topic Re: Adding Thickness to Canoe Surface in AutoCAD Forum

Adding Thickness to Canoe Surface

Anonymous — Tue, 13 Oct 2015 17:23:09 GMT

Hey everyone, this is my first time posting here. I'm working on a 3D canoe design for a school project and I want to get it 3D printed to model and test. I'm having issues adding thickness to my file. I can offsetsrf to 0.625inches, but the problem occurs at the bow and stern where I need a fine or rounded point because the offest surfaces end up crossing each other and it looks like (X) instead of (^). I tried variableoffset, but I can only match two points and I still have the same issue, just slightly differen't looking.

I also tried exporting to .stl to then put into solidworks and add the thickness there, but this file type has very limited functionality once in solidworks.

Any help would be greatly appreciated.

Thanks.

Re: Adding Thickness to Canoe Surface

Patchy — Tue, 13 Oct 2015 17:37:39 GMT

Workaround it, Delete the one giving you trouble, mirror the other one then THICKEN, print it, take a piece of sandpaper and rub it off

Re: Adding Thickness to Canoe Surface

JDMather — Tue, 13 Oct 2015 17:40:13 GMT

@Anonymous wrote:
.... and I want to get it 3D printed to model and test. ....

Do you have a printer that will print a 20'boat?

No? If you scale it down to fit a smaller printer - what will be your wall thickness in the scaled part?

Re: Adding Thickness to Canoe Surface

Anonymous — Tue, 13 Oct 2015 17:56:20 GMT

I think I figured it out. I was actually trying to add the thickness in Rhino 3D, but if I try thickening in AutoCad without offseting the surface it seems to work, but it's hard to see the thickness applied in the program. I'm going to export it to another prgram to see if it actually thickened.

I will 1:20 scale for 3D printing.

Re: Adding Thickness to Canoe Surface

JDMather — Tue, 13 Oct 2015 18:30:00 GMT

Here is my example using Shell feature in Autodesk Inventor. (saved as AutoCAD dwg file)

http://a360.co/1jmuw5E

I would have modeled as a solid in AutoCAD or SolidWorks as well and then Shell away the top.

Re: Adding Thickness to Canoe Surface

Anonymous — Mon, 19 Oct 2015 19:49:41 GMT

Thank you for your response. I wasn't aware I couldn't get Inventor on my Macbook and I was just made aware that the shell thickness should be 2 inches, not 0.625. Would you mind terribly adjusting the dwg file from 0.625 inches to 2 inches so I can get the model 3D printed?

Thanks