A lofting is getting near to the end. What I did yesterday is finishing the lines on the table of offsets and drawing an extra view(not exactly a view, exact size of the transom). The transom of our dinghy is not perpendicular to the waterline, so we had to draw another one of it which is different of the one(station 8) on the body plan. Vaughn taught us the method of how to make angles. The transom has 12 degrees angle to the perpendicular line. How can we make 12 degrees? I was really struggling to figure out another method for about an hour and half, because Vaughn's method could make minor error like 0.1 degree. I could not, though.
1. draw a straigh line(longer than just about 600mm will be prefered) on the paper(bigger than 700mm*700mm will be fine)
2. draw a perpendicular line
3. draw 575mm radius of a quadrantal circle
4. draw 100mm length of each straight line making the arc inside the circle
5. those each line make 10 degrees and 10 mm means 1 degree.
Today, Tapu and I have almost finished lofting(for sure?). One main thing today was making stem bevel and planking thickness deduction. We have got 4mm thickness of plywood and 40mm*25mm of stem. We have to deduct the plank for the stem, because it is getting narrower to go forward and it will be a line at the end. Here, I linked a Youtube video of my classmates explaining how to do that.
http://www.youtube.com/watch?v=1OXSags65jU
It looks cool, though I look again.(Thanks Tristan and Lance!)
Another main thing is how to make a deck camber. I will call it half&quarter method. It is really hard to explain without any picture or a drawing even in Korean language as same as the one above. Bugger! but I can see how to do that on Tristan's Youtube. Yeah!
- keelson and stem is different
- planking thickness deduction for keelson on the body plan
- to do planking thickness deduction for keelson has same method with the one for stem
- make sure there is faying surface or a certain joint between stem and keelson
And we rewrote the labels to make them clear to see. Our lofting for two weeks is coming to an end. I hopefully have got heaps of information. Drawing lines is so sensitive work that can make big errors even by a half a millimetre of the grid or early lines. That is because we are using computer these days, but the thing is said to be the number of people using the program like that drawing lines is decreasing. I think we have to 'learn' that we are losing even though it is not about boat building.
1. draw a straigh line(longer than just about 600mm will be prefered) on the paper(bigger than 700mm*700mm will be fine)
2. draw a perpendicular line
3. draw 575mm radius of a quadrantal circle
4. draw 100mm length of each straight line making the arc inside the circle
5. those each line make 10 degrees and 10 mm means 1 degree.
Today, Tapu and I have almost finished lofting(for sure?). One main thing today was making stem bevel and planking thickness deduction. We have got 4mm thickness of plywood and 40mm*25mm of stem. We have to deduct the plank for the stem, because it is getting narrower to go forward and it will be a line at the end. Here, I linked a Youtube video of my classmates explaining how to do that.
http://www.youtube.com/watch?v=1OXSags65jU
It looks cool, though I look again.(Thanks Tristan and Lance!)
Another main thing is how to make a deck camber. I will call it half&quarter method. It is really hard to explain without any picture or a drawing even in Korean language as same as the one above. Bugger! but I can see how to do that on Tristan's Youtube. Yeah!
- keelson and stem is different
- planking thickness deduction for keelson on the body plan
- to do planking thickness deduction for keelson has same method with the one for stem
- make sure there is faying surface or a certain joint between stem and keelson
And we rewrote the labels to make them clear to see. Our lofting for two weeks is coming to an end. I hopefully have got heaps of information. Drawing lines is so sensitive work that can make big errors even by a half a millimetre of the grid or early lines. That is because we are using computer these days, but the thing is said to be the number of people using the program like that drawing lines is decreasing. I think we have to 'learn' that we are losing even though it is not about boat building.
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