The photo above is a Twiggy Mk1 from France

This presentation documents the construction of a modified version of Lock Crowther's famous Twiggy Mk 2 trimaran

Wednesday, March 11, 2015

Stringer install technique

masking tape located on the stringer at both sides of each joint indicates where 
to sand the epoxy coating on the stringer for better adhesion

- each sanded area on the stringer was first coated with clear epoxy

- and clear epoxy was applied in the notches to promote adhesion
- much of the wood in the notches is end grain
- they should be first saturated before filler is applied or a dry joint could result

then epoxy with wood filler (peanut butter consistency) was generously applied to each notch

- the stringer was inserted into the notches and held in place with temporary screws used as wedges
- the spatula was used to work any gaps in the notch full of epoxy filler
- fillets were made where the stringer meets the frame
- removing the masking tape made for easy cleanup near the fillet




No comments:

Post a Comment