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Does somebody knows the Cox Zaunkönig? Babe_b10
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Does somebody knows the Cox Zaunkönig?

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Does somebody knows the Cox Zaunkönig? Empty Does somebody knows the Cox Zaunkönig?

Post  bnitram on Sat Mar 01, 2014 6:14 pm

Hello all,
you know(or not) that I comes from Germany. Here is one cox model very known. Its the Cox Zaunkönig. At the moment i am building my own and I would like to know if someone here in the forum the Cox Zaunkönig knows?

Here is a picture from one:
http://www.ronald-valentine-engines.com/images/zaunkoenig-2.jpg

And my looks so at the moment:
Does somebody knows the Cox Zaunkönig? Img-2010


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Post  Cribbs74 on Sat Mar 01, 2014 6:20 pm

Never heard of it. Looks like it would scoot!

Zaunkönig sure is a round about way to say "Wren"  Very Happy 

Your model looks great and I hope it flies well for you.

Ron
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Post  duke.johnson on Sat Mar 01, 2014 7:43 pm

Very nice looking plane. Did you buy a kit or are you scratch building it?
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Post  navion34 on Sun Mar 02, 2014 2:54 am

Hello,

Yes I know this plane. Made by Simprop.
Never had one but it seems to me that this plane is very fast.
Not for people with heart failure...

I hope to see it ready for flight, fully finished.

Rémy
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Post  Kim on Sun Mar 02, 2014 6:11 am

VERY Good-Looking Plane !! Please be sure to post more photos as you finish it !!!


Last edited by Kim on Sun Mar 02, 2014 10:37 am; edited 1 time in total
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Post  RknRusty on Sun Mar 02, 2014 8:45 am

Nice neat work, Bnitram. Thanks for posting.
Rusty

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Post  bnitram on Tue Mar 04, 2014 7:21 am

Hello,
Thanks for the feetback Smile

but it seems to me that this plane is very fast.
Yes, of course.. Its a very crazy plane...

Did you buy a kit or are you scratch building it?
Yes and No... I took a picture of the original plan from the Internet and convert it into dxf files so that my CNC Mill can work for me Smile
You can see it in the picture. So it was like a kit but made by me.
Does somebody knows the Cox Zaunkönig? Img-2011

Does somebody knows the Cox Zaunkönig? Img-2012

Does somebody knows the Cox Zaunkönig? Img-2013

Does somebody knows the Cox Zaunkönig? Img-2014

I think i will make another thread if the plane is finished...

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Post  roddie on Tue Mar 04, 2014 9:10 am

Nice to have a machine! Do you use a vacuum table/pump to hold the balsa sheet from moving? I used to make parts like this on a large Gerber CNC router. I put masking (sticky) paper on the back of the sheet, and cut down to the paper.. but not through it. I set/initialize "Z" axis to the table.. and set tool-depth about .002" to .003" above the table. The parts "peel-off" the paper afterwards, and don't need much sanding.

If you don't have a vacuum table, you can easily make a sealed/air-tight box of size you need.. maybe 6"W x 48"L x 4"H to hold a standard 3" x 36" balsa sheet. Face top (use thin 2-sided film tape) with 6mil ABS sheet, mill-flat w/fly-cutter and make a grid of 3/4" i.d. pockets spaced about 1" apart with 3/16" thru-holes on center of pockets.

Does somebody knows the Cox Zaunkönig? Vac_ta10



This is CNC router machine with vacuum table like the one I used.
Does somebody knows the Cox Zaunkönig? Vac_ta11
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Post  navion34 on Tue Mar 04, 2014 10:40 am

OMG !!!

That's really a very good job. Maybe one day you will produce some kits...

Best regards,

Rémy
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Post  bnitram on Tue Mar 04, 2014 1:03 pm

Hello,
Do you use a vacuum table/pump to hold the balsa sheet from moving?

No. I only hold the Balsa sheets with some thumbtack(Reißzwecke) in place, but that works great as well if the wood isnt bent.
But your idea is great as well Smile

That's really a very good job. Maybe one day you will produce some kits...
Thanks, too. Yes maybe. I even have one in order for a frend of me.

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