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Old Jun 06, 2013, 06:33 AM
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Build Log
Dornier DO 26 Seeadler

Hi everybody,
I made decision to build one of most beautiful seaplane as I know.
Dornier DO 26 Seeadler.
Because I do not have much time I have change strategy how I will build.

I created model in computer and then asked my friend to do it with CNC technology.
As I discovered CNC technology is very good technology but need a lot of preparation before something is done in machine.
Probably because it cost time to think how should be shape of part done with cnc technology.Anyway now I am able to reproduce each part because everything now is in electronical version

I was use three type of machine:
1. 3d cnc milling machine
2. 3d cnc cutting machine for wing from foam
3. 3D printer REPRAP

I hope I will add some picture.
I have started to do this last year but because lack of time I would like to share with you some pictures.

Basic parameters of model:
Wing span 2000 mm for my toyota corolla car .
Power 2 electric engine ala axi 2826 ...
Rest 2 engine I will not mount.
Weight 4500 g.
Battery lipo 5000 4SP1


Marek
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Last edited by marecisko; Jul 07, 2013 at 01:51 AM.
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Old Jun 06, 2013, 06:51 AM
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centroplan

Another view of Dorniers centroplane.
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Last edited by marecisko; Jun 06, 2013 at 09:01 AM.
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Old Jun 06, 2013, 07:03 AM
KNS
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Switzerland, SO, Olten
Joined Dec 2012
399 Posts
wonderful! Please tell us more
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Latest blog entry: Latest concluded projects
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Old Jun 06, 2013, 07:11 AM
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120 Posts
Completation

Former posts were done last year 2012. In this year I have made some progress too.
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Last edited by marecisko; Jun 06, 2013 at 08:17 AM. Reason: detailed.
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Old Jun 06, 2013, 07:28 AM
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Wing preparation

I do not have experiences with polystyrene because I normaly build wing from balsa or plywood but water is not good for balsa. That I choose plastic material
.Marek
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Old Jun 06, 2013, 07:37 AM
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Measuring

Now I want to check dimension because it last time when I can change something.
I was using laser . It is more easy way how to checked . I do not have proffesional laser but I think it is enough for me.

One think each part is from different collor of polystyrene . It is because shops sometimes do not have sizes which I required . Unfortunately quality is different .

Now is almost everything done before covering everyting with epoxy L 285. The shape is very complecated but cross finger that everything will done ok . I hope because I aked for help one of the big laminator in Czech republic is Venca.
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Last edited by marecisko; Jun 06, 2013 at 08:33 AM.
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Old Jun 06, 2013, 08:12 AM
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120 Posts
Folding mechanismus

Last photos.
One of most complicated parts is mechanism of folding of folat to wing.
I thinking about it a lot but I am not very happy what I desined.
First I am using mechaism for normal landing gear.
I build arround it holder of float.
From my point of view is too complex.
Original seaplane has diferent but I am not able produced it.

Here is simulation how it looks like with rela mechanism.
folding float for dornier do 26 (0 min 44 sec)


It is getting me crazy how I will solve this problem.
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Old Jun 06, 2013, 09:45 AM
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Johannesburg, South Africa
Joined Apr 2007
833 Posts
Beautiful aircraft and model.

Quote:
Originally Posted by marecisko View Post
Hi everybody,
I made decision to build one of most beautiful seaplane as I know.
Dornier DO 26 Seeadler.
Because I do not have much time I have change strategy how I will build.

I created model in computer and then asked my friend to do it with CNC technology.
As I discovered CNC technology is very good technology but need a lot of preparation before something is done in machine.
Probably because it cost time to think how should be shape of part done with cnc technology.Anyway now I am able to reproduce each part because everything now is in electrically version

I was use three type of machine:
1. 3d cnc milling machine
2. 3d cnc cutting machine for wing from polystyrene
3. 3D printer REPRAP

I hope I will add some picture.
I have started to do this last year but because lack of time I would like to share with you some pictures.

Basic parameters of model:
Wing span 2000 mm for my toyota corolla car .
Power 2 electric engine ala axi 2826 ...
Rest 2 engine I will not mount.
Weight 6500 g.
Battery lipo 5000 4SP1


Marek
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Old Jun 10, 2013, 12:49 PM
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Floats

Hi ,
I have made some progress with floats.
Float is combinantion of foam and parts made from plastic.
Plastic parts were done on 3d REPRAP.

Marecisko
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Old Jun 12, 2013, 05:27 AM
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Floats part2

Hi,
finaly I have prepared place for mouting of Floats.
It was so difficult.
And I hope it will work properly.
Dornier DO 26 (1 min 4 sec)
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Old Jun 12, 2013, 09:40 PM
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United States, IN, Lafayette
Joined Dec 2003
417 Posts
Your plane is very nice so far. It is looking good. Are you going to use 2 or 4 motors?
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Old Jun 13, 2013, 07:27 AM
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Joined Nov 2007
120 Posts
Hi , I want to use just 2 engines 4 should be complicated


Quote:
Originally Posted by Jack Brewer View Post
Your plane is very nice so far. It is looking good. Are you going to use 2 or 4 motors?
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