Re: hull extension in progress with picks
Re: hull extension in progress with picks
the next thing is to take the 24 foot lond stringer and cut it to the shape of the hull.......
normaly...you can use the old stringer as a template.....but mine were to rotted and with the extension section.....it was a new hull area.......so...how do you make the shape of the inside of a hull?.....
a post and scribe method was used....this is a simple "old school" method
where you suspend the wood to be cut, away from the hull, and take a post......(broom handle in my case).....and scribe the shape on to the peice of wood.....
the 2x4s that support the rig were measured for center...and 3/4 ths of an inch was subtracted......and posts were attached (vertical) to support the wood stringer.......
the stringer was suspended off the hull in the exact place it was going to be placed......
the next pase....take a broom handle.....measure the largest distance between the hull and stringer....and draw that line on your broom handle....
that line is where you hold your pencil.......
next take your broom handle....hold it vertical .....place one end on the hull, hold the pencil on the line.....and trace the hull......
(i would have got a pic of this being done...but i was kind of busy)
that line is just about an exact shape of the hull.....it does not need to be perfect as you bed with peanut butter or the bedding compound of choice....
a jig saw was used to cut the stringer shape on the 24 foot stringer...
and it was test fitted....
this whole process took just over an hour....
as you can see it was a perfect fit.......
the next phase is to bed the stringers and glass tack them into place.....
im not worried about stringer height at this point......the height of the stribger will dictate the deck height.....so after the strings are in...i will calculate where i want the deck......(because of the extension bow deck height will change.....this is because the craft will tend to float stern down)
i will need to "guess" how much the bow will be higher and lower the bow deck appropreatly to keep the deck level at the waterline.....
once i calculate this......i will snap a string line on the stringers and cut them at the desired height........
in normal boat rebuilding, stringer height can be precut, as you have the old deck height as a reference...in this case its not possible.....
ill be bedding the stringers tonight.....(i hope)....with more updates tommorow!
cheers
oops
