robin szemeti

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  • in reply to: Importing Lines Plans #35682
    robin szemeti
    Participant

    Firstly, please understand that markers are just that, visual markers to serve as a reference, and nothing more.

    If the scale is wrong, I suggest you try importing them as a IGES file, as that usually comes out the right size, where as .dxf can sometimes end up with inch/metric conversion issues.

    You might be better off trying to develop a table of offsets from the lines plans … and import that. Please note, unless you buy Delft you will not be able to export your finished model back into a format such as IGES.

    You could also look at FreeShip Plus, which is basically the same software, with a nicer user interface. I don’t thik the author of Delft is currently active on the project any more as he does not answer emails, so you may be better off with FreeShip or FreeShip plus anyway, as they still have people to answer quaestions, and it is basically the exact same software.

    in reply to: Please somebody help me. Simple question. #35617
    robin szemeti
    Participant

    load the 152m x 23m ship, then use Transform->scale

    enter 0.592 for longidutanal scale
    enter 0.869 for transverse scale
    enter some number you like for vertical scale … you will have to experiment here, becasue you are not using the same scale for all axes,

    now you have the correct sized model, maybe you get the correct dynamics

    in reply to: Offsets import/export #35612
    robin szemeti
    Participant

    So, I played some more … if you take that hull (solo_chine_original, previous post), look at the “unfold to 2D” plates … now, rotate the hull 180 degrees in the vertical axis … unfold again, and the plates are completely different, rotate another 180 degrees in the vertical axis, and they go back to the first version.

    What is certain is that rotating the hull in the vertical axis should NOT alter the shape of any of the plates.

    I do not know if any version is correct, but the first version before rotation looks more likely to make something about the correct shape, after rotation, the unfolded shape is very wrong … Something is broken somewhere, I really only need this to produce some DXF files for my CNC router to cut the hull … I need to be certain that the output is correct before cutting ~£800 worth of wood!

    in reply to: Output x/y position of a knuckle line at a given station #35608
    robin szemeti
    Participant

    I just tried importing this offset table into DELFTship, and I get “numeric error” and no model is created.

    it looks a perfect format for what I want to do, I could easily create a table like this for my hull, but I can’t get DELFTship to open it …

    in reply to: Offsets import/export #35607
    robin szemeti
    Participant

    OK, I’m even more confused now … the file on the previous message, produces very incorrect plate development that will never make the hull as drawn …

    The file attached to this message is the same hull, but mirrored, and produces correct plate development …

Viewing 5 posts - 1 through 5 (of 5 total)