1 Topic by corey.fussell

  • corey.fussell
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Topic: XYZware red vs. green virtual object

When I'm looking at my imported and fixed stl object, I'm not sure what the difference is between a green and a red object on the XYZware virtual deck. I assumed that it meant a valid or invalid print, but I can still print objects when they're red. And the model will turn green with material clearly extending over the edge of the virtual deck. I don't get it. Anyone have this figured out yet? I'm on a Mac running the 1.0b8(1A329) version. My model won't import or slice if I run the newer software. XYZware is not Mac friendly at all.

In the 'still-red' photo, the model has been centered and landed. Not sure why XYZware doesn't like it.

And what's with the scale that you can't get on an integer value?? Anyone figured out how to input the scale you want? Thanks all.

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2 Reply by heidkampn1

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Re: XYZware red vs. green virtual object

The green means it's bigger than the build volume. You can see that the planes is larger than 200 mm.

3 Reply by heidkampn1

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Re: XYZware red vs. green virtual object

I believe those colors can be changed in the settings. It's just what xyz set as defaults

4 Reply by corey.fussell

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Re: XYZware red vs. green virtual object

Awesome, thanks so much! I should have caught that.

5 Reply by ggunners

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Re: XYZware red vs. green virtual object

Looks sweet. Is that a little glider or a model not meant to fly?

SD2 Expert stock, ABS fume fan,
XYZ DaVinci 1.0 stock ABS, Simplify3D
QUBD Two-Up PLA, new 3D printed X gantry, Y idler, flex z coupler, extruder mount, E3D Lite

6 Reply by corey.fussell

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Re: XYZware red vs. green virtual object

Thanks gunner, it is an ultralight aircraft I'm designing. Using daVinci to print a wind-tunnel model. Hopefully the experimental data will match the mathematical projections. I hope it flies one day.

7 Reply by ggunners

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Re: XYZware red vs. green virtual object

That design is a beauty. Love the blended wing/fuselage.

SD2 Expert stock, ABS fume fan,
XYZ DaVinci 1.0 stock ABS, Simplify3D
QUBD Two-Up PLA, new 3D printed X gantry, Y idler, flex z coupler, extruder mount, E3D Lite

8 Reply by corey.fussell

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Re: XYZware red vs. green virtual object

Good eye, sir! Every cross-section of the plane is an airfoil. I'm hoping to combine this design approach with a radically lower weight than is typical even for an ultralight. Slowly working toward a crowd-funding campaign so I can build a flyable prototype. Thank you for the encouragement.

9 Reply by ggunners

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Re: XYZware red vs. green virtual object

I've helped a few people use RC modeling software for gross testing of RC airplane designs. With the right data, the models can be surprisingly accurate. Yours will be tougher because you really need different airfoils for specific areas of the wing surfaces and most of the sims don't use complex airfoils for the fuselage. If you have the design, a foam cutter can make the model and a bit of water based polyurethane over thin fiberglass can provide sufficient strength.

Will you be using a laminar flow design? From what I've heard, they are awesome for efficiency but need care and feeding in the real world. It turns out that bug carcasses and water on the wing will reduce the efficiency.

SD2 Expert stock, ABS fume fan,
XYZ DaVinci 1.0 stock ABS, Simplify3D
QUBD Two-Up PLA, new 3D printed X gantry, Y idler, flex z coupler, extruder mount, E3D Lite

10 Reply by corey.fussell

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Re: XYZware red vs. green virtual object

Gunner,

What software could I use to model the in-flight characteristics of the model? I agree about changing the airfoil across the span of the airframe but I'd like to know how it will behave in its current configuration.

11 Reply by ggunners (edited by ggunners 2014-10-14 15:55:53)

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Re: XYZware red vs. green virtual object

A lot of people use X-Plane which models real aircraft with good accuracy, but I have not.

I have used Flying Model Simulator 2.0 Alpha 8.5 (FMS) which has a 3rd party editor that is pretty nice and some 3rd party write-ups on how to create 360 degree POLAR files. You would usually have one FMS POLAR defined per specific airfoil. See this link.

FMS is usually used for remote control (RC) models only. But I have used it for large UAV modeling to verify gross lift capabilities based on wing-loading and power plant.

I have also RC modeled with ClearView(CV), Aerofly Pro Deluxe (AFPD) and RC Desk Pilot (RCDP). FMS is pretty easy to understand if you already know the basics of flight physics. Both CV and AFPD have a high learning curve and need a little bit of magic (trial and error) to derive accurate flight characteristics. RCDP works OK but the flight physics and collision capabilities are less than FMS in most cases.

FMS is very old, last updated in 2004. So, sometimes it is difficult to get running on newer versions of Windows.

If your goal is to create a full size airplane, I would probably learn to model with X-Plane.

SD2 Expert stock, ABS fume fan,
XYZ DaVinci 1.0 stock ABS, Simplify3D
QUBD Two-Up PLA, new 3D printed X gantry, Y idler, flex z coupler, extruder mount, E3D Lite