Subject: Cowl dwg contest
From: Rotary Engine
Date: 3/1/2010, 9:29 PM
To: AAA Put this in the To box



Here is the challenge.
Start with this data and do a 3D cowl
for an RV10 that looks like this one using what
ever 3D program you have.

It must be rendered.
Assume a 12 inch spinner.
It must be to scale.

This is all the info you have to go on.
Assume max width is 41 inches.

I will be the judge and I will abstain
from doing one now.

You must submit a iges or stp file.

All the guys touting their favorite 3D program on here
so far must participate or they will be vilified and ridiculed :)
In other words put up or shut up :)

Paul Lamar

Paul, heres a quick kick at the cat..
Jarrett

I am going to change the rules here just a bit.
 You must submit one of the three file extensions.
 .iges .stp or .stl I prefer .stp.
These will be kept private. I will use them
 to render top view, side view, front view and perspective for
 purposes of judging each entry.
You must also submit at least one rendered jpg.
At the end of the week I will render and publish 4 views on
 each entry. I will not judge the winner. The readers will judge
 the winner by voting after they see the renderings.
 The judging criteria is how close the submissions look like
 the stock RV10 cowl.
This will even the playing fields as the same rendering
 program will be used for each entry. This is not a contest
 of rendering programs.
Jeff is allowed to submit another entry due to the fact
 I already rendered and published his entry and the rules
 have changed.

Paul

 Paul, would you like me to re-submit in a different format? I
 think I'd sent
 a parasolid but I can send it as something else?

 Jarrett

 .stp and .iges both. I'll check and see which one Rhino 3 likes
 the most.

 Paul Lamar

Paul heres the IGES version btw were you able to open the X_T
[parasolid] file?

Jarrett

I did not try the parasolid. I don't think Rhino 3 handles it but
I will check and let you know. Thanks for the iges and step

-----------------------------------------------------

The iges worked but the step crashed Rhino. Nothing
new there :)

Bill wanted me to let him know but I declined :)


Paul Lamar

There is actually two versions of the Step file. I tried the
latter version
but I can re-send w/ the other version if you want?

It's a bit of a large file.. lots of info in these organic shape
files..
The IGES solid file [the one I sent was a simplifed surface only
file] was
39Mb.

Jarrett

I am surprised it got by earthlink :)
The iges you sent will be sufficient.
My earthlink mail box is only 200meg.

PaUL

Sorry, the IGES file I sent was only ~3Mb [it was the "surface only"
version] the Solid version [had a enclosed volume which was 0.06"
thick < the "body" of the cowl] was 39Mb but I didn't try to send it
as it breaks the 10Mb rule.. I've yet to see anyone be able to
accept an email into their inbox w/ more than 10Mb.

Jarrett



Paul, Cowl contest entry using Rhino V4 hopefully will attach, I did
JPEG,
STL, IGES ( one of 19 flavors) and STEP (only 3 to choose from). All these
files appeared to be wriitten instantaneously so they are suspect. My
rotary engine file takes 45 seconds?The second JPEG is due to a question of
the shape of the cowl cut which I saw on the rotary engine profile. I have
included the ducts to two 6 X 8 oil coolers behind the chipmunk cheeks
inlets.I also made the shape wider and deeper just in front of the intake
tube to get the engine profile inside of the cowl. if you should in future
have any real use for this part I can send you the .3DM by snail mail.Note
that the JPEG "multiple views" show the cowl and fusaloge joint but the
iges is the square cut cowl only. The extended view seemed to look better
than the cowl alone and we are calling this a contest. Does the winner get
a
free lemonade at sun-n-fun?

george grimes

Duly noted George. Results of the contest this coming weekend.

Paul Lamar



Paul,  I already sent it apparently to myself somehow, did you get either
of the files?  George G

Yes I got them George and the iges loaded into Rhino no problem.
We will publish everything at the end of the week so people
can vote. Do we need secret ballots everybody?


Paul Lamar

-- 
The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Youtube key word PaulLamar2
Copyright 1998-2009 All world wide rights reserved.