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Designing a new pattern model

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Old 07-25-2009, 04:15 AM
  #1
Alex Voicu
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Default Designing a new pattern model

I started flying pattern about 1.5 years ago (mostly small models of 50 or 63 size) and since then i've been trying to find a 2m model that's cheap, modern looking and has good flying characteristics. Since all modern pattern planes on the market today are way over my spending limits, i recently started designing my own model using Solidworks. I'm almost done with the design part so i'll post a few images showing the main steps of the process.

From the start, i wanted to design the airframe keeping both electric and glow power in mind. The YS 170 is quite a big piece of equipment comparing to the electric motors, so it looked reasonable to design the front end of the plane around the Yamada engine. I don't own a YS myself, but using drawings from the manual and images i found on the internet, i started building a basic 3D model of the YS170. Well, i got a little bit carried away in the process and ended up recreating it in detail.



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Old 07-25-2009, 04:20 AM
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Alex Voicu
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Default RE: Designing a new pattern model

2 renders of the engine in Solidworks, with materials added to the engine components and adjusted lighting:



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Old 07-25-2009, 08:02 AM
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Default RE: Designing a new pattern model

Wow. Nice work.

-mark
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Old 07-25-2009, 10:12 AM
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Default RE: Designing a new pattern model

OMG ... some people are so so skilled! It will make a great wall paper for the PC ... can't wait to see your plane rendition.
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Old 07-25-2009, 12:26 PM
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Man that looks awesome I cant wait to see the plane you design
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Old 07-25-2009, 12:35 PM
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I wish I was that good at solidworks! Nice job.
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Old 07-25-2009, 01:40 PM
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Default RE: Designing a new pattern model

Holy smoke, until I read the comment on Post #2 I thought I was looking at a stock photo that you pulled from YS!

Keith B
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Old 07-25-2009, 08:51 PM
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Awesome!
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Old 07-25-2009, 10:27 PM
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WOW awesome!

You must do that for a living [:-]
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Old 07-26-2009, 01:02 AM
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If not, you should be, I DO do that for a living, and that beats most of my work!
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Old 07-26-2009, 01:49 AM
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Default RE: Designing a new pattern model

Fantastic, you have done an awesome job. Can you share the file so we lesser mortals can learn from your design tree? I have done a DA 50 recently but it is nothing on this.
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Old 07-26-2009, 02:27 AM
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Absolutely unbelievable. Can't wait to see your plane's drawing

Adrian
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Old 07-26-2009, 01:57 PM
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Thank you for the kind words; i'm really glad you like it.
I work as a CAD/CAM engineer since 2000 and 3D modelling is one of my hobbies; unfortunately most of my projects at work are not as interesting as designing pattern planes

For those who are interested in the 3D model of the YS170, i can probably upload it somewhere in IGS or STEP file format. Most CAD software are able to read these formats, but sometimes errors may occur. The Solidworks model is split in 2 files and the total size is simply too large (over 500Mb). Just send me a message at a_voiku -at- yahoo dot com and i'll see what i can do.

Fuselage will be composite with a conventional layout: a removable chin cowl covering the engine and Hatori muffler and a canopy hatch which i think is large enough even for the electric version. Here are a few shots shots showing the main fuselage modelling steps:
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Old 07-26-2009, 10:22 PM
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Quote:
ORIGINAL: Alex Voicu

Thank you for the kind words; i'm really glad you like it.
I work as a CAD/CAM engineer since 2000 and 3D modelling is one of my hobbies; unfortunately most of my projects at work are not as interesting as designing pattern planes

For those who are interested in the 3D model of the YS170, i can probably upload it somewhere in IGS or STEP file format. Most CAD software are able to read these formats, but sometimes errors may occur. The Solidworks model is split in 2 files and the total size is simply too large (over 500Mb). Just send me a message at a_voiku -at- yahoo dot com and i'll see what i can do.

Fuselage will be composite with a conventional layout: a removable chin cowl covering the engine and Hatori muffler and a canopy hatch which i think is large enough even for the electric version. Here are a few shots shots showing the main fuselage modelling steps:
Alex,

Drawing a model and designing a model are not the same thing. Sure you can copy parameters from other models like everyone else does. If you want to do something more original on the design side. contact me directly

MattK
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Old 07-27-2009, 09:16 AM
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amazing!! I like it!

keep the good work
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Old 07-27-2009, 02:49 PM
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Alex Voicu
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Modelling the wings and horizontal tail surfaces is much easier than the fuselage. The airfoil is a modified NACA 64A012, with the trailing edge thickness of 7mm at the root and 4.5 mm at the tip.
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Old 07-27-2009, 05:24 PM
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Alex! Small world.
As usuall, stellar 3D work.
Darrin, AKA "Hammerd"
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Old 07-28-2009, 12:32 AM
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Alex Voicu
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Hi Darrin !

It's so good to meet you again. Brings back great memories...of years of hard work
What have you been up to lately? Interested in pattern flying or RC models in general?
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Old 07-28-2009, 12:54 AM
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Default RE: Designing a new pattern model

Hi Alex,

Have you drawn a 3D model of a OS 1.60 engine i am also building 2X2 F3A plane for a OS 1.60 engine, your skills are truly amazing, how long have you been working on 3D software. Please guide me how to get started as basics to advanced.

Thanks,
High
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Old 07-28-2009, 01:27 AM
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High,

I don't have a model of the OS160, but i do have a very basic model of the OS 140RX. Unfortunately it's not very precise, but if you have Solidworks you can understand how it was built. Modelling an engine is not that hard, after all it's a combination of very basic shapes. To get started, just try to find some detailed tutorials or modelling manuals for your CAD software. You will need a lot of practice though... I built my first 3D airplane model probably around 1997 in AutoCAD, but trust me, you don't want to see that one
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Old 07-28-2009, 05:04 AM
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Fantastic!! that's a great job!!!!
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Old 07-29-2009, 01:10 PM
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A few renders of the servos, wheels and propeller. More important, all parts will receive their mass properties, which will be used to compute the CG position.
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Old 07-29-2009, 08:50 PM
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this will be fun to watch.
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Old 07-29-2009, 09:57 PM
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Default RE: Designing a new pattern model

Wow, I also thought the YS was a picture until I saw the drive washer, outstanding abilities, and your plane will fly good, it looks great.

Regards

Alejandro
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Old 07-29-2009, 10:56 PM
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Default RE: Designing a new pattern model

again, congratulations! that plane look realy good.

do you plan to sell a kit?

TUNY
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