Thursday, April 21, 2011

Sheer & Bunk Supports Installed

If you're building one of these boats and don't own a Dremel with the flexible drive shaft you need to go get them.  I've been dreading notching out the the frames and sanding the twenty plus limber holes of the bunk supports.  My neighbor showed me the flexible drive and I bought one on-line that night, both tools were less than $100.00.  Since I purchased these cutting the small notches and sanding the tight corners have been so quick and easy.

It so happened we misplaced our camera while we were installing the sheers.  I missed a few great shots as Josie and Meredith mixed and spread the epoxy, installed the sheer, and clamped the assemble together with very little help.  They had a truly great time and it is installed as clean and straight is if I had done it myself.  Of course a few days later we found the camera for the shot above.

Tuesday, April 5, 2011

Fames in Final Form / Chainplates Planned

All of Mist’s frames are installed, filleted with epoxy, and taped with 9 oz S-Glass.  The next step is to glue in the bunk supports into the bottom of the hull.  Bunk supports are installed between frames 53 and 169. These serve two functions; they are bunk support, and they’re hull bottom stringers.  I’m choosing to have large lightening holes in the supports to allow air to move through to assist drying any water that may enter the boat.  I'll have photos of the bunk supports on the next update.  The photo below shows the boat with all frames installed.

I finished designing the chain plates for Mist but have yet to assemble them.  I spoke with Colligo Marine to determine 5mm Dynex Dux is adequate synthetic rigging for the i550.  After determining the breaking strength of this Dynex Dux,  I used 'The Gougeon Brothers on Boat Construction' book Chapter 14 'Hardware Bounding' as a guide I determined the minimum length of G-10 tubing needed to support the mast's loads.  Four inches of 3/4"D G-10 tubing epoxyed into the stem and hull sides is a conservative length hold.  The Dynex Dux will pass through the center of the tubing and will terminate with a large stop knot.  I was hoping to be further along with assembly.  Suppose I've been over optimistic!  I'll keep working at it.