[AR] Re: Connections...

  • From: David Gregory <david.c.gregory@xxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Tue, 22 Dec 2015 19:51:07 -0800

-2 is as small as they get, realistically. 5/16-24 thread

You can use basically the same boss port profile in the 10-32 thread.

Ben are you talking about as1098 fittings? Aka "nose seal fittings"

I like to just print in tube stubs and swage on those directly.

On Dec 22, 2015, at 7:07 PM, Paul Breed <paul@xxxxxxxxxx> wrote:

Its made of aluminum....

How small can you get AS-5202 fittings?

I've used the 10-32 fittings and the flow path is just slightly maginal for
the fuel...



On Tue, Dec 22, 2015 at 6:19 PM, Ben Brockert <wikkit@xxxxxxxxx> wrote:
Parker has a line of male AN fittings that include a teflon seal in
the 37 degree face. I expect it's possible to print one. I haven't had
the chance to prove it yet.

Anodizing the part will help make it possible, in addition to making
the regen portion a lot easier.

On Tue, Dec 22, 2015 at 8:05 PM, Paul Breed <paul@xxxxxxxxxx> wrote:
Looking for suggestions on how to terminate fluid and pressure sensor
connections in a 3D printed chamber.


The blobs of metal for the fuel connection and the chamber pressure sensor
are significant parts of the chamber weight.

https://pbs.twimg.com/media/CW3wUbqUAAA5Ciu.jpg:large

this is the flight weight chamber fully accounted including cat pack lid
and
internal parts will have a
thrust to weight of > 110

Paul





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