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11th March 2011, 05:42 PM #31SENIOR MEMBER
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That's a neat looking machine. Which model is it? No wheel to turn. On our machine one of us was constantly having to turn the wheel when the cloth thickness overpowered the machine at the multi corner patches.
We stripped the plastic gears of a heavy duty machine but the metal drive of our home machine managed ok.
How are you finding the assembly and sewing of the curved edges of the panels?
Really looking forward to your results.
How do you print out the SailCut4 settings, and the 3D sail shapes? I only managed a screen dump which is very small.
I would love to compare numbers. I think my sails are fuller in the bottom third.
Brian
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11th March 2011 05:42 PM # ADSGoogle Adsense Advertisement
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12th March 2011, 01:18 AM #32
The machine is a Husquvarna with lots of computer controlled stitch patterns, including triple-zig. It does have a hand wheel seen on the left, but it's not the sort of heavy flywheel of my mother's old Singer. I'm keeping my fingers crossed that I don't strip anything because my wife will KILL me. Or, she will be happy with the even better replacement I will undoubtedly purchase.
So far, the two seams I've done were easy to align. The first had virtually no shaping, the second about 14mm spread over more than a meter. That one ends within the head, maybe a half meter or so from the throat. The next panel will contain the throat and its seam will hit the upper part of the luff. I haven't looked at the number lately, but I think that shape will be more like 20mm or so. I'll look up some numbers tonight and share. With that we can compare draft figures? More to follow...
I did a test run of a corner construction and found that just barely get through ten layers of fabric with a thinner needle. A thicker needle stops at about 5-6 layers. Check out my blog for a look at that effort.
My Sailcut images are screen shots too. I use a Mac at home and I have a utility that allows for different screen shots options, one of which is a drag-selection tool. The images I've shared come from zooming in with that tool.Dave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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14th March 2011, 02:20 PM #33
I'm no seamstress
Well, I guess I won't quitting my day job any time soon...
Good thing I'm not stressing out over perfection with this project. Maybe I should stop being such a stubborn loner and ask for help when I need it. Anyway, all the sail panels are put together. I wish I could roll the whole thing out, but my backyard is like soup right now. Soon, soon.
As always, more details can be in my Lugs'l blog. Next up: corner patch design, construction, and installation.Dave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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15th March 2011, 01:45 AM #34
OH NO DAVE!!! The wind really cares about neat stitching, you know. You're not going to go anywhere now. EVERYONE is going to notice at the boat ramp too, and point and laugh at you too, I'm sure. Don't bring your kids to avoid humiliation in front of them.
Great job, I've been enjoying your posts on the blog. I'm totally afraid to even start attempting a project like this, so it's great to see someone step up to the plate and do it, like Al and John, and maybe others that I'm forgetting in the GIS crowd. You're keeping it real. What was the final cost?
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15th March 2011, 03:38 AM #35
I'll just send the drunken monkeys to rhe launch ramp and let them take the heat for me!
Sent from my iPhone using TapatalkDave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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15th March 2011, 08:59 AM #36
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15th March 2011, 11:19 AM #37Dave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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15th March 2011, 11:37 AM #38
The higher seams have negligible broadseaming but the head does have some round. I specified 50mm in the data window, but it's hard to tell how that translates to these coordinates, especially since the head round is spread over three separate panels, and on a diagonal at that. Once I can lay the sail out I might try to lay a straight edge down and compare.
The foot is another matter. While I specified 50mm of round, it looks like Sailcut assumes a loose footed boom. I'll hold off on finishing that edge until I determine for sure that is has the shape I intended, or until I commit to a loose footed boom (not what I had planned, but I might consider it).Dave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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15th March 2011, 12:42 PM #39
I wouldn't call it final yet, but the materials from two sources have come to about $280 including shipping. It would have been more like $200 if I hadn't gone with the brass rings and liners. I also purchased some tools with those orders, but I account for those separately.
Of course, there's more to "cost" than the price paid for the materials. Time, sanity, beer... many inputs are required to produce a quality Lug.Dave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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15th March 2011, 02:26 PM #40
And also the intangible benefits have a value!
MIK
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18th March 2011, 10:17 AM #41Dave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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18th March 2011, 11:17 AM #42
Taking shape
It's starting to look like real sail!
Dang this thing is big. Maybe it's better that I DON'T see a real live Goat in advance. I think I would have been intimidated. Now I'm in for a penny...
I'm generally pleased with the amount of shape created by the seams, especially considering there is also some head round and a touch of round in the luff (just a touch really). I believe the luff round will push into the body as soon as I sew the edge tape in place. I expect the tape to be much stiffer and to hold its straightness well.
Next up: corner patches. Think kind thoughts for my sewing machine please...Dave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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18th March 2011, 03:05 PM #43
Yes, the luff curve is pulled straight from the tension of the downhaul, which will then impart shape there.
Just a tip. Sew an extra piece of cloth (doubled by folding in half) down the luff. My sail is made from 5.5 oz dacron and has stretched a bit already (3/4 of a season old) In the off season I'm getting the luff reinforced.
Yes, it's a big sail alright! I've been sailing a club full rig Laser on and off in the past couple of months, and its sail feels like a hankerchief by comparison. (Don't worry, the Goat is still getting on the water every w/e!. It's just that I'm thinking I may as well join the Laser fleet for the races, otherwise the results don't really mean anything)
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19th March 2011, 12:12 AM #44Dave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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19th March 2011, 12:39 AM #45
G'day
How much overlap on each seam?
do you need to double each seam over into itself like the drawing attached?
or is a simple overlap sufficient ?
I ask because I have just acquired an ancient sewing machine with which to start sewing my future sails instead of just duct taping them.
cheers
AJ
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