Building Minimus II

(Updated 8-24-2020)


--Minimus II, Description

--Minimus II, Sea Trials

--Back to Adventure Page

This page describes the construction of Minimus II, beginning in September 2018. 

The materials we're using in the hulls of Minimus II are:

-- 1/2" MDO plywood throughout
-- 1" x 2" lumber for chine and sheer stringers
-- 2" x2" lumber for bulkhead reinforcement and deck beams
-- Raka epoxy with medium hardener
-- epoxy additives, including wood flour, chopped fiberglass, microballoons and silica

The plywood and most of the lumber was purchased from a local Oregon lumberyard, the remaining lumber was from one of the box stores.  The epoxy and most of the other materials was purchased online from Duckworks Boatbuilding Supply in Port Townsend, Washington.

First, a few words on designing.  I drew Minimus II using Libre CAD, a free, open source 2D program.  It's the same software I use for most of my work in sustainable systems design.  Like many designers, I'm capable of drawing in 2D and envisioning it in 3D, at least for the relatively simple designs I prefer.  Given those designs, working out displacement, prismatic coefficient and other calculations is fairly straightforward.  

--Miscellaneous photos from the shop

--Week 1: 1st Hull--side panels, bulkheads and assembly

--Week 2: 1st Hull--fillet and tape bow and stern, install chine stringers and hull bottom

--Week 3: 1st Hull--fill screw holes, fair and apply fiberglass

--Week 4: 1st Hull--deck beams, bunk boards and cabin tops

--Week 5: 1st Hull--decks, sheer clamps, mast collars, hatch coamings

--Week 6: 1st Hull--decks and cabin tops glued on, beam cleats cut and glued     

--Week 7: 1st Hull--painted, put on trailer  2nd Hull--hull side panels cut and glued  

--Weeks 8-11: 2nd Hull--finished and onto the trailer

--Minimus II Building Completed!

--Junk Sails

--Free Standing Masts for Junk Rig