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Type: Posts; User: lathropdad

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  1. Replies
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    I bought a Lincoln Precissio TIG 225 some years...

    I bought a Lincoln Precissio TIG 225 some years ago. I have owned a Miller Dial Arc 250 HF and a Miller 300 APB years ago. The Lincoln is the least expensive machine I have owned and it welds the...
  2. Thread: Kit advice

    by lathropdad
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    7,278

    You might look at the Bearhawk line of airplanes....

    You might look at the Bearhawk line of airplanes. You can scratch build from plans or buy kits. Or do some combination of both. There is a 4 place, a Patrol which is 2 place tamdom (think Super...
  3. Thread: Simulation

    by lathropdad
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    7,040

    Thanks for the information. I was asked about...

    Thanks for the information. I was asked about simulation feature in the EAA Solid Works version. I happen to have a subscription to SW premium and I did not know what the differences were between...
  4. Thread: Simulation

    by lathropdad
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    7,040

    How does that differ from the simulation that...

    How does that differ from the simulation that comes with the standard version of SW? Will it do a analysis of a solid part or a weldment?
  5. Thread: Simulation

    by lathropdad
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    7,040

    Simulation

    Does the Simulation Add In package work with the EAA version of Solidworks?
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    Thanks for the suggestion. I have not tried that...

    Thanks for the suggestion. I have not tried that search.
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    I may be stuck following your suggestion. That...

    I may be stuck following your suggestion. That is not an issue to scale a set of plans.

    Do you have a suggestion for a source for the plans?

    Steve
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    Fokker D7 1/2 scale

    Many years ago, there were a group of builders in the Oshkosh/lower Wisconsin area who started building scales replicas of the Fokker D7. I have seen at least 2 fuselages, on gears, together in a...
  9. I find you approach to this problem interesting. ...

    I find you approach to this problem interesting. I did the same type mounting but I started with the tube and the washer welded together. After welding the tube and washer, I trued the mounting...
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    You can get step drills for 1/2 inch maximum...

    You can get step drills for 1/2 inch maximum diameter and 3/4 inch maximum diameter. I would suggest that you start with the 1/2 inch and then go to the 3/4 size for holes larger than 1/2 inch.
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    I may be mistaken but SolidWorks Student version...

    I may be mistaken but SolidWorks Student version (the version that a EAA member can down load) will do static simulation. This is FEA modeling. I am not a trained engineer but I have made very good...
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    Given that a subscription to Solid Works is close...

    Given that a subscription to Solid Works is close to $5000 and something like $2500 per year, the EAA offering is a bargain, even with the inconvenience of having to be connected the web to use it.
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    I expect that Solid Works will work on Windows...

    I expect that Solid Works will work on Windows 10.

    I have had a subscription to Solid Works for many years. Solid Works recommended customers stay with Windows 7. I have not seen any...
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    I use weldments quite often. I started my...

    I use weldments quite often.

    I started my fuselage drawing with a 3D sketch. I then insert structural elements.

    You will find that you have to build files for all the structural elements you...
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    I use a fine wire wheel on a bench grinder to...

    I use a fine wire wheel on a bench grinder to clean the areas being welded with TIG. Partly I do this to de-burr the ends of the tubes.
    Some of the 4130 I have received has a real scale issue...
  16. Just open the DXF file and convert to SW objects....

    Just open the DXF file and convert to SW objects.

    Once in SW, you need to fix some points or distances in the imported drawing. A you open the drawing, all the lines and dots will be blue....
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    Here is another SW weldment drawing. I did this...

    Here is another SW weldment drawing. I did this from the fuselage drawings.
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    Think about how you are going to build your...

    Think about how you are going to build your fuselage. You will want to transfer measurements from you drawing to you building fixture or table easily.
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    I have drawn weldments may with curved tubes. ...

    I have drawn weldments may with curved tubes. Try redoing the curves with a radius or ellipse. As you are drawing, think about what you can build. I have not tried using a spline curve in a...
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    Absolutely can"t argue with handy. And I like...

    Absolutely can"t argue with handy. And I like the idea of an app. to do the job. I have a digital level, it is brilliant and way more than accurate enough for many jobs.
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    I don't know how accurate you need a level to be....

    I don't know how accurate you need a level to be.

    My back ground is in formula car racing. When we level the alignment platforms, we commonly use a transit level and a machinist scale. With the...
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    I have used SW on laptops for years. My laptops...

    I have used SW on laptops for years. My laptops have been Dell Inspiron and Latitude models. You might be able to get a 64 bit machine as a refurbished unit from Dell for a very reasonable price. ...
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    I use the weldment feature frequently and found...

    I use the weldment feature frequently and found it very useful. I have modeled the Bearhawk 4 place.

    You start with a 3D sketch of your fuselage. You can do a single drawing or several drawings...
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    The Weldment features will be there. But you...

    The Weldment features will be there. But you have to add the tube sizes you are using.

    The weldment feature is great for doing tube structures and you can make accurate templates of the mitered...
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    I flew a J3 Cub for several years. I hand...

    I flew a J3 Cub for several years. I hand propped that plane by standing in front of the right side wheel. I could reach in and control the mags and throttle. I propped the engine from the back...
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