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Recent content by Kapitan

  1. Kapitan

    Freestyle 'Curve on plane' function missing in V5R20

    I doubt if the "Curve on Plane" function has been deleted, the terminology may have been changed though. If a surface has infinite maximum & minimum radii of curvature (or zero curvature in any direction) — then effectively it is a plane. So, try selecting the Surface option to construct a...
  2. Kapitan

    How to create points from Excel data (designtable) to make CAM profile

    I assume the method of importing points from an Excel file into V5 is still available; search the online Documentation for "Creating Elements from an External File" — it gives an explanation of how to create points, curves and simple surfaces from a file of X,Y & Z data. Search the Help...
  3. Kapitan

    Engineering Christmas Toys

    Meccano set, 1950s — click the picture for the link to the history of Meccano In the early 1950s I was given my first Meccano set — and I'd be pushed to think of a better present that fits the requirement for an "Engineering Christmas Toy" than Meccano. It was first sold (here) in England, over...
  4. Kapitan

    Catia V5 training

    Nearly 27 years ago I had a full week (about 50 hours) of one-to-one Catia training on Version 1; it was provided by a IBM senior software engineer who knew Catia inside out. I can't think of a better way of learning Catia — I was very fortunate. During the next few months this IBM engineer used...
  5. Kapitan

    Find circle radius & circle center in 3D from (3) XYZ pts

    I've modified my Basic subroutine to deal with the intersection point case — by a different method, and what I think is far simpler than before. It's all done in 3D using direction cosines: it uses no auxiliary axis system, no transform matrix, no rotations, and no plane equations. The centre...
  6. Kapitan

    Find circle radius & circle center in 3D from (3) XYZ pts

    An excellent solution, Doug — and many thanks for taking the time to update my old BASIC routine.
  7. Kapitan

    Find circle radius & circle center in 3D from (3) XYZ pts

    Finding the centre and radius of the circumscribed circle of a triangle (ABC) is something I first did in the mid-1980s — in BASIC, I'm retired now but I've still got the notes written at the time. The normal form of the plane equation wasn't used — just the direction cosines of the axis system...
  8. Kapitan

    Volute in Catia V5 ?!?!?!?!

    Snail Shell surface Well, thanks for the suggestion, ferdo - and I've certainly got plenty of time - but I don't have access to a V5 terminal anymore, as unfortunateIy I'm now in my late 60s - and retired. So, I'm sorry, I'd like to contribute something reasonably constructive to the thread...
  9. Kapitan

    Creating a curve by equation

    It seems to me that this particular Law method of making the involute of a circle is unnecessarily complicated - and not the best way of constructing an involute (in this case, of a circle) in V5. What appears to be happening is that two component plane curves - x(t) and y(t), shown as red and...
  10. Kapitan

    Creating a curve by equation

    Constructing a curve from an equation is something I do using the Excel file method - it's very fast, and it's easy to edit the code and re-run it. In the Help documentation a search for "Creating Elements from an External File" describes the process. An in-depth knowledge of VB is not really...
  11. Kapitan

    Helix Command

    The spring can be considered as the trace, or locus, of a moving point — therefore it has a starting point — and that's the first thing Catia asks for. So, it is at the radius distance away from the centreline, and it's going to wind along and around the line. The Pitch should be...
  12. Kapitan

    Catia v5

    I also agree with Ferdo; this isn't really the place to come for basic training. I'd recommend you talk first to your manager or whoever you report to - and ask to go on a proper V5 training course. Has your employer invested in Catia; but not budgeted for training the people who are going to...
  13. Kapitan

    Surfacing - Two Guides and Profile - Air Foil

    An interesting case, and not uncommon - it's the last bit that's the problem. There is very little to work with: 2 planar curves that appear to be concatenations of circular arcs. The finished part looks as though it is one half of a neutral airfoil. It's probably safe to assume that a section...
  14. Kapitan

    Radial Sweep?

    As is often the case there's more than one way to make this surface. I've tried some of them and here's the results. Apart from one, they looked identical but when analized there are small differences in area. If the first one is considered as having unit area then the others are: (1) Blend -...
  15. Kapitan

    Export of Point Data to Excel

    Which Thread number gave you the information, I've a got a job coming up where that process (point data into Excel) would be most useful.
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