FREE!ship 2.6 released

[Martijn_vE]

Happy to announce the new release of FREE!ship with the following modifications:

New features:
* Select and delete markers
* Multilanguage support completed. Current complete translations include:
English, Dutch, Suomi, Deutsch, Castellano and French
* Select all command added
* Several modifications to the controlpoint form, also made it transparent
so the model shines through
* Shade submerged surfaces of developed plates in a different color
* Support asymmetrical layers (only layers that are not used for hydrostatics)
* Transparency setting of layers for transparent shading
* Export to STL file (ASCII version)
* Cross curves calculation
* Export boundary coordinates of developed plates to textfile
Bugs fixes or improvements:
* Fixed bug in intersection routine (sometimes no knuckles were inserted)
* Support filenames with multiple dots in the recent files list
* Made some modifications to the GHS export format as suggested by
Creative Systems Inc
* Correct displaying and exporting of intersectioncurves on mirrored
developed plates
* Dragging/positioning of background images with the mouse

The new version can be downloaded from: http://sourceforge.net/project/showfiles.php?group_id=140466

[Windvang]

My Cross curves calculation gives <-> as a result (exact those characters)?
Is this a bug or am I doing something wrong?

[Martijn_vE]

At that particular heeling angle the desired displacement demand can not be met, probably because there's water going over the edge of the hull (sheer). If you still want to calculate it, close the deck.

[Wellydeckhand]

Is there a book published for freeship?:)

[lewisboats]

Is there a book published for freeship?:)

It would be murder to try and publish a book every 6 weeks or so :D

Steve

[marshmat]

It would be murder to try and publish a book every 6 weeks or so :D

Which, amazingly, is how often Martjin tends to put out a new Free!ship. There are some online tutorials for Free!ship; http://www.freeship.org is a good starting point for links. Generally though it takes a few weeks to a month for the unpaid volunteers who work on these to catch up, by which time Free!ship itself has already been improved. Easiest way to learn the program, I find, is just to play with it and see what happens!

[Bruce Taylor]

though it takes a few weeks to a month for the unpaid volunteers who work on these to catch up, by which time Free!ship itself has already been improved.

Yup. I put together some tutorials on making keels and centerboards...and the next version of FREE!ship included a CB & rudder wizard!

[antonfourie]

Good work Martjin

[moeed]

hi every body

i make a macro code in autocad that can calc the cross curve from hull plane or offset table, who wana that?

[marshmat]

Sounds interesting, moeed. If you want to make it freely available, perhaps the easiest way to do that is to slap a GNU General Public Licence on it and post it on SourceForge or a similar hosting service....

[LP]

Here is an example using a couple of the new features in 2.6. The transparency function is wonderful and the symmetric function adds tremendous capability for visuallizing a project.

[Martijn_vE]

Here is an example

You've been fairly busy there LP. Nicely done!

[goolawah]

It just seems to keep happening. I was just thinking about posting a couple of suggested improvements to FREE!ship when a new version comes out and, here they are. How does he do it?

In this case "Select All" was on my list, along with "nudge" buttons on controlpoint form. Any chance in a future version of including the choice of which digit to nudge as in -

N.xxxx
x.Nxxx
x.xNxx
x.xxNx
x.xxxN

This would be very nice for some really precise fitting. Of course, it wouldn't surprise me if it's already there and I have just missed it??

Transparency control of layers is great, as is the transparent controlpoint form.

[Martijn_vE]

Any chance in a future version of including the choice of which digit to nudge as in -

N.xxxx
x.Nxxx
x.xNxx
x.xxNx
x.xxxN

This would be very nice for some really precise fitting.

Have a look at the statusbar of the program. You'll see a small panel with the caption "Incr. distance: 0.10" or something similar. If you doubleclick it with the mouse a dialog appears in which you can change this distance.

[goolawah]

Have a look at the statusbar of the program. You'll see a small panel with the caption "Incr. distance: 0.10" or something similar. If you doubleclick it with the mouse a dialog appears in which you can change this distance.

Yes, well! He that has eyes to see, let him see.

Thanks Martijn. Great stuff!

[yipster]

thanks for the program Martijn but cant find that nudging in the manual,
meaning tollerance by checking leakponts or what is it for?

have seen it but having trouble getting a squared size grid background

no hydro on leaking and asymetric hulls i understand?

how to undo flowlines? when and how to use the locks?

layers ok but how to devellop plates iff manipulating form curves with more points
and or splines seems to fragment the red/green dev screen
(and affects devellopable boundery panels) cant find a tutorial

interior panels? is that extruding from regular edges inward? how? or do the deckhouse as part?

import VRML1 or 97 doesnt work for me and did you draw or imported that head LP?

where is GHS used and .fbm suport instead of uploading zip ?
here my still leaking drawing that isnt even looking good yet but better
getting to know the program first

more questions but meanwhile enjoy the study :D

[Martijn_vE]

Yipster,

The key thing to remember in avoiding leak points is that each edge must always have [/b]two[/b] faces connectedt to it. Nor more or less. The only exception to this rule is edges lying on the center plane of the hull.

