[PSUBS-MAILIST] (no subject)

[Alan]

Hi Joe,
The struts from the kort nozzle to the sleeve that the motor fits in were made of
balsa wood & covered with fibreglass. A bit time consuming trying to get a good
finish. If I were making these again I think I would cast the kort nozzle out of aluminium
using a lost foam method. ie. make several polystyrene nozzles on a lathe or CNC
machine. Embed them in sand & cast into them.  There are plenty of videos on this.
Then CNC the struts & use the nearest standard aluminium pipe for the motor sleeve,
& weld it all together.
I think this method would lend itself to CAD construction.
I have made a number of moulds in the past, but not for aluminium.
Alan

Sent from my iPad

On 30/10/2013, at 4:27 PM, Joe Perkel <josephperkel at yahoo.com> wrote:

> 
> Alan,
> 
> That's not going anywhere, quite snug and secure in there. What material is the webbing?
> 
> Is it possible to braze a tab on one of the MK's in order to thru bolt the concentric ring?
> 
> Joe
> 
> Sent from Yahoo! Mail for iPad
> 
> From: Alan <alanlindsayjames at yahoo.com>; 
> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>; 
> Subject: Re: [PSUBS-MAILIST] (no subject) 
> Sent: Wed, Oct 30, 2013 2:22:43 AM 
> 
> Joe,
> I just sent you a photo of how I attached my kort nozzle.
> It might give you some ideas, it's 1.2mb so look out for it in your spam.
> Alan
> 
> Sent from my iPad
> 
> On 30/10/2013, at 1:05 PM, Joe Perkel <josephperkel at yahoo.com> wrote:
> 
>> Im going to try to attach an image. Here is what Ive done for a MK 101 Kort Nozzle with .11 tip clearance for an 11" prop.
>>  
>> I need to finalize body attachment, the streamlined ABS struts have threaded rods through them.
>>  
>> Joe
>> <Minn Kota Kort.jpg>
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