8-22-14:  All moulds were rechecked on the master loft panel and trued up, center marked etc.   Base is marked with two reference center lines.  Need to transfer the original keel jig longitudinal lines onto the keelson itself then using laser beam layout center lines and station profile marks to allow shaping to begin.

8-18-14:  The final lower level laminate is glued in place and cured.    Went ahead and removed the keelson, cleared the deck and started laying out moulds.  The springback is ~6mm so opting to figure later once the moulds are set and new loft lines checked with laser.

The keel has been getting in the way so moved it onto a flat dolly and hiding it under backbone.
 



This is the last steam bend for the backbone and getting ready for glue up in a few days.

Here the gap for frames and cross members is seen beneath 'G' laminate.

Laminate F glue up shown here to right.  Need to steam this tomorrow and bend on jig so likely putting off glue up final till early next week.  I missed the trim on E so had to cut scarf insitu on stack and glue in inserts.

Putting together some numbers on cold-mould material.  Surface of hull is 9.93E6 mm^2.  Will need 7.4 sheets of 4'x8'x3mm  BS1088 marine ply.  Assuming 10% loss but have 2/3 sheet to make mistakes.
A change is looking up for frames made from ply sheets as well instead of oak.  Cost by BF is very high but efficiency  seems to make it about even overall.  It appears the length of the curves from shear to shear (is that gunall to gunall?) is nearly 2 meter for stations 7, 6, 5, 4.  For a first design of a laminated frame built up from 3mm plys it requires 1/3 of a 4'x8' sheet.  Considering 3-5 frames in the station 4-7 region focused about the centroid of the keel 2 more sheets are needed.
There is very little design ready for the internal structures, bulkhead etc.  Looking at 6mm sheets there and maybe another 3mm to build 9mm if needed.  So....1x 6mm, 11x 3mm.  How's the glue holdin' up?

A bit more scarfing on the final keel layer.  Should have this glued on Friday if Iselle cooperates.

Well this is boring so here is something a bit more tooth worthy:

https://www.youtube.com/watch?v=NjadS07KnTU

 
Three layers were laminated yesterday and the work went very well with the team.  Opted for some available 207 Special Clear hardener that was available in town instead of 206 to help slow things down. Attention at the stem and 1-3 stations really paid off and the laminates fit real well together. We set screws along the length in various locations to locate and clamp a bit.  Those will come out in a day or two and get filled with epoxy.  In about a week we'll add 3-4 more laminates that should build up to the level where cross members attach.  The cross members perhaps can be installed once the molds are setup and the hull line is established, properly positioning them prior to skin being built.

In the mean time will remove and fill screw holes with epoxy, build up laminate layer F and turn some 10' planks into 20' stringers for the mold.

Keel lamination to start:

The buildup of the keel is starting tomorrow.  I recalled I missed some trim on the C laminate so I quickly glued that up today and it should be good to go tomorrow if we get that many layers stacked.

Here is the transom, 8 and 6 stations being laid out.  All moulds were built referenced to a horizontal baseline.  The stem should sit 50mm above the base frame and everything moving up from there.  Storing these for now while the keelson laminating gets ready.

Discovered the loft value errors.  I was comparing them to the templates...duh.

Just added a water fountain in the shop for the hot weather(in pic below). Someone was throwing it out.  It needed the valve rebuilt but the refrigerant cycle works and there are no leaks.  A little paint and scribing and we get chilled water....yeah!!!

Started building some moulds.  I assumed I would lay it out on the floor but there is so much chicken sh_t around  from the wandering birds I am working off of a panel.  Paper traces are transfered to boards, cut, fitted, assembled and soon to be final shaped.  Only need to finish up 7 and 8 and the transom.  Everything is sized for 1/4" skin and 5/8" battens.   In another week or so we will get a crew together to glue up the laminates on the keelson.  I think the keel mould can get taken down by end of July and then the station moulds setup.   Those aft stations 6, 7, 8, T  really get some tight turns.  My battens for tracing lines (or whatever you call it) started breaking.  I eventually used a piece of balsa and tiny nails set at each loft point with the balsa bent around them.  That would have been nice to try earlier on.  An offset line at 22mm (batten and skin) was then drawn parallel to each true loft line giving the mould outer line.

Much bigger now...

6/4/14:  More of the same.  Building up laminates A, B, C, D.  Then a smaller set of E thru G to follow.

The curvature in stations 3-2-1-stem proved a bit much for 10mm laminates C, D and E.  I am putting together a steam box to help bend the whole set before gluing.  Not sure how long this will delay keel work but stations could be worked on in the mean time.  Sort of a hodgpodge of picture here showing more laminate buildup, planing, fitting and prep for bending.

Standby, I am getting close to starting up the work again.  For now here are some really great videos:

https://www.youtube.com/watch?v=IX2S25LH6Hs

https://www.youtube.com/watch?v=EbVMxSrTnLM