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[Alistair]

DOs and DONTs summarised:

DOs
-Do use black, well-defined lines on one side only of a white
A4 size page (21 x 29.7cm), with margins of at least 2.0cm
on the left-hand side, 2.0cm on the top, 1.5cm on the right
and 1.0cm on the bottom, so we can make good-quality
copies.

-Do number your drawing pages in order, at the top of each
page (but below the margin) in the middle. For instance, if
you have two drawing pages, they should be numbered 1
of 2 and 2 of 2 (ie 1/2 and 2/2).

-Do use reference numbers or letters, which must be at
least 0.3cm high, to relate parts of your drawings to parts
of your written description.

-Do join any reference numbers or letters to the
corresponding feature using a clear, continuous line.

-Do produce extra drawings to show other versions of your
invention.

DON’Ts
-Don’t use a coloured or lined sheet.

-Don’t use coloured ink, pencil or greyscale.

-Don’t draw a frame to show the margins.

-Don’t put anything in the margins or use borders
or frames.

-Don’t write descriptive text on the drawings.

-Don’t use too much shading.

-Don’t fold your drawings.

-Don’t create ‘engineering-type’ drawings showing

construction lines, materials or dimensions.


Would you consider this: http://i240.photobucket.com/albums/ff29/crowning73/greyorblack.jpg greyscale?

[JimIvey]

Would you consider this: http://i240.photobucket.com/albums/ff29/crowning73/greyorblack.jpg greyscale?

Yes.  Of course, it's not my opinion that matters.

FWIW, this one is black and white.

I tried really pushing the contrast in the original photo using gimp.  Here's the result.

Regards.

[Alistair]

Thank you Jim. I was kidding myself into considering that not grey, but many would probably disagree..
Not sure what's wrong with grey provided you can still make good copies, but I'll gladly look into that gimp I hadn't even heard of before your post. Thanks.

[JimIvey]

Here's a discussion of creating (simulating) line drawings from photographs.

It includes a link to the technique I use.

I've become a bit more sophisticated with drawings since then.  Now, I use OpenOffice.org Draw (you can probably use Visio if you have extra cash lying around, or even gimp).  I include the photo/image in a locked layer and then trace over it in a upper layer.  I think I put 5 minutes in the black drawing I posted.  But, when pressed for time, the gimp sketch effect works reasonably well.

Regards.