Eagler's Nest
Airframes => Single Seaters => Topic started by: Winston on February 26, 2019, 11:38:29 AM
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I am still in the cogitating stage and since I regularly use AutoCad, I decided to produce a 2D cad version of the fuselage plans. This is not an attempt to improve on the plans but just to help me visualize things. This has helped me on past airplane and other projects, so if anyone is interested I am attaching a pdf of what I have so far.
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Nice
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You are showing the rudder post as 9". My XL plans show 11-3/4" The 2-3/4" extra goes above the upper longeron. The vertical stabilizer spar fits into this portion of the 7/8" post. I guess some of the XL plans are different. My plans are H-51.
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You are right and I think my plans are the same. My CAD drawing did not show sufficient tailpost detail but I have attached a revised drawing. Since the (9" dimension is a center to center dimension, I think the tailpost projection above the upper longeron should be approximately 2 3/8" (11.75 - 9 - 0.3125 - 0.3125 = 2.375).
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Looks Great! I see you put a 7/8" x 0.065" tube for tailpost. I found that a 7/8" x 0.058" tube will fit the 3/4" aluminum vertical stabilizer spar without reaming the tailpost. Some people have said an 0.065" wall tube needs a little reaming. My 4130 tubing datasheet shows a 0.745" ID for 0.065" wall and 0.759" ID for 0.058" wall. Thanks for working on the drawing.
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Great work Winston! Outstanding. Do you have a .DXF file? I would like to build a 1/3 scale model
and finish it like my Eagle. Your drawing would really help!
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These look amazing! I was hoping to do the exact same thing with my CE plans. I don't have any experience with CAD though.
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These look amazing! I was hoping to do the exact same thing with my CE plans. I don't have any experience with CAD though.
Are you folks aware of the fantastic program availability with the EAA and SolidWorks? Basically your membership allows you to get and use a very expensive program. (free) If your not a member... and want this access, the membership cost is trivial in comparison.
If you can't find the details, let me know, and I will get you going in the right direction.
I help teach this and show the basic's at OSH each year. There are NO strings attached that I have seen.
For a person wanting to make a 3-D version, and wanting A 2-D drawing, this won't get you all the way there... But with your plans and solid works, it is NO problem. (and then your scale model won't be any problem as well) In SolidWorks, there are about 6 ways to do nearly anything, but there are two different but very simple ways that work well for this.
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Just downloaded Solidworks and going to mess with it a little bit. I've tried it before and just wasn't really getting to where I wanted to be. I'll have to check out your class at EAA this year.
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Scott is absolutely right that EAA's Solidworks offering is a great opportunity and probably worth the membership dues alone. I did my drawing in 2D AutoCad just because that is what I am most familiar with and as I indicated earlier, I did it just to help me visualize the fuselage layout and not in any attempt to improve on what others have done. This sort of computer doodling has been very helpful to me for thinking through parts of previous projects and I wish I felt more comfortable with Solidworks.
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Looks like some are trying the EAA Free SolidWorks download.
- Almost any question you have can be found on some sort of YOUTUBE showing. With about 80% being pretty good.
- If you don't understand the answer from someone, there is a likely a better more understandable answer out there.
- Getting started use the basic tutorials that are included with the software
- save often (even down to 5 minutes) to avoid loosing your work.
- Pay attn. to the first three "sketch planes" they will be your friends forever in your sketches.
Best of success.
Scott
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Hi, Tom Kyler here, new builder. I too am performing a 3D 'virtual build' to help understand the plans and construction. For those interested and software saavy, an alternative to Solidworks is Blender 3D, which is free and a relatively small download. The learning curve is still required as would be expected with any new software, but I believe it is no more complex than Solidworks (which I use in my engineering day job). Blender is NOT a CAD software, but rather a generic 3D/animation software...no history based or parametric modeling, but its ridiculously quick to build geometry for "what if" scenarios. The following work I did in about 2 hours. Note that I do use a CAD package (Vectorworks) to develop the design dimensionally from the plans...but then I use the CAD reference dimensions as inputs to Blender 3D.