You can get hydrostatics out of a hull woth leak points, just as long as the leak points are above the waterplane.

Flowlines can be selected with the mouse and deleted by pressing ctrl-x.

I'm not sure whether I understand your questions about GHS and developability issues.

Last time I checked it was still possible to upload fbm files.:D

[goolawah]

Hang in there yipster, you'll get the hang of it!
It's a fantastic program, but you need to allow time to master it!

Here's a link to a thread about the building of my first design using FreeShip. Still in progress.
http://www.woodworkforums.ubeaut.com.au/showthread.php?t=36758

The main purpose of this project was to gain confidence in using FreeShip. Other designs will follow.

[yipster]

Thanks goolawah, I’ll hang in there :D sure read the link later


Martijn,

control-x takes each individually selected flowline out indeed
also works on other functions? I’ll try, takes some time to master :D

how to draw a cat, extend in (from the hull) or outwards centreline?

played with leakpoints and closed a transom using coordinates

also just drew some swim platform steps wondered if there is a way to lock a point while manipulating?
(going to another view selecting that point may result in selecting a close unintended point)

with minimising leakpoints you mean open edges must close,
or in other words the points of 2 edges have to have the same xyz coordinates yes?

below the waterline closing that now rough swim platform with steps seems a big job,
open the panels, note the location of each corner and bring the various points in numerically or is there a better way?

Learning by playing around with the program but using the devolapebility check the red area’s seem to get fragmented
Bringing in more controlpoints, is GHS a maxsurf format?

Like to try the hydrostatics but first upload the .fbm learn to swim steps

[Windvang]

Thanks goolawah, I’ll hang in there :D sure read the link later


Martijn,

control-x takes each individually selected flowline out indeed
also works on other functions? I’ll try, takes some time to master :D

how to draw a cat, extend in (from the hull) or outwards centreline?

played with leakpoints and closed a transom using coordinates

also just drew some swim platform steps wondered if there is a way to lock a point while manipulating?
(going to another view selecting that point may result in selecting a close unintended point)

with minimising leakpoints you mean open edges must close,
or in other words the points of 2 edges have to have the same xyz coordinates yes?

below the waterline closing that now rough swim platform with steps seems a big job,
open the panels, note the location of each corner and bring the various points in numerically or is there a better way?

Learning by playing around with the program but using the devolapebility check the red area’s seem to get fragmented
Bringing in more controlpoints, is GHS a maxsurf format?

Like to try the hydrostatics but first upload the .fbm learn to swim steps


- If you select a point that point stays selected going to another view
- joining surfaces must have corresponding control poins up to all 4 digits, centerline points must have an Y of 0.000, I do it manually. Use single piece surfaces as much as possible.
- Use a minimum of control points at any time and make the control net follow natural lines. Developability looks quite o.k.

basic hydrostatics, using Rhinomarine:
Volume 3,632
Displacement 3.726
LCB 7,288
LCB/LWL 0,441
VCB -0,135
Wetted Surface 26,887

[yipster]

getting to understand modeling with subdivision surfaces a little better

closed a quik drawn test cat and had resistance and hydro

but after 3 quik try-outs closing a asymetric mono hull centerline up
i keep gettin a double bow edge and 1 leak point, thats the source?

trying imports but export is good and it sure is a fine boat program!

thanks for the advice Windvang, figgers i hope to compare soon
have to do the shown drawing again tho, get that same double edged bow
and 1 leak point, better to draw asym from one hull inwards watertight
moving makes the cat and keeps the calcs (have to check if over 2 hulls)
rotating to give some camber stops the calcs, i'm learning :-)

[yipster]

And that’s logical, calcs get messed up asymmetric I think

better to learn down to the bottom of a mono first
but impatious as I am here some questions over some not so clear things on a cat hull

have a test cat file with all calcs working but a check takes them out, hmm..

cats file underwater area shows flat in michlett

And testing the M2 JMN cat from the design database gives a access violation trying to export to michlett

don’t understand yet why some edges don’t select sometimes or don’t want to be in a triangle

Smallest ok hull I drew in 4 triangled faces and wondered if there is a hint how to unfold to a leak and double edge free check?

Chancing waterline don’t but dimensions do throw calcs out?

Nurb I read in the manual ( like I used to say ) should be nurbS even one nurb is a Spline

KM is kilo moment or something? “KM” not found on the forum, is gravity arm right?
With calcs on by a cat over 2 boat lengths up in the air it shows

Mouse wheel (zooming) sometimes hangs or what?

