4 Meter mono foiler project

Is it that Doug is going upwind, and Mike is going downwind?

 

I don't believe Lard is in either photo.

I did run across this photo of a new foiler. Maybe WA can get some ideas from it. You can see how much it has started to lift off, based on the height of the waterline above the water. If only the helm would work the "Veal Heel" I'm sure they would pop right up.

It does have the right transom design for a foiler (unlike the red paddleboard), but obviously does not have the midship wand or the FU Box. If it did it might have popped up already.

 

Just needs a gantry to help with foil separation.

 

That would be ugly and look like a contraption.

 

Well, I am sick of trying to work with CNC programmers, after spending a week looking for anyone with a 4X8 vac table machine in the Boulder area that had a drafting program that could read my OSX dfx files (and finding no one) I've decided to go old school. Yes thats right. 1:1 PDF & Kinko's. I'm taking some stanchion drawings down to them, have them printed out on 36'' wide paper from their plotter, then Super 77 them to some MDF, and start getting after it. I'm going to do all the moulds for this first boat by hand. I don't care what all you smarty pants NA's out there say. All kinds of boats have been done this way (moth's, IC's, Swifts, A Cats, ect.) it will be fine. With the fantastic way the economy is going in this country, I find myself with more time than money. And I will finally be able to get to work.

 

Do you know what your SA/ws number is hullborne?
Keep the faith and start cutting! Good Luck!
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PS-just noticed that your transom station looks like it pinches in-seems like in combo with the reverse bow it might lock the hull to the "mold"? Just at the begining
of the radius it looks narrower than above the radius?

 

It is narrower (a little sinkable stern experiment) but not much, I've seen it done before, it should be ok, the laminate should flex enough to where it won't get hung up, the bow doesn't get bound together until after its off the mould, so that should flex enough to get it off as well. thanks for the concern.

 

Why would OSX cause problems with dxf files?I would have to say that I would expect the parts to be seperated out rather than presented as a stack,as shown in your attached jpeg.In fact if you had them nested on eight by four sheets you would have helped considerably.Your old school methods will work admirably but a bit more slowly.I have no familiarity with the adhesive you are proposing to use to attach your plots to the MDF but would urge caution as moistening the paper can cause the paper to stretch.Drafting film is much more stable and unfortunately rather more expensive.How are you proposing to fill the gaps between the sections?

 

Its a beta version of OSX Rhino, I don't know why, but every woodshop I sent my Dfx and Dwg files to couldn't get them to open. They made Solidworks crash, Autocad would open them and they would be blank, I can open them in my Rhino for windows, but none of the shops around here have Rhino (and yes, I exported them from Rhino windows as well, nothing). It just wasn't working out. I was getting them CNC'ed to save time, and It ended up being more of a hassle. I have access to a full blown woodshop so I figure Its going to be a way for me to get through my lunch breaks (instead of surfing the internet). All my CNC drawings where nested on 4x8 sheets, just like you said, but I reconfigured them for kinko's because I'm using 3 machinable templates to get my 24 frames instead of 24 individual stanchion prints (less waist, more exact.) Here is an example of my deck frames drawing that I was sending out. It really doesn't matter to me that its going to be more work this way. A lot of the intention behind this project was for me to find something to do with myself. Something cool "I" built with my hands. This new aspect adds to that premise as apposed to taking away from it.

 

whats your goal weight?

 

Sa/ws hullborne and foilborne?

 

90lb all up

 

Its a secret

 

OS/X files are different from Windows files in a bunch of ways.

Generally where windows uses carriage return/line feed pairs to end a line, OS/X just uses a linefeed. Numbers in previous MACs were stored as big-endian, not little endian as in PCs. It was a processor architecture thing from the 68000 that just kept going forward for years. Intel processors are little endian.

Compression on MACs is different as well.

Generally, there are lots of file translate/transfer utilities for moving files from MACs to PCs. A quick inspections of the file with a hex editor will give some clues fast.

When porting software between processor architectures and platforms, this kind of stuff happens all the time - the core C libraries in each platform may differ in how they implement basic functions like file I/O - each platform tends to use it's own rules. This means files written out by the exact same piece of source code may differ across platforms.

New software ports have these things show up, and usually in a couple months they have to replace the dynamically linked library elements with statically linked functions that force the system to generate compatible files, or the build in a file translator/transfer utility.

Hope this clears things up a little for you. I've simplified things a lot but you should get the picture.

 

M4

Heres a vid you may not have seen. The boat has 7 sq.ft. less SA than your boat with the same all up weight as your target weight:
http://www.dailymotion.com/related/x7ngs_foil-surfing_extreme/video/x24hz_m4-dinghy-foiler_extreme