Building a Traditional Wooden Boat #3: Building the Molds

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Blog entry by MattD posted 06-20-2009 10:38 PM 15119 reads 2 times favorited 5 comments Add to Favorites Watch
« Part 2: Lofting Part 3 of Building a Traditional Wooden Boat series Part 4: Strongback »

Finished the molds today! The molds create the form upon which the boat will be built. There are 5 mold forms for this boat.

The shape of the molds are taken right from the lofting drawing. Picking Up refers to techniques of transferring shapes on the lofting to boards so that the shapes can be cut out. To pick up the mold shapes, I ground off half of the heads of a few dozen nails so that they would lay flat exactly on the lines in the drawing that I wanted to transfer. I then placed boards over the nails and lightly hammered down until the nails stuck into the wood. The boards are flipped over and a batten is used to draw a curve along the impressions left by the nail heads. The molds are then cut out on a bandsaw (both sides at the same time). The 2 sides of the mold are then compared to the lofting for any fine tuning. They are then nailed in place on the lofting and tied together with cross-spalls and cleats.

Next is building the strongback and placing the molds.

Mold Materials List:

  • (2) 1×8x12, Lowes, $24
  • (2) 1×6x12, Lowes, $12
  • Misc nails and scrap lumber

Project Materials Summary:

  • Plans and Book: $60
  • Lofting Supplies: $47.88
  • Mold Supplies: $36

- Total Project Expenses so far: $143.88

Labor Hours Summary:

  • 5/29/09 – 6/8/09: Lofting – 12 Hours
  • 6/14/09 – 6/20/09: Building Molds: 5 Hours

- Total Project Labor Hours so far: 17 Hours

-- Matt - Syracuse, NY

5 comments so far

View patron's profile


13702 posts in 4075 days

#1 posted 06-20-2009 11:35 PM

we’re looking good , matt .
thanks for showing us the steps in this and the costs .
im going to favorite this so i can enjoy it with you .

hi jim , i know your here close !

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

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Mark Shymanski

5623 posts in 4447 days

#2 posted 06-21-2009 12:50 AM

Very interesting, thanks for blogging this. Great detail.

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

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23074 posts in 4095 days

#3 posted 06-21-2009 03:38 PM

Hey matt,
Keep it coming man….looking good.

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Occie gilliam

505 posts in 4030 days

#4 posted 07-12-2009 03:42 AM

thank for posting it will be nice to see this go forward

-- OC down in Costa Rica. come down and see me some time. I'll keep the light on for you [email protected]

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5532 posts in 4811 days

#5 posted 07-22-2009 06:50 AM

this is insane…I AM FAR AWAY FROM trying this…but loving the detailed steps…

-- Matt--Proud LJ since 2007

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