 2020, 07:05:06 pm »

Ones I made for the lifeboat. The bell was plunge moulded styrene in two halves, mated to a piece of plastruct pipe for the tube. 1/12 scale, about 2” high.


Lance



Logged

BeeJay UK

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 179
  • Norfolk 'n Good
  • Location: Diss, Norfolk
Re: Cowl Vents.
« Reply #5 on: July 10, 2020, 07:56:06 pm »
Quote from: sabre on July 10, 2020, 02:58:12 pm
Just wondering how you guys go about making cowl vents.   The biggest I need to make is around two and a half inches or 63.5 mm.


Why bother making them, there are plenty out there at decent cost. Macs Mouldings & MMB are very reasonable.
Logged

sabre

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 106
Re: Cowl Vents.
« Reply #6 on: July 11, 2020, 10:45:23 am »
They large ones r 63.5 mm tall.  Yes I had thought of using plastic bends and or pipe but I threw out all my surplus diy hoardings when I moved house, as for purchase, i'm nowhere near a big model shop so every little purchase incurs postage and being an old fa*t living on the lowest pension in Europe I watch every rupee.  Scrooge hasn't got a look in. 


The next time I need to order stuff some tubing will be added to the growing list.
Logged

John W E

  • I see no ships !!
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 8,889
  • Location: South shields
Re: Cowl Vents.
« Reply #7 on: July 11, 2020, 11:10:41 am »
Logged
Knowledge begins with respect
But fools hate wisdom and discipline

sabre

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 106
Re: Cowl Vents.
« Reply #8 on: July 11, 2020, 10:34:40 pm »
Thanks for that, it's just the thing for the larger vents.  In fact it's perfect.
Logged

GG

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 367
Re: Cowl Vents.
« Reply #9 on: July 12, 2020, 11:50:52 am »
Could try plastic measuring spoons.
Glynn Guest
Logged

DaveM

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 711
  • Why on earth do I do this?
  • Location: Nottingham
Re: Cowl Vents.
« Reply #10 on: July 12, 2020, 12:04:23 pm »
Many of these are polypropylene and not easy to glue. What's your secret, Glynn?
Dave M
Logged

GG

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 367
Re: Cowl Vents.
« Reply #11 on: July 12, 2020, 02:23:27 pm »
Don't buy expensive ones, the cheap (but more than adequate of our hobby) spoons are made from stuff that is easy to stick with Bostik Clear glue or similar.
Glynn Guest
Logged

Geoff

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,217
Re: Cowl Vents.
« Reply #12 on: July 14, 2020, 11:50:24 am »
I look for a spherical object (perfume bottle tops are ideal) that is a little smaller than the cowl required such that its a rattle fit in a tube. I then heat plastic card over the gas put on top of the tube and push the sphere down. This gets a complete semi-sphere which can be cut off and solvent glued to a plastic tube. Once dry cut out the interior hole on the base of the cowl and final trimming gives a good cowl. One thing I always look at on a model are cowls with no interior hole so they can't possibly work!


Its both cheap and easy to do and many sizes are easy to make.


Hope this may assist.


Cheers


Geoff
Logged
Pages: [1]   Go Up
« previous next »
 

Page created in 0.104 seconds with 22 queries.