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Very Nice - I have also been doing the same - looks like a lot of us are all doing the same thing. In my case I am using Fusion 360 :)
Galery location:
https://gallery.autodesk.com/fusion360/projects/legal-eagle-xl
(https://www.eaglersnest.com/forum/proxy.php?request=http%3A%2F%2Fbuildlog.virtualmakerspace.com%2Fae73a685-6223-4c6c-914e-bb46ffd58ebb%2F&hash=14c4092a67fbd9cf93f85123e08401c391130cd2)
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Very Nice - I have also been doing the same - looks like a lot of us are all doing the same thing. In my case I am using Fusion 360 :)
Galery location - https://gallery.autodesk.com/fusion360/projects/legal-eagle-xl
(https://raas-render-prod.s3.amazonaws.com/EY46RE9TUJ66/5c735ae1-941f-47a4-a0ac-e877228a4352/image.0.PNG?AWSAccessKeyId=AKIAI2E3KVRFLGAFLOPA&Expires=1566609804&response-cache-control=public%2C%20max-age%3D86400&response-expires=Sat%2C%2024%20Aug%202019%2001%3A23%3A24%20GMT&Signature=EPho%2FNSu2DOr23Y2p8UyHWElozk%3D)
It is listed as a gallery, but this comes up
This project is not public yet. You are not authorized to view it.
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Strange - I looked at the link with another browser where I was not logged on and I could still see it. Maybe I was still messing with the gallery at the time.
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I just clicked on your link and it came up fine. Drawings look good. Are you planning to draw some closeups of assemblies, like controls, ailerons, landing gear, etc?
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Hi Everyone.
I really appreciate all the drawings and building hints on this site. I am trying to decide between the LE, or LE XL. I weigh in at 200# and am about 6’ tall.
It really helps to see these drawings when trying to decide on the model I want to build. I’m sure I will have lots of questions once I get started.
Chuck
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Strange - I looked at the link with another browser where I was not logged on and I could still see it. Maybe I was still messing with the gallery at the time.
interesting enough, going to this connection worked just fine. So all good. Keep up the good work!
cheers
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I just clicked on your link and it came up fine. Drawings look good. Are you planning to draw some closeups of assemblies, like controls, ailerons, landing gear, etc?
Yes that is the plan. I have been trying to get the general layout complete and had been focusing on finishing the wings and stuff like that but I think I about at the point where I can start working on the details. I was trying to find an existing 3D model of a VW Engine to that I could hack on to show a 1/2 but was not to successful at that.
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Did you try here..? https://grabcad.com/library/vw-engine-solid-engine-with-components-1 (https://grabcad.com/library/vw-engine-solid-engine-with-components-1)
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Actually I did pull that but found the design difficult to modify because of the format. Working with it but slow going. I may just use it as a reference and redraw it in fusion 360 format.
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(https://media.giphy.com/media/ehz3LfVj7NvpY8jYUY/giphy.gif)
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Actually I did pull that but found the design difficult to modify because of the format. Working with it but slow going. I may just use it as a reference and redraw it in fusion 360 format.
I came across that grabcad one also, and hacked together the following (see screenshot). It was never intended to be accurate, but only a "representative visual mass" and so has a few holes...it is a difficult model to modify. If you'd like me to post it here in STEP format, let me know, I'd be happy to do so. If someone had some really good closeup photos of the modifications to the head area, I might could model those up and contribute it here to the forums, but its difficult scouring the internet for the right reference photos.
-Tom Kyler
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For those of you wondering, "why would this be hard if the engine is drawn out already?" Lets take a step back on make note of a lot of the items on Grab Cad or other similar sites that have such items posted.
Very often the item is posted as one complete unit (i.e.- the heads, jugs or case) is all one solid piece. Often these are called dumb solid, or sand solid, and I am sure there is many other types of names for this.
Thus, if you want separate head, or different colored Jug or case, one has to separate the parts (often not easy as stated) and turn them into separate parts, then create a new assembly from these. Again, this often takes a great deal of time.
And even worse, often we (designers) can dive into a provided "dumb solid" only to find out that it is not dimensional correct for some unexplained reason. i.e. The case is 1" longer than what it really is in the real world. This perhaps is the most difficult thing to correct. Very often not worth it, as changing one area effects so many other areas. Sometimes these areas are more subtle but still wrong, such as angled motor mount location that is suppose to be parallel to another, only to find out it is off 1-2 degrees. Easier to fix but still takes time.
it is a whole new world, to take a incorrect drawing, and make it correct.
But sometimes perfection can be created. ;) actually this is off slightly.
cheers
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That's really good looking work Scott. My video card hurts just looking at it!
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I came across that grabcad one also, and hacked together the following (see screenshot). It was never intended to be accurate, but only a "representative visual mass" and so has a few holes...it is a difficult model to modify. If you'd like me to post it here in STEP format, let me know, I'd be happy to do so. If someone had some really good closeup photos of the modifications to the head area, I might could model those up and contribute it here to the forums, but its difficult scouring the internet for the right reference photos.
