Re: Traditional Table of offsets, Ft, Inch, eigths – importing to delfship

[Peter Edmonds]

Here is another approach.

You will need to key in the offsets in some form at some stage, I expect.

I suggest you set up an Excel worksheet, to accept 3 cells (feet, inches, eighths) for each dimension. You can then covert these to another cell that takes sum of (feet * 304.8 + inches * 25.4 + eights * 3.175).

You may wish to copy these mm offsets to other worksheets, arranging to suit your move into DS; saving the sheet as text tab delimited.

You may also want to do another transformation to go from ship size to your model size by dividing all ship offsets by scale factor (48 or its reciprocal in your case; change the factor if required for another scale).

If you are going to build a block or similar model, you may not get value by going through a lines manipulation program. You could just mark out waterlines on planks, with or without cutting to profile before joining the planks into blocks. Sortware would, of course be advantageous if your target plank thicknesses don’t match the scaled waterline spacings.

I won’t go into a discourse here on hull model making.l However, if you are looking at using your text file(s) from Excel as software input, the smart thing to do is lay out your “output” sheet(s) of Excel to suit the input requirements. See current free DELFTship manual (3.2, 2006. 07 section 6.3 Table of Offsets pp 19 – 22)

We await developments.