Login    Register
User Information
We are a free and open
community, all are welcome.
Click here to Register
Who is online

In total there are 65 users online :: 3 registered, 0 hidden and 62 guests

Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot] based on users active over the past 5 minutes

The Team
Global Moderators
global_moderators.png CS

Hinged fan mount

Come find a how-to on how to do something, or come write your own for other people.
  • Author

Hinged fan mount

Unread postAuthor: irickedit » Fri Sep 24, 2010 2:39 pm

I wanted a fan mount that would let the fan swing out of the way for breech loading without hanging from the wires. I cut a 3/4" piece of 4", the same as the chamber. Cut a fan size section out of it. Drilled the ends of the C slightly larger than a coathanger. Here I used two saftey pins and a piece of CH wire for the hinge because I couldn't find cotter pins in the garage. Squeeze the C and slide it in, it stays right where you put it.
  • 0

DSC00388 (Small).JPG
DSC00388 (Small).JPG (26.19 KiB) Viewed 1249 times
DSC00330 (Small).JPG
DSC00330 (Small).JPG (29.35 KiB) Viewed 1249 times
DSC00329 (Small).JPG
DSC00329 (Small).JPG (34.3 KiB) Viewed 1249 times
DSC00331 (Small).JPG
DSC00331 (Small).JPG (38.64 KiB) Viewed 1249 times

Posts: 5
Joined: Tue Sep 21, 2010 1:16 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Fri Sep 24, 2010 10:06 pm

Very ingenious, nice touch :)
  • 0

hectmarr wrote:You have to make many weapons, because this field is long and short life
User avatar
Donating Member
Donating Member
Posts: 24976
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 120

Unread postAuthor: SpudBlaster15 » Fri Sep 24, 2010 10:45 pm

Excellent idea, and it has me thinking about another potential application for this system.

Perhaps a hinged mount, in addition to a spring based energy absorption setup, could be used to help reduce damage to mixing fans in hybrid chambers. Much of the issue with fans in hybrid chambers seems to stem from the relatively high ΔP/t (Rate of pressure change) inside the chamber, which creates a significant pressure differential on the face of the fan. Typically, the fan ends up in several pieces after only a couple shots.

With a swivel mount in place, the fan would be free to swing up against the chamber wall, and avoid experiencing the stress of a mass fluid flow applying force directly perpendicular to it's largest (And weakest) surface.

Of course, one would still have to deal with the melting issue that comes into play when dealing with increased chamber gas density and the higher specific heat capacity values that go along with it, but that should be fairly easy to deal with through the creative application of heat shielding.

So who's up for testing it?
  • 0

User avatar
Major General
Major General
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: cfb_rolley » Tue Sep 28, 2010 4:35 am

that's a brilliant solution, well done! definately going to start building a coax soon using this
  • 0

User avatar
Master Sergeant
Master Sergeant
Posts: 166
Joined: Tue Mar 24, 2009 11:11 pm
Reputation: 5

Unread postAuthor: bighead33 » Tue Sep 28, 2010 6:43 pm

cool wish i had thought of that :wink: .
  • 0

some day spudfiles is going to take over the world.
User avatar
Posts: 98
Joined: Fri Feb 19, 2010 2:24 pm
Location: Stonemountain, Ga
Reputation: 0

Return to How-To Guide Database

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot]

Reputation System ©'