Tuesday, May 17, 2011

Small craft building Day 2

Well we have done the strongback and all the frames of drawing on the MDF today. I made a mistake of measurement when i was drawing frame of STN 2 and also cut that board too much while using that band saw.















But today was not too bad to me cuz I reviewed the lofting knowledge of transom.:)
  

Monday, May 16, 2011

The small craft building day 1

We upgraded our Dory from 3.6M to 4M.  :)
I think we spent too much time on making the extension of the table but it is really  essential as well.

Cutting list of that extension of strongback 
2 braces (small)
Legs 810mm(high) * 4 pcs
braces inside 810mm(length) * 2 pcs
extension bar 1000(length) * 2 pcs
screw block * 4 pcs 

Next we selected 3 pcs of MDF(Medium Density Fiberboard) of 2440mm * 1220mm

Transferring the drawing from CAD printed onto the boards . It needs our absolutely accurate drawing!!
It would be very annoying if we get some mistakes.









All done but unfortunately we got one piece of waste as the inaccurate drawing.
  Next step we are going to set up these frames on the strong back.

  Making some blocks like wedges and screwing them on the strong back with 2 pieces every single side.

 





Making some braces and screwing them between the frames for strengthening.
  

Saturday, May 14, 2011

lofting day



"Before you can actually build a boat,you must loft its lines to full size."

The first step in lofting is to lay out the grid for the three views.The grid is the general name denoting all of the straight lines that represent the location of the buttocks,waterlines,centerlines,and station lines.
(be sure of that the measurement should be very accurate)

When all the straight lines are finished the next step is to draw the curved lines.I begin with sheer line.Go to the table of offsets for the profile view,given in distances from the centerline.Then at each station line,carefully measure the dimensions from the Cl given in the offsets.Lay a fairing batten on these points.




To make sure the batten can touch every point by its edge i use nails to hold it there.