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Date: Thu, 05 May 2011 23:03:53 -0600
From: H & J Johnson <hjjohnson@sasktel.net>
Subject: Re: [FlyRotary] Re: 'open source' parts
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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I stand corrected Pat=2E The items I=27d seen did no look like something=
 that would be usable right =

out of the machine=2E Obviously there are other more capible systems tha=
n the what I=27d come =

across=2E I=27ll have to do some looking in that direction also=2E=2E  =

Lots of stuff to do =3A)

Jarrett Johnson
www=2Einnovention-tech=2Ecom =


----- Original Message -----
From=3A Pat Panzera =3Ceditor=2Econtactmagazine=40gmail=2Ecom=3E
Date=3A Thursday=2C May 5=2C 2011 4=3A39 pm
Subject=3A =5BFlyRotary=5D Re=3A =27open source=27 parts

=3E Sand casting aluminum produces a way worse finish than 3D printing=2E=

=3E Worse case is that you have to do some mild polishing of the runners=
=2C
=3E if indeed the fine parallel lines cause any negative anomalies=2E
=3E =

=3E On Thu=2C May 5=2C 2011 at 3=3A30 PM=2C H =26 J Johnson =

=3E =3Chjjohnson=40sasktel=2Enet=3E wrote=3A
=3E =3E Hey there Charlie=2E The technology to produce parts from a =

=3E substance vs out
=3E =3E of it =5Bie=3B additive fabrication rather than subtractive=5D i=
s =

=3E pretty new=2E
=3E =3E There are some forms of accomplishing the job but they are not =

=3E that cost
=3E =3E effective today =5Bany new technology is this way at the start =

=3E usually=5D=2E The
=3E =3E other limitation I=27ve seen is the quality of surface finish=2E=
 My main
=3E =3E exposure has been in reading about it and from the articles I=27=
ve =

=3E seen there
=3E =3E is generally a secondary machining operation required to get the=
 =

=3E parts to
=3E =3E dimension=2E That is all fine on simple parts but something like=
 a =

=3E manifold=3E brings new challenges as the interior of the various =

=3E sections need to be
=3E =3E smoothed out to get clean and consistant airflow=2E I think the =

=3E time and cost
=3E =3E of these two areas might preclude us using it at this point=2C =

=3E however as
=3E =3E things improve and the tech gets more affordable=2C this will =

=3E become the way
=3E =3E things are built in the future=2E Imagine if everything that was=
 =

=3E ever built
=3E =3E had a 95=25 reduction in waste fro m how it=27s built today=2E=A0=
 Your =

=3E car would be
=3E =3E alot cheaper to buy=2C etc etc=2E
=3E =3E
=3E =3E I love thinking outside the box=2E=2E=2E =5Bit=27s how I was abl=
e to build =

=3E my own cnc
=3E =3E mill!=5D
=3E =3E
=3E =3E Jarrett Johnson
=3E =3E www=2Einnovention-tech=2Ecom
=3E =3E
=3E =3E ----- Original Message -----
=3E =3E
=3E =3E From=3A Charlie England =3Cceengland=40bellsouth=2Enet=3E
=3E =3E
=3E =3E Date=3A Thursday=2C May 5=2C 2011 12=3A53 pm
=3E =3E
=3E =3E Subject=3A =5BFlyRotary=5D =27open source=27 parts
=3E =3E
=3E =3E=3E I=27m excited to see all the activity on the accessory cover/=
adapter
=3E =3E=3E plate=2C =26 don=27t want to divert any attention=2E But Ed=27=
s post several
=3E =3E=3E days
=3E =3E=3E ago describing how he made his intake manifold triggered a th=
ought
=3E =3E=3E that
=3E =3E=3E might need to go on the shelf for next action=2E
=3E =3E=3E
=3E =3E=3E The original idea that started all this was an intake manifol=
d=2E My
=3E =3E=3E intent is to use a very simple manifold similar to Tracy=27s =
Otter
=3E =3E=3E manifold=2C but for those who need a more complex layout=2C w=
hat about
=3E =3E=3E this=3A
=3E =3E=3E If Jarrett=2C or anyone else on here=2C has access to one of =
the new
=3E =3E=3E =273D
=3E =3E=3E printers=27=2C doing a manifold should be a piece of cake for=
 anyone
=3E =3E=3E with
=3E =3E=3E CAD skills (it ain=27t me=2E=2E=2E)=2E Apparently=2C there ar=
e 3D printers
=3E =3E=3E that can
=3E =3E=3E use all manner of materials now=2E I wonder if you could =27g=
row=27 an
=3E =3E=3E aluminum or other light/strong/chemical resistant manifold
=3E =3E=3E directly in
=3E =3E=3E the printer=2E Something similar to the plastic coiled tube
=3E =3E=3E manifolds on
=3E =3E=3E new V8=27s comes to mind=2E
=3E =3E=3E
=3E =3E=3E OK=2C back under my rock=2E=2E=2E=2E
=3E =3E=3E
=3E =3E=3E Charlie
=3E =3E=3E
=3E =3E
=3E =3E --
=3E =3E
=3E =3E Homepage=3A  http=3A//www=2Eflyrotary=2Ecom/
=3E =3E
=3E =3E Archive and UnSub=3A
=3E =3E http=3A//mail=2Elancaironline=2Enet=3A81/lists/flyrotary/List=2E=
html
=3E =

=3E --
=3E Homepage=3A  http=3A//www=2Eflyrotary=2Ecom/
=3E Archive and UnSub=3A   =

=3E http=3A//mail=2Elancaironline=2Enet=3A81/lists/flyrotary/List=2Ehtml