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Re: [PSUBS-MAILIST] Hydrodynamic Hatch Viewport Arrangement
Brent - are those images just shaded with textures applied, or fully
rendered (raytraced)? Looks good.
One caveat - electroless nickel plating will emphasize every scratch and
machining mark on your parts. I found this out the hard way after
getting some very expensive parts back plated, with tool marks
prominently displayed in all their glory. If you intend any sort of
shiny plating or anodizing which is not a dull, lifeless finish, you
need to either specify a very fine surface finish for the machining
(expensive), media blast the part to create a slightly rough but
homogeneous surface (best option, IMO) or control the appearance of tool
marks with a multidirectional or specified directional lay so that the
marks are still there, but look intentional. Paint or powder coat is
not so bad as it can be applied in a thicker layer. The only appearance
problems I have had with powder coating (electrostatic process) is with
castings that have small voids in them.
Incidentally, cylindrical parts machined with a diamond knurl and
subsequently electroless nickel plated look fantastic.
-Sean
Brent Hartwig wrote:
Greetings Frank, Didn't you say it's your birthday? I was able to
work up a CAD model of a hatch viewport arrangement, that would be
pretty hydrodynamic and not a entanglement hazard. I made the
retaining ring to be inset in the viewport seat. Also I nickel plated
your hatch for you while you were sleeping. Lets just call it cabin
fever, and leave it at that. ;)'
Here is my Frappr link, to seven model rendering pictures of your
hatch with a conical viewport.
http://www.frappr.com/?a=viewphoto&id=4001713&pid=9062924
*Regards,*
*Brent Hartwig*
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