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Hull with new feature Loft

GIOV

Alibre Super User
Hi Harold or all,
Please do the loft of this example hull with the new feature, from a bow inside surface of the bow (in yellow) and trough the all frames & transom. See the ScreenPic:
1652289535476.png
1652289630586.png
Please export the file to STEP.
I do like evaluate this new feature.
Thanks very much in advance!
GIOV
 

Attachments

  • Hull GIOV with new Feature Loft-R1.AD_PRT
    649 KB · Views: 7

HaroldL

Alibre Super User
GIOV,
Here's what I got for your Loft. It took some time for my computer to calculate and create it. I had to turn of Twist Minimization to get it to work.

1652315868379.png
 

Attachments

  • Hull GIOV with new Feature Loft-R1 - Completed.AD_PRT
    1.1 MB · Views: 7

GIOV

Alibre Super User
Hi Harold,
Thanks!
Your image shows some bottom discontinuity or I am wrong?
Please export to STEP file because I using ADV23 64 Bits and ADV14 32 Bits.
 

HaroldL

Alibre Super User
I took a closer look at it and saw that the tangency on the bow line was causing some odd shaping at the bottom. I redid it with no tangency on the bow and it looks better. There is still some discontinuity because the bottom of the hull is sharp and the bow has a flat so the transition between the two causes some issues.
No Tangent On Bow.png
 

Attachments

  • Hull GIOV with new Feature Loft-R1 - Completed.stp
    1.7 MB · Views: 3

GIOV

Alibre Super User
Hi Harold,
Try with this R2 which has a bottom keel of 5 mm in all frames.
Export with STEP203.
1652330962672.png
 

Attachments

  • Hull GIOV with new Feature Loft-R2.AD_PRT
    569 KB · Views: 3

HaroldL

Alibre Super User
I recorded this short video while adding the loft. Adding the flat on the bottom of the hull helped the loft resolve faster.


And here's the STEP file.
 

Attachments

  • Hull GIOV with new Feature Loft-R2.stp
    557.9 KB · Views: 2

GIOV

Alibre Super User
Hi Harold,
Very good thanks!! You video shows a good smooth surface.
Now I would like you to try lofting from the transom to the bow.
Try to export with STEP203.
 

HaroldL

Alibre Super User
I did two files one with and one without the Bow profile part, in case you need to remove it anyway.
 

Attachments

  • Hull GIOV with new Feature Loft-R2 Transom-to-Bow_BowRefRemoved.stp
    2.6 MB · Views: 3
  • Hull GIOV with new Feature Loft-R2 From Transom-to-Bow.stp
    2.6 MB · Views: 3

GIOV

Alibre Super User
Thankd very much Harold!
I did Bow Feature Cut and Applied Shell Deck remove but without success. I don't the Lim( A<=T<B). My CPU Running and running..
I need know what is the minimum A and Maximum B.
 

HaroldL

Alibre Super User
Thankd very much Harold!
I did Bow Feature Cut and Applied Shell Deck remove but without success. I don't the Lim( A<=T<B). My CPU Running and running..
I need know what is the minimum A and Maximum B.
I'm not familiar with those parameters. Please explain them.
How thick is the shell supposed to be?
Here's what I got with a 10 mm shell:
shell 10 mm.png
 

GIOV

Alibre Super User
I'm not familiar with those parameters. Please explain them.
How thick is the shell supposed to be?
Here's what I got with a 10 mm shell:
Yes, What is the minimum and maximum thickness that the feature shell is able to achieve.
My 32 bits doesn't able to do the shell with 10 mm. I will try with ADV22:OK
1652411546374.png

Thanks very much Harold for your help!!
 

HaroldL

Alibre Super User
The minimum shell I got was 0.1 mm the maximum shell was 46.25. Over that there was some artifacts along the outside of the bow. The thicker the shell the longer it took to resolve, and I'm running a 64 bit machine. Here are some screen shots.

Minimum shell:
shell 0.1 mm.png

Maximum good shell:
shell 46.25 mm.png

Artifacts along the bow started showing at 46.3 mm, shown here at 48 mm:
shell 48 mm.png

I did have one at 49 mm without the artifacts and one at 47 that failed :confused: , so I'd guess that the max thickness would be at 40 to be safe.
 

GIOV

Alibre Super User
Hi Harold,
I discover some rough surface in the bottom keel that do a connection to the base of the bow.. May be adding a guide curves make this better or edit the loft applying specific tangent.
1652463129750.png
 
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