RC India
Welcome Guest, please login or register.
 
Pages: [1]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: December 08, 2013, 01:21:05 AM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia




Does anyone have access to the means and infrastructure to create a 6 or 7 blade Submarine prop (dia 55 mm) out of brass or any other non rust metal? Please contact me urgently.

This is what I am looking for.

Regards.


Yet again the 5000th post - check this:

http://www.rcindia.org/chatter-zone/rc-submarine/msg8972/#msg8972

Akula (mothballed project) to Virginia - long journey.

Note the misspellings of 'chennels' and 'lenght' - 6th and 11th lines respectively  Wink  - shameful! Grin


"Time is come round,
And where I did begin, there shall I end.
My life is run his compass."
JC - Act 5 Sc3 Pg 2

zzz prop1.jpg
Submarine Scimitar 6 blade Propeller
* zzz prop1.jpg (9.21 KB, 259x195 - viewed 1826 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
« Last Edit: December 08, 2013, 01:46:26 AM by VC » Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #1 on: December 08, 2013, 01:45:47 AM »
AnjanBabu
Aj Creations
Plane Lover
Forum Hero

*****

Reputation Power: 9 
AnjanBabu has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 576
Join Date: Jan, 2012



I think it's better to buy one if possible, than to get it machined.
To machine one, it might cost more than 2-3 times the retail price.
5 axis CNC and design services are quite pricey for the kind of precision the prop demands.
Casting 1 or 2 pieces might again be expensive, not to mention surface finishing and balancing.
Logged

Mechatronics engineer . Hopeless realist

anjanbabu.wordpress.com
 

Read
« Reply #2 on: December 08, 2013, 01:50:32 AM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



"Aye, there's the rub"

The cost of an imported 6 bladed prop ( US $ 50+) is more than the cost of my entire Submarine ( Tx/Rx not included) and I am not willing to spend that amount.

I would rather scratch build it for a fraction of the price. F

'Finishing and Balancing' for a prop that drives a hobby grade submarine are exalted/over rated terms. Trust me - my boats have run (and won Pan India Competitions) on props made out of Baked Bean can tops.
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #3 on: December 08, 2013, 01:57:38 AM »
AnjanBabu
Aj Creations
Plane Lover
Forum Hero

*****

Reputation Power: 9 
AnjanBabu has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 576
Join Date: Jan, 2012



Well, like I said, it might cost you twice the retail price to machine one. If it's for low speed applications, you can try hand crafting in wood or something like that.

If you're looking for any sort of 6-7 blade props, you can break open a few computer fans.
Logged

Mechatronics engineer . Hopeless realist

anjanbabu.wordpress.com
 

Read
« Reply #4 on: December 08, 2013, 02:00:57 AM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Thanks! That bit about Computer (PC Cooling fans) fans did come to my mind. However, it won't be to scale. Something that I don't approve of. Seems like I will have to take the difficult way out.


p.s. Anjan -

" Why buy something when you can make it with half the features and twice the cost? DIY!!  Cheesy"
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #5 on: December 08, 2013, 02:11:27 AM »
AnjanBabu
Aj Creations
Plane Lover
Forum Hero

*****

Reputation Power: 9 
AnjanBabu has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 576
Join Date: Jan, 2012



" Why buy something when you can make it with half the features and twice the cost? DIY!!  Cheesy"
Exactly what I've been suggesting, the cost factor could be an exception, though.

Buying is a habit I've saved for the lazy days. Grin
Logged

Mechatronics engineer . Hopeless realist

anjanbabu.wordpress.com
 

Read
« Reply #6 on: December 08, 2013, 10:59:24 AM »
aniket210696
Plane Lover
Forum Hero

*****

Reputation Power: 10 
aniket210696 has no influence.
Offline Offline

City: Pune and Goa
State: Goa
RC Skills: Beginner
Posts: 1184
Join Date: Feb, 2013



check out the proocessor fan for the intel atom.. thats tiny.....
Logged

oui
 

Read
« Reply #7 on: December 08, 2013, 11:23:19 AM »
AnjanBabu
Aj Creations
Plane Lover
Forum Hero

*****

Reputation Power: 9 
AnjanBabu has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 576
Join Date: Jan, 2012



VC bhai, I was thinking, why not break the blades off a cooling fan and glue them on to a properly indexed hub of whatever size that gives it the scale-look?
I had an AMD fan that has blades similar to the props above.
Logged

Mechatronics engineer . Hopeless realist

anjanbabu.wordpress.com
 

Read
« Reply #8 on: December 08, 2013, 11:18:54 PM »
Nithinraj Kotian
Living in my Dreams
Plane Lover
Forum Hero

*****

Reputation Power: 6 
Nithinraj Kotian has no influence.
Offline Offline

City: Mangalore and Dubai
State: Karnataka
RC Skills: Beginner
Posts: 592
Join Date: Aug, 2011



vc sir, you can try "Hair dryer" fan its looks like EDF only . Smiley
Logged

Life is Simple Don't Make it Complicated
 

Read
« Reply #9 on: December 08, 2013, 11:41:41 PM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



Thanks. Nairit is trying to work something out on CAD.

Anyone has a broken 2.5 inch PC cooling fan?
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #10 on: December 09, 2013, 01:46:00 AM »
AnjanBabu
Aj Creations
Plane Lover
Forum Hero

*****

Reputation Power: 9 
AnjanBabu has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 576
Join Date: Jan, 2012



If you had mentioned earlier today, I could have gotten you a few. The local junkyard is open only on Sundays.

If you can't find any in the following week, I can hunt down a few next Sunday.
Logged

Mechatronics engineer . Hopeless realist

anjanbabu.wordpress.com
 

Pages: [1]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
need propeller blade
Wanted
ek965 2 2947 Last post August 27, 2009, 11:42:30 AM
by rcdhamaka
6 blade propeller
Wanted
Ignatious 0 563 Last post February 10, 2017, 08:39:31 PM
by Ignatious
2 Pairs Dalprop Cyclone T3056C 3056 3-blade Propeller for RC Drone FPV
For Sale
akash007 0 330 Last post May 18, 2019, 08:53:48 PM
by akash007
Skipjack class U.S. Nuclear Submarine
Boats
DominicM 0 749 Last post September 16, 2019, 06:41:18 PM
by DominicM
Want 3-blade and 4-blade, 7 or 8 inch propeller
Wanted
Sinha@live.in 0 128 Last post February 24, 2021, 03:26:29 PM
by Sinha@live.in