September 3, 2013 at 07:44 #36827Dave LeathleyParticipant
Hi all, I am just wondering if anyone can give me the best technique for modelling long keels on sailing ships. I am trying to model a bristol pilot cutter and work out the best way of drawing the keel. Do I just draw upto the Rabbet line or split faces to form a box for the keel. It doesnt help that the images dont seem to match either, when I pull the control point around in one view, it pulls them out of place in the other, then I just go back and forth moving them around.
September 3, 2013 at 14:53 #36830MarvenKeymaster
You should preferably use background images from the same lines plan, using the same scale etc. The best way is to import one image, and then set the scale to the proper values. Once you add the other background images initially their scale will be set to the same value as the first one which should result in correct background images.
September 5, 2013 at 03:02 #36843Dave LeathleyParticipant
Hi Marv, I imported a single image that was scanned from the original drawing by the designer. It happened on another plan I imported, all three views were to the same scale and on the same page, as are the present ones. I think I might just import them into Autocad and measure them accurately, just to make sure its not me thats causing these errors. That didnt solve my initial and main query about the creating a long keel. I had a bash and kinda got a solution, I used a 3d box and tweaked it, but now I have leak points which I think are connected to that.
September 6, 2013 at 04:38 #36844giorgio zuppinParticipant
Hello, about keel design, I can offer an example that you can tweak and twist at your pleasure:
Just a sample, maybe not so correct in shape or… anything else, but looking at the bare grid and tweaking it, you can understand how faces changes shape and mould in a desired surface.
Again, it’s not about background images or leaking points: only moving points on a 3D grid, focus on this.
Hope it will be helpful.
January 27, 2015 at 07:29 #37586Peter EdmondsParticipant
One I have been using successfully.
Terminate your hull at the rabbet line.
Extrude this rabbet line downwards a nominal distance.
Edit, point by point, the z values of this new line to generate the keel half siding line.
Extrude this line a nominal distance inwards.
Edit the y values of the points for hew line to 0.
You now have the centre profile line.
- You must be logged in to reply to this topic.
Hull modeling from offset table
12 hours, 7 minutes ago
3 weeks, 1 day ago
import excel to delftship and surface became twisted
1 month ago
Tank Modeling DTL file Structure
1 month ago
Importing CSV/TXT coordinates as stations?
1 month ago
starting at a blank page.
1 month, 3 weeks ago
Complete Newbie Needs Help Starting Out
2 months, 2 weeks ago
Corner points appearing in model- need help
2 months, 3 weeks ago
Beginner seeks tutor
3 months, 1 week ago
Lines Plan – Header on pdf
by Anneler Ruedi
4 months, 2 weeks ago