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From: corchet
4 Jun 2020   [#68]





et qqs booleans plus tard
From: corchet
4 Jun 2020   [#69]


adding profiles for a round top
adding profiles with scales to loft the internal hull ( yellow )
From: Gord (NEOMEGA)
4 Jun 2020   [#70]
Thanks guys - finally did it somehow!

Image Attachments:
Screenshot 2020-06-04 at 23.00.02.png  Screenshot 2020-06-04 at 23.00.16.png  Screenshot 2020-06-04 at 23.00.32.png 


From: Michael Gibson
4 Jun 2020   [#71] In reply to [#70]
That's great Gord!

- Michael
From: Frenchy Pilou (PILOU)
4 Jun 2020   [#72]
@ Corchet What a diversity of variable floating conception! :)

@ Gord Cool result!
From: Frenchy Pilou (PILOU)
7 Jun 2020   [#73]
Else...;)


From: Gord (NEOMEGA)
9 Jun 2020   [#74] In reply to [#73]
Thanks! Really interesting!

G
From: Gord (NEOMEGA)
9 Jun 2020   [#75] In reply to [#73]
OK, another issue on my next project. I'm doing a Clyde Puffer. I have the hull done and in solids. Yes, I know it could be fairer, but whatever, the master model can be sanded slightly, and these things had lumps everywhere!

I have 3 solids, but try as I might, I cannot get the two stern ones to boolean into the others. I tried Diff and Union, but no result. Why won't it do this. I can cut a line through the sterns, but I can't use this technique to trim off the ends to be flush for some reason. Nothing works again!

Thanks!

Gord.

Image Attachments:
Screenshot 2020-06-09 at 21.01.17.png 


From: Michael Gibson
9 Jun 2020   [#76] In reply to [#75]
Hi Gord, it's the bottom curved surface of the stern pieces. There are damaged trimming boundaries in these spots:


And there's a kind of mutated micro shelf in this area:



How did you create this piece, was it a result of a Shell operation? It kind of looks like the sort of stuff that Shell messes up on.

It's also possible that this very thin area here could be considered an area of self intersection:



It's not generally good to have opposite sides of a solid squish down to such a thin area.

If you have any earlier stages of these pieces if you can post them I might be able to tell you where things started to go wrong with them.

- Michael

Image Attachments:
gord_bad_geom1.jpg  gord_bad_geom2.jpg  gord_bad_geom3.jpg  gord_bad_geom4.jpg 


From: Frenchy Pilou (PILOU)
9 Jun 2020   [#77] In reply to [#74]
Yep this serial of videos is very instructive how is made a wood boat! !
(i am on 20/73...; )

And Albert Strange a cool artist and Yacht designer!
https://en.wikipedia.org/wiki/Albert_Strange

Hull Plan of Tally Ho from another cool site : https://davestallyhomodel.blogspot.com/2019/02/the-first-steps.html



Amazing stuff!

From: Gord (NEOMEGA)
9 Jun 2020   [#78] In reply to [#76]
Thanks. Yes, it was network surface then boolean joined. It's not repairable then? I know I'm doing a difficult shame again as one part has to go down to basically nothing, whilst the other upper part has to be 90 deg. to it. Not sure what to do now. It is OK on loft, but it doesn't follow the plan shape too accurately though.

Image Attachments:
Screenshot 2020-06-09 at 22.27.47.png 


From: Frenchy Pilou (PILOU)
9 Jun 2020   [#79] In reply to [#78]
Maybe you can see the videos about hulls about this site (and free prog ;)
(not so easy than moi! ;)
http://www.polycad.co.uk

From: Michael Gibson
9 Jun 2020   [#80] In reply to [#78]
Hi Gord,

re:
> Yes, it was network surface then boolean joined.

It looks like there are just a couple of spots where the endpoints don't touch. It would probably be a good idea after you construct one of these networks that you want to join to other straight parts, to edit surface control points and ensure the end control points are all trued up to be flat so the ends will be planar.

It's probably things waving around just a little bit out of being planar that is causing enough misalignment to be problematic.


> It's not repairable then?

It might be, I'll take a crack at it.

- Michael
From: Gord (NEOMEGA)
9 Jun 2020   [#81] In reply to [#80]
Appreciate it, thanks!

Is there a scrip I can run to allow me to see these problem areas highlighted larger? I use N, but it only shows the whole edge.

G
From: Michael Gibson
9 Jun 2020   [#82] In reply to [#81]
Hi Gord, there isn't any script for that, you just zoom in closely especially on corner areas where things join up. You can use the "Zoom area" tool to zoom in centered on a specific spot.

- Michael
From: Michael Gibson
9 Jun 2020   [#83] In reply to [#81]
Hi Gord, here is a stern piece which should be all trued up. I think this could use it here too though:



- Michael

Attachments:
puffer1.2_trued.3dm

Image Attachments:
gord_needs_truing1.jpg 


From: Michael Gibson
9 Jun 2020   [#84] In reply to [#81]
Hi Gord, I guess I planarized a little bit too much, I guess I should not have pulled this one up to be planar:


I was kind of thinking the upper surface wanted to be a simple straight extrusion.

- Michael

Image Attachments:
gord_planar1.jpg 


From: Colin
9 Jun 2020   [#85]
Hi Gord,

Your constant issues with lines not meeting or touching makes me wonder whether you have "Object Snap" switched "ON"..?
If not, then may be that could help to explain a lot of your issues?

HTH, Colin
From: Gord (NEOMEGA)
9 Jun 2020   [#86] In reply to [#85]
Hi.

Thanks, I thought I did do - see the screenshot. Must I alter numbers somewhere?

Gord

Image Attachments:
Screenshot 2020-06-10 at 08.39.19.png 


From: Frenchy Pilou (PILOU)
9 Jun 2020   [#87] In reply to [#86]
Funny! Never used even don't remember that is existing! :)

Maybe because i don't use millimeter as unities
Seems all is enabled!


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