Robert Holme

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Viewing 15 posts - 151 through 165 (of 179 total)
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  • in reply to: can someone help me with modeling my own design? #37358
    AvatarRobert Holme
    Participant

    Hi Guys,

    I’ve had a bit of a play with this as well, like Jurgen I opted for a bulbous bow but The stern shape suggested to me single screw.

    Be that as it may my biggest concern with my own and the others is stability, ( G>M). Too much top hamper. Perhaps a tumble home may suffice? IMHO more beam is needed, probably best achieved by a less fine forepart i.e. the vessel needs to carry the 10m beam further forward, draft is an option but may be restricted by the ports the vessel needs to enter.

    Just my 2 Bobs worth and worth exactly what you paid for them.

    Best Regards
    Bob

    in reply to: Problem with 6.27.259 #37351
    AvatarRobert Holme
    Participant

    Interesting…………………..Once more DS froze on opening.

    I followed previous advise and had “Check for updates” set to never…………………..However………………….

    Guess what…………………… I disabled my internet connection and bingo………….. the program loads immediately.

    This is odd to say the least.

    For my fellow freezers at least now I appear to have stumbled on a work around to defrost the startup 🙂

    Best Regards
    Bob

    in reply to: An attempt to draw a J Class #37347
    AvatarRobert Holme
    Participant

    Attached is a Freebee I found on the net of replica Intrepid.

    Best Regards
    Bob

    in reply to: An attempt to draw a J Class #37339
    AvatarRobert Holme
    Participant

    Hi James and Jurgen,

    My approach to this is labourious but works. Take measurements with a ruler and transfer the body plan into cad.. From there it is a fairly easy process to create a bmp/jpg. The attachement was done from an AO and an A3 blueprint.

    Hope this helps.

    Best Regards
    Bob

    Attachments:
    in reply to: Frustrated! Cannot modify background image! #37323
    AvatarRobert Holme
    Participant

    Glad you got it sorted.

    I have not been using DS very long and yes IMHO it’s not an intuitive program but having said that once you get into it it produces really great hulls…………..far and away better than what my CAD program can produce lofting station lines.

    I figured it was a French warboat but it’s not listed in the Wiki of French ship names. With that hull shape it had to be turn of the 19-20 century design.

    Best Regards
    Bob

    in reply to: Frustrated! Cannot modify background image! #37320
    AvatarRobert Holme
    Participant

    I have no idea why the file I attached will not open using Delftship it was made in v6.27.259 64 bit.

    Sorry to use terms you do not understand. LBP is length between perpendiculars. From what I can see of your profile and plan the vessel looks to have a cruiser stern and a sloped back, (negatively raked), bow.

    I have edited your image to show what I mean.

    May I suggest you do this attached tutorial before you go on and most of your queries should be answered.

    Best Regards
    Bob

    in reply to: Frustrated! Cannot modify background image! #37316
    AvatarRobert Holme
    Participant

    Not far off

    1. Start new model and put in minimum basic parameters i.e:

    LBP and not as you have LOA.
    Full Beam
    Designed or guesstimate draft.

    At the start to keep things easy I leave longtitudinals at 6 and only 3 verticals.

    Now up pops this orrible looking bath tub!

    Select profile view.

    Right click on the screen and load the background image
    Right Click on the image and select origin I usually place the aft perpendicular on the 0 and the base on the base line. The position longtitudinally is the important one.
    When your happy (it sometimes more than one attempt to set the origin). Right click on the image and click on set X and Y the same.
    Right click on the image again and select set scale. left click on the image at the top of the forward perpendicular and note the readings. click inside the box and change the x reading to match the input parameter.
    Your image should now be the same length as the bathtub.

    Now bring the top row of bathtub points down to the top of your image.
    Next bring the middle row down to somewhere between the top and the base.
    Lastly adjust the points on the base row to match the image.

    You should now have a rough profile.

    Place and set the origin of your body plan.

    NB if you are using separate images for profile, plan and bodyplan ensure they are all drawn to the same scale before loading them because setting the scale of the 1st image loaded will determine the scale of any other images loaded.

    Hope that helps.

    I took a guess and said 100M LBP and ended up with this after loading your image 2.

    Best Regards
    Bob

    Attachments:
    in reply to: Problem with 6.27.259 #37273
    AvatarRobert Holme
    Participant

    Help,

    Suddenly my Delftship free 6.27.259 will not open!!!

    In desperation I cleaned my computer and registry then downloaded 6.22.253. It installed OK but will not open and freezes on the delfship opening logo, as did 6.27.259.

    I also tried running as administrator same problem.

    My operating system is Windows 7 64bit.

    What am I doing wrong?

    Best Regards
    Bob

    in reply to: Best way to model a flat hull bottom? #37239
    AvatarRobert Holme
    Participant

    Hi Andy,

    I’m pretty new at this too!

    I think you need to move your station points of the midships section. Also, if station points have different z co-ordinates but the same y co-ordinates they will make a vertical straight line. Similarly if station points have the same z co-ordinates but different y co-ordinates they will make a horizontal straight line. The proximity of the lowest z point and the most outboard y point will determine the corner radius of the station.

    I hope this makes sense and you find it useful.

    Best Regards
    Bob

    in reply to: Counter Stern #37228
    AvatarRobert Holme
    Participant

    Thanks Jurgen,

    what do we have here, amongst the many mistakes and learners fumbles?

    Best Regards
    Bob

    in reply to: Counter Stern #37214
    AvatarRobert Holme
    Participant

    Happy New Year All

    Thanks Jurgen

    Finished…………!!??

    Best Regards
    Bob

    Attachments:
    in reply to: Counter Stern #37186
    AvatarRobert Holme
    Participant

    Jurgen,

    In the freezer it goes but not without a huge thank you for your help and inspiration.

    Merry Christmas and Happy New Year to you and your family.

    Kind Regards
    Bob

    in reply to: BB Modeling #37171
    AvatarRobert Holme
    Participant

    Hi,

    I’m new at this as well and yes it’s not, (well for me), intuitive; but if you have a look in my counter stern thread you will find some hints and tutorials from a fellow member Jurgen. These are invaluable so have a look, have a think and have a go the worst that can happen is bytes and bits in the wrong place.

    Like all technical software the amount of effort you put in is directly related to the quality of the result.

    Best Regards
    Bob

    in reply to: Counter Stern #37161
    AvatarRobert Holme
    Participant

    Hi Jurgen,

    The background image is a jpg of my cad 2d lines plan drawing which I made from the bodyplan drawing and some basic measurements from the profile drawing.

    It was not faired just used splines by fit point after measuring the bodyplan. So be warned pencil and paper is not quite accurate like CAD or delfship.

    Best Regards
    Bob

    in reply to: Counter Stern #37159
    AvatarRobert Holme
    Participant

    I had no problem with original file download

    Best Regards
    Bob

Viewing 15 posts - 151 through 165 (of 179 total)