Forums: The Deben 5-Tonner: What is a Trig New Topic Post Reply
Author Post
GregH
Posted: Jul 4th, 2010 at 04:05   |   Subject: What is a Trig
In reading some of the building instructions for other sailboats here, I've come across reference to the use of a "trig" when building the hull. I've never heard of this before. Can anyone explain it to me?

thanks
Greg
debenriver
Posted: Jul 11th, 2010 at 21:23   |   Subject: What is a Trig
A Trig is a short piece of wood (perhaps 120 x 50 x 15 -- something like that). One end is screwed to a fixed item (with a screw perhaps 30mm in from the end) and the other end sits over a piece of timber that needs to be held down in some way. It applies pressure to the piece of timber.

In fact, a Trig can be used in all sorts of ways – it can be rebated and a wedge driven under the rebated end – it can be plain and screwed down at an angle over the piece of timber that needs to be held down (as described above) – it can be used like a turn-button (with a screw nearly central) so as to push a piece of timber sideways (typically a deck plank) – it can do the pushing sideways and the wedging down in one go – it can be held down with a clamp instead of a screw when glueing items up. In fact it has numerous uses!

George

debenriver
Posted: Jul 14th, 2010 at 21:57   |   Subject: What is a Trig
And –– if you look at New Designs - Design 152 - Planking slide show – Slide 14 – you can see a Trig in use (a bit bigger than I described in my previous post) to hold a plank edge down (on the right hand side of the picture)!

So it's not just designer's dream world stuff - it's real useful, practical stuff.

George

GregH
Posted: Jul 17th, 2010 at 19:48   |   Subject: trig
thanks for the info. Used devices like that in other projects. Just didn't have clue as to name. Slide 5 in the planking slideshow has one as well does it not?

thanks
Greg