Victoria, Texas
CAD Drawing Images
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Design Study - 24ft cat
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Design study 16 c
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Client design 22 ft cat
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From CAD drawing to real wood
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Nov 2008
Will try to answer a few of your questions before I go to work on the boat this morning.
It is 22' long with a beam of @ 8' when finished, the beam can vary a little depending
on how the gunnel gets done and that depends on my mood and / or available materials.
The wood is MDO ( medium density overlay ) or sign board as it's called because a lot
of sign builders use it. MDO is nice because it has a paper like covering on one or both sides
that takes paint,polyester resin,epoxy or almost any coating you want and starts out with a reasonably
smooth finish ( time saver ) and is SUPPOSED to measure 3/4", 1/2" ( .75, .50 ), this batch of 3/4"
averaged .7317 inches. MDO also is glued together with a very good WATER PROOF glue and this batch was
almost void free, it costs at this time $60.00 a sheet. The cut time was 1:31:45 for the machine, a process
that still amazes me while I watch, the machine is computer operated and does malfunction. After doing my best
to set it up for my first cut @ 5 minutes into the first sheet the electric company saw fit to drop a power surge on the process!
Which means the computer has NO brains and I had to re-zero everything. I have 19 hours time worked since starting to cut
but things go slower now with each frame needing to be beveled and getting whatever glued onto that needs to be. The only change to the
Power Cat shape is the smoothing of the bow curve, there are two reasons for this, (1) it is easier to bend ply over this shape
and (2) this boat will be pushed by a 150 hp outboard jet and resistance is a little less, beside that my friend who I'm building
it for likes the look. I am shooting for @ 1000 lbs. for weight but it may be lighter as I found a way to save 150 lbs.
by using a nida-core deck. If anybody wants to build one I will be glad to cut one out for you, I could write a lot more
but I'll send pics and descriptions as I go, hope this answers a few questions.......David
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Dec 2008
I just finished reassembling the boat after applying two coats of MAS epoxy to all of the frame pieces.
Finish looks rough and it is, I sanded with 80 grit for a rougher surface and a better bond, my arms
feel like they could fall off after all the sanding. I will start cutting out skins for hull tomorrow
and should be putting them together next week if nothing gets in the way. If anyone would like to do a
high performance modification to an existing Power Cat I would be glad to do the drawings and CAD files
on a as time permits basis. I can either provide files to cut from or patterns cut from a
lightweight material to use as masters and am capable of cutting anything but metal. I wouldn't mind
cutting out the pieces if the shapes and material can be done on the ShopBot.
.....David
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Returned from fishing yesterday and had some time on my hands last night
so I poped open a cool one and let my mind wander using the
wood one to start with. Not a finished plan but just fun, at this age dreaming of
driving something fast is almost as much fun as you know what......
...David
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Jan 2009 more work on the 22' cat
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3 Feb 2009
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23 Feb 2009
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17 March 2009
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Now the glass over wood.. awww the smell of resin !!!
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A little time off too catch a few along the Texas coast....
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Looking Classy 'n Glass
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Nov 09 Now with a prop and LWP..
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