Jump to content

VWX

Member
  • Posts

    13
  • Joined

  • Last visited

Reputation

0 Neutral
  1. quote: Originally posted by islandmon: With a little effort the precise functions can be modelled in Excel and exported via vectorscript text. quote: It will be possible to find out the function, but the blade has four quite different cylindrical cross sections. It will be supposed not to be easy to find out the functions.Quote from my friend.
  2. quote: Originally posted by Chris Manus: If you have mathematica 5 you can export your equations in 3D dxf or STL ?- then import and assemble in VW- Upon trial,Forget 3D-Dxf importing..HTH My friend doesn't have Mathematica 5. There isn't mathematical equation for picture, because the shape of the propeller blade is acc. to practice and it has been drawn on 2D drawing. [ 11-16-2005, 02:06 PM: Message edited by: MS ]
  3. quote: My orignal problem was to create a 3D model from a propeller blade shown on a attached drawing. I know the cross sections along cylindrical cuttings and distances from center R2 ... R5. But these cuttings are drawn straightend on the plane.Quote from friend. Hopefully this helps and shows, what the problem is.
  4. quote: Originally posted by islandmon: Each of those cross sections should have exactly the same number of segments & vertices before you convert them to NURBS & Lofts... getting the correct dihedral-pitch is a bit tricky. Also the stem will need to be modeled separately from the blades. quote: Thank you all these hints are with then most important how to prepare nurbs. And then the problem is like comments above.Quote from my friend. [ 11-08-2005, 03:10 PM: Message edited by: MS ]
  5. quote: Originally posted by grant_PD: I think I understand the problem. You'll want to make each of those cross sections into nurbs and them place them at the correct height and rotation at their cross section. You'll then want to loft curves to get them all to make the correct shape. quote: You are right, that's my problem and how to place them at the right position without many calculations. It is not difficulty but how to avoid a huge number trivial calculations.Quote from my friend.
  6. quote: Originally posted by propstuff: I don't understand the request. Propellers don't generally have circular cross-sections, and a cylinder is not generally thought of a s a cross-section. Can you explain more what you have and you're trying to do? quote: I have cross sections of the profile of the propeller blade so that we think to cut the blade with radius R1 we get a cross section area on this radius. If the center line of the blade is situated on z-axis then the other edge will be on -40? and the other on +35?. I have now this section area on the flat plane so 5? is corresponding 2*π*R1*5?/360?[mm]. My problem is to bend the area once again back to radius R1.Hopefully this helps? It's quote from my friend. [ 11-08-2005, 03:08 PM: Message edited by: MS ]
  7. My friend has a problem: quote: I?m working to make a 3D model of a propeller blade. I have an old 2D dxf file from the blade, where the cylindrical cross-sections with right scale and shape are on plane. Now my problem is how to exploit these cross-sections by bending individual section to equivalent radius.VectorWorks version is 11.5.1. [ 11-07-2005, 11:49 AM: Message edited by: MS ]
  8. quote: Originally posted by propstuff: Your object needs to be a Surface (eg plolyline) in order to take a hatch. You might find it's imported as a group of individual lines. My 2D dxf object is lines and arcs. I can draw similar 2D object using simply line tool (+fillet +camfer) and I can hatch that object. I don't see any difference between my new 2D object and 2D dxf object except that I can't hatch 2D dxf object. [ 10-15-2005, 05:51 PM: Message edited by: MS ]
  9. I have imported dxf file into VectorWorks Mechanical 11.5.1. My problem is that I can't hatch object. I doesn't hatch my object at all. [ 10-15-2005, 04:00 PM: Message edited by: MS ]
  10. Thanks for your help. I solved problem.
  11. How to make smaller Surface Texture Symbol? Symbol size is too big. I am using VectorWorks Mechanical symbol library.
  12. I looking for CAD software for Mac. My customer would like to do his CAD work using his current Mac. I have noticed, that VectorWorks Mechanical might be suitable software. Basic info: Mac: Power Mac Cube G4 466MHz + ATI RADEON 32MB + 1.12GB RAM + Mac OS X 10.4.x. Work: Mechanical 2D turbine and gear designing. No 3D! CAD software needs to be AutoCAD compatible. Questions: 1. My customer's Mac is enough powerful for VectorWorks Mechanical 2D work? 2. VectorWorks Mechanical includes standard mechanical symbol (ISO compatible) library? 3. VectorWorks Mechanical is AutoCAD compatible? VectorWorks Mechanical can read latest AutoCAD 2D DWG/DXF files? 4. VectorWorks Mechanical includes same features than AutoCAD?
×
×
  • Create New...