-Tom Kyler
I would love to have a copy of your step file - Fusion 360 does not usually have any issues with that.
BTW, for anyone that is interested I added a link in my buildlog to many of my CAD DFX files I have used for CNC and Laser cutting parts especially wing parts
http://buildlog.virtualmakerspace.com/build-intro-info/ (http://buildlog.virtualmakerspace.com/build-intro-info/) - feel free to help your self. :) (http://buildlog.virtualmakerspace.com/2019/07/11/cad-file-share-created/)
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So over my head but really enjoying this thread!
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So over my head but really enjoying this thread!
Pete, did you know you can down load for free, the student premium version of SolidWorks from the EAA website. Just by being a member of EAA.
Perhaps one of the greatest benie's of being a member. By doing so, you quickly can gain knowledge about the many different formats of files being talked about here. While it may take awhile to be proficient in any CAD program, it does not take long to understand the various file formats.
I have to warn all though- once you enter the world of CAD drawing, you will hardly ever look at a shape, no matter if it ranges from a chair to a aircraft, the same again. If not from the redesign aspect, from the actual "how it was made" side of things.
I am a teacher/educator at SolidWorks University at EAA and every year we get 40-50 folks each day started down this path at Airventure. It is a fun thing to see them create parts for the very first time.
A link that should get you in the right direction is
https://www.eaa.org/eaa/eaa-membership/eaa-member-benefits/solidworks-resource-center/solidworks-university
enjoy!
Scott
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Pete, did you know you can down load for free, the student premium version of SolidWorks from the EAA website. Just by being a member of EAA.
Perhaps one of the greatest benie's of being a member. By doing so, you quickly can gain knowledge about the many different formats of files being talked about here. While it may take awhile to be proficient in any CAD program, it does not take long to understand the various file formats.
I have to warn all though- once you enter the world of CAD drawing, you will hardly ever look at a shape, no matter if it ranges from a chair to a aircraft, the same again. If not from the redesign aspect, from the actual "how it was made" side of things.
I am a teacher/educator at SolidWorks University at EAA and every year we get 40-50 folks each day started down this path at Airventure. It is a fun thing to see them create parts for the very first time.
A link that should get you in the right direction is
https://www.eaa.org/eaa/eaa-membership/eaa-member-benefits/solidworks-resource-center/solidworks-university
enjoy!
Scott
Pete, did you know you can down load for free, the student premium version of SolidWorks from the EAA website. Just by being a member of EAA.
Perhaps one of the greatest benie's of being a member. By doing so, you quickly can gain knowledge about the many different formats of files being talked about here. While it may take awhile to be proficient in any CAD program, it does not take long to understand the various file formats.
I have to warn all though- once you enter the world of CAD drawing, you will hardly ever look at a shape, no matter if it ranges from a chair to a aircraft, the same again. If not from the redesign aspect, from the actual "how it was made" side of things.
I am a teacher/educator at SolidWorks University at EAA and every year we get 40-50 folks each day started down this path at Airventure. It is a fun thing to see them create parts for the very first time.
A link that should get you in the right direction is
https://www.eaa.org/eaa/eaa-membership/eaa-member-benefits/solidworks-resource-center/solidworks-university
enjoy!
Scott
Awesome! I've been an EAA member for many years. Thanks for the link!
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I would love to have a copy of your step file - Fusion 360 does not usually have any issues with that.
See link below. Please Let me know when you have it, so that I can remove it.
https://www.dropbox.com/s/4kseso290cejf9s/HalfVW3D_Model.stp?dl=0
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that is a pretty big file, outside 1000m limits for this solidworks set up
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Concur Scott. Tried to pare it down a little bit and defeature it, but didn't have any luck with defeaturing any further without signficant effort. Unsure Fusion 360s limits in this regard. Since I only used it in a very generic 'mass' capacity, it worked for my purposes. Hopefully it will suit kalazzerx purposes.
-TomK
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I have a copy of it but I have also been working on my own. I found a decent VW model I have been adapting - the full block version is about done (90% solution) and from that, I want to create a cut block version. Not sure how large my export would be but size in not an issue for me to share - I run my own nextcloud server so have lots of share capacity. Will probably make it available shortly. Thanks for sharing.
Visual Share - Autodesk 3D viewer of engine (https://a360.co/2maxP6R)