What software are you guy's using?

[rcpilot82]

That looks neat, very unique!

[esc]

At 72" span you are going to need a fairly big (powerful) fan - Go for it!

Dave

[Mithrandir]

	Quote: Originally Posted by esc
	At 72" span you are going to need a fairly big (powerful) fan - Go for it! Dave

With those wings.. it will sorta be a motor glider!!

lol

[esc]

Have you any idea what the aerofoils are like?

Dave

[Mithrandir]

	Quote: Originally Posted by esc
	Have you any idea what the aerofoils are like? Dave

He he he he... I know exactly what they are like.... I lofted the wings and tails and the initial lofting for the fuselage and inlet...

but the sections are not suitable for models in the Rn range below 100,000

I would prolly use a Selig section or an mh section

[rcpilot82]

Well, I went to dig out my 1/16" balsa today and to my misfortune I found that I didn't have any!! ok, well I solved that problem by placing an order with rcfoam. I saw the selection of wood up at joe-nall and was impressed so I figured I'd try it out. So it is all on it's way, the buid may just be pushed back a few days till i can get it here. oops.

[Spooky]

rcpilot82 - First off, congrats on the soon to be new family member , also very nice work on the homemade CNC and very cool looking foamy racer too... Do you take on outside jobs for the CNC or are you using it strictly for making your kits? One more thing rcpilot82, when you get some of the cutting done, please share some pics with us. You know how machine shop guys like to check out others work.

esc - Striker it is then ... are you going to start a new thread for it so it's dedicated to just your build?

Mithrandir - Very cool looking stealth drone... I say go for it.

Dean

[esc]

OK, we'll leave this thread open for progress reports on my 3-D plane. Incidentally it does not have a name, cuttently it is just called EXPL001, would anyone care to give it one?

We can have a vote for the most popular name.

The question is do I post the revised Striker in the CAD/CNC section or do I post it in the scratch build section?

I have attached a taster PDF generated from AutoCAD 2010. Please forgive the incorrect colours - I was too lazy to try to correct them and as it is only a rough outline I did not think it warranted the effort.

What do you think of this:


Regards,

Dave

[Spooky]

esc - I think the Striker is looking good so far . I would think the scratch build section would be a good place to do the build thread, it's your call, either would do.... just make sure to tell us where.

Dean

[rcpilot82]

Dave, I agree that the scratch build section would be a good place for the striker. The wood has been shipped today, so however long it takes to get from GA to PA it will be here. I am horrible with coming up with names so I can't be much help there. perhaps something like 3D Rampage?? I dunno.

[esc]

Rob, that's good.

"Rampage" or how about "R-Ampage" goes to number 1.

Anyone care to offer another name?

Do you think anyone would kind enough on this CAD/CNC web site to cut us a vynil logo for Rob's plane?

BTW I had just made up my mind to buy "CompuFoil3D" when I discovered it was sold in modular form. So to get the modules I wanted it was going to cost $120 instead of the $38 I originally thought. Since I will not be using the software enough to warrant that expense I went back to reconsidering "Profili."

I have just sent the programmer an email and if the answer I receive in return is satisfactory I will go with "Profili" instead. Getting a nice smooth DXF file of the aerofoils I want to use is all that is holding back progress on the new design.

Dave

[Spooky]

Dave, just curious, are planning on making your own airfoil design/modifying an existing one?
The reason I ask is, with so many airfoil's out there to chose from, you have to ask yourself, is it worth the extra effort of buying more software, learning it, and using multiple programs to get what you want? .... For me, I like the least amount of effort to get the desired results, not that I'm lazy , but lean towards the quick and easy when it comes to this hobby, probably comes from my machining days, "get the job done" type thing. Anyway, I'm not trying to discourage you in any way, I like learning new software myself, just trying to understand more of what your thought process is.

OK, I'll throw a name out there --- "The Scimitar 3D " --- don't know, it doesn't sound quite right.

Dean

[esc]

Hi Spooky,

I believe you are trying to make the name just a little bit too complicated - "Scimitar" is fine on it's own. That's a good name and goes on the list.

Anymore anyone?

No I dot not want to design my own aerofoil, as mentioned previously I am planning on using an existing NACA 0015 15% section for the wing and possibly an NACA 0006 6% for the tailplane.

However, I still need that aerofoil shape either as an AutoCAD drawing or DXF file to import into Inventor. It's the generation of those smooth accurate curves that I want to get right.

Am I missing something, do you have another way of achieving this? - if so please do tell.

Dave

STOP PRESS- I have just received some new information and instead of the 15% wing section I intended to use I may now opt for an NACA 0013 13% thickness.

[rcpilot82]

	Quote: Originally Posted by esc
	STOP PRESS- I have just received some new information and instead of the 15% wing section I intended to use I may now opt for an NACA 0013 13% thickness.

What plane are u changing???

[Spooky]

	Quote: Originally Posted by esc
	However, I still need that aerofoil shape either as an AutoCAD drawing or DXF file to import into Inventor. It's the generation of those smooth accurate curves that I want to get right. Am I missing something, do you have another way of achieving this? - if so please do tell. Dave

You just draw the airfoil in inventor, by either copying off of a pic of the airfoil or import a pic into CAD and make a sketch off that... and I use splines, not curves to make the airfoil shape, which allows me to smooth out the splines if I'm not happy with the airfoil shape I've drawn... I'm not sure what the command for that is in inventor, but in SolidWorks it's "Simplify Spline", which basically just smooths out the spline by removing some spline points.
I guess what I'm trying to say is, it doesn't have to be perfect, you can drive yourself crazy trying... ask me how I know.

Hope that helps,
Dean