Boat Blind Plans | Didi Mini Mk3 Kit from CKD Boats

Boat Blind Plans

I would have to dig deep in my files to find when CKD Boats first started cutting kits to our plywood designs. Owned by Roy McBride, this Cape Town company has the longest history of cutting our kits and has shipped kits for our plywood boats to many countries around the world. They also have the most experience with packaging large or small kits securely enough to arrive at their destination without damage or loss.

The most remote was a Didi 38 kit sent to Johnston Atoll in the North Pacific. It was a very comprehensive kit that included all plywood, complete rig, keel, engine, sterngear, galley equipment, deck hardware, pulpits, sails and even pre-cut window panels and all the cushions pre-upholstered. This was all packed into a standard 20ft container and had to be shipped via New Zealand and Hawaii, all expertly managed by Roy, his staff and his subcontractors.

CKD Boats has just completed cutting a kit for the Didi Mini Mk3 for a customer in France. It will be packed next week for shipping.

Didi Mini Mk3 sheet fresh from the CNC router.

The plywood components are held in place in the sheets by thin tabs that are left between the full-depth cuts. They are released from the sheets by cutting through the tabs with a box-cutter or jigsaw. This system keeps the plywood as full 8x4 sheets for easy packaging and protection of the components from loss or damage.

Didi Mini Mk3 hull skin panels with jigsaw joints.

The Didi Mini Mk3 is one of the first boats that I converted to jigsaw joints instead of the stepped scarph joints that we used previously. This results in easier assembly and is easier to cut, with less machine time involved. These two panels both show a narrow cut on one side and a wide cut on the other. The wide cut is at the junction between flat and radiused panels, so it has a half-depth rebate pre-cut full length of the panel for the structural joint of the radius panel to the flat sheet.

When this kit is out of the shop, the next will start cutting. This is for a Didi Sport 15 to fill an order from a South African builder.

To see these designs and others in our very broad range, please visit http://dixdesign.com/.

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Kayak Boat Plans | Didi 950 Hulls Taking Shape

Kayak Boat Plans

The Didi 950 projects of Fred Grimminck in Australia and Mike Vermeersch in USA continue in parallel. Freds build is from plans only and Mikes is from a kit that was cut by CNC router. Both have completed the flat sheet panels of the sides and bottom and are now skinning the radiused parts of their hulls. This is the stage that the hull shape really starts to show.

Some of the photos that I show of these two projects show minor differences, due to building from a pre-cut kit or with the builder cutting all components. Both produce the same boat at the end of the process but they may look a little different at times while being built.

Side and bottom panels all completed, ready for radius to start.

The photo above is of Mikes kit boat, with neat edges at the sheer (where hull and deck will meet). The photo below is of Freds boat with irregular edges at the sheer. This is because the kit panels are supplied with a uniform strip of waste to be trimmed off to the final line after turning the hull over, while the boat built without a kit has the panels inividually cut by the builder and the waste width may vary.

Same stage, Freds boat. Backbone still to be trimmed at forefoot.

The radius is skinned in two layers, made with narrow transverse strips. The first layer lies on the stringers and the doublers of the tangent stringers, fitted between the edges of the side and bottom panels. These edges have rebates pre-cut into them and onto which the second layer will be laid.

First layer of radius being fitted to Mikes boat.

The rebate along the edge of the side panel can be seen in this photo.

Final hull shape starting to become clear.

Construction of the boat in Latvia has now started and the boat in Greece will soon follow. To see more of this design and others in our stock design range, please visit http://dixdesign.com.

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