Arrow keys also move a selected point (handy in other viewport)

probably doing something wrong but learning
just sharing my experiences here with mr brains great freeship

now reading the manual 2e time following the right syntax
a cat, even an asymmetric tri gives calculations

cat underwater stations doe look strange in the michlett file generator tho but I talk way to much and better do it right

[CGN]

Hi Yipster KM is the metacentric height.

hang there yipster you will get it right as you mention maybe practicing with a monohull may help you get onboard with freeship, i haven't try it myself modeling a cat but maybe if you try firts just modeling the hull (cat) without the house it may help too.

cheers

[yipster]

thanks for the KM help CGN and if you do try a cat RTFM ( Read The Fu**ing Manual ) page 44 and mirror and it works like a dream :)

[yipster]

mirrored, moved, scaled and edited now instead of drawing in or out from one hull
am i trying to find mazes in access violation in this great given horse or is it possible ?

[Martijn_vE]

Yipster,

Two important remarks:

First of all, your main hull is still decalared on both sides. You can safely delete that part of the hull that is on the opposite side of the centerplane than your outrigger. (port side in your case)

Second: FREE!ship likes the controlpoints to be on pot side, so you'll have to scale your model in transverse direction with -1.0 do get it on the other side.

Did you really encounter an access violation? If so that'd mean sloppy programming:D
Can you reproduce that message?

[yipster]

was just gonna change the file with delted side i noticed
your very fast and thanks for the advice
reproduce what?

[Martijn_vE]

You mentioned an access violation????
Is that reproducable?

[yipster]

i'll try:D not to and post here or here info@freeship.org

[smartbight]

Just a few double edges. Here is your Trimaran

[yipster]

good to see!

i like your sails and guy and like to see a tri in the freeship database
i'm back to my wavepiercer, still a way to go before i'm satisfied

edit: nopes, been playing with this combination all day
and started trying to calculate some things into the model

[fewfish]

Martijn thank you for the FreeShip. It is a great software for the purpose it is intended. I would just like to know why did you write it in Delphi?

[RSLOOP]

I would be very thankful to have the code
Recently I finished creating a hull of a 1924 R class soop from the lines table given in 1/8". Some lumps and depressions showed up, maby from the original calculations.
Henry
RSLOOP

[westlawn5554X]

yeh... dont leave home without a copy... :)

[Gigster]

I have had a quick look at the software, and am AMAZED that it is offered free. Thank you to those involved.

I would however like to mention that I did not previously know about it until I "purchased' it on e-bay, for the ridicoulous amount of about $3. I thought what could I lose. when I got the download link, I googled the file and came across this forum, and needles to say the software.

Now, if the seller on E-bay is not Martijn, then I think Martijn should know. If it is, however, I think Martijn, you should charge more. It looks brilliant, and I am sure it is.

Thanks again
Llew
Gigster

[marshmat]

I doubt that's Martjin selling FreeShip links on eBay, gigster. As far as I know he's a good honest guy. In fact I'm pretty sure that what you describe is a violation of eBay's rules.
Martjin recently released DelftShip, the next generation of FreeShip. There are two versions, a somewhat simplified 'free' version for people who just want to sketch out back-of-the-napkin ideas, and a 'pro' version (a few hundred to a few thousand bucks, depending on options and plugins) that can handle most serious naval architecture projects up till the point where the hull, tankage, decks etc. are finalized and the structural design begins.

[Gigster]

Thanks Marshmat I thougt that would be the case. Can you imagine how different this PR*CK is to Martjin?? Here is someone that has put in who knows how much effort, and makes it available freely, and on the complete opposite end is some f*ckwit who actually goes into business illegally. What a wanker. Basically stealing.

Martjin, if you pick up on this thread, I would be more than happy if you contacted me directly, so that I can make a contribution. And I am sure that there are many more out there that would do the same.

To the PR*CK on ebay - your time will come. Believe it.

[Bruce Taylor]

Interesting.

One of my own designs -- the ultralight camping boat Blackfly, which I offer for free on my own website -- appeared on Ebay a few weeks ago, bundled with a bunch of other free plans (mostly reprints from old magazines).

Amazing what people will do to turn a buck.

[yipster]

Back to FREEship ( vs delftship ) on hull surfaces weight works nice
do invisible layers for engine or tanks work in calcs for this poor wharfrat
without using the grey cells give that waterline, ok, i'm trying :D

[LP]

Yipster,
Even though the layer is not visible, it is still in the mass calculations.

The hydrostatics switch turns a layer off to hydrostatic calcs, but not the mass calcs.

The mass calculations are nice. I've have a couple of models built with ballast and full interiors. No engines yet though. Setting the specific weight or thickness to zero will zero the mass of that layer.