How can I create a watertight mesh?

[Scott Phillips]

Hats off to the Profactor dev team!  I'm loving the new release.

I'm wondering what is the recommended method of turning textured scan data into a watertight mesh that would be suitable for 3D printing.

In the old version I did this with Netfabb, but that doesn't seem to want to load either .ply or .off files.  

Are there any applications about that will rectify a textured scan in these formats?

[Kim Lindaberry]

Well I'm fairly new to ReconstructMe but one thing I've noticed is that if you are recording the color data to your scan you can only save the scan as a .PLY or .OFF format, however if you are not recording the color info you can save to other formats like .OBJ

[Kim Lindaberry]

OH yeah btw, MeshLab allows you to edit PLY files.

On Monday, October 28, 2013 10:14:02 AM UTC-5, Scott Phillips wrote:

[Scott Phillips]

Hi Kim,

Thanks for that.

I understand about the file formats. I also understand that it's possible to translate ply to stl using MeshLab, which could then be fixed up in Netfabb. What I have not succeeded in doing is getting MeshLab to create a watertight mesh from the colour scan data, or even getting colour data from the scan and applying it to the fixed up (watertight) version of the mesh.

There might also be a solution to do this in Blender or 3D Studio Max, but I have yet to nail either of those.

Scott

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[Fred Kahl]

Netfabb Basic's repair is what you want. I did a video on this routine a while back. Its slightly out of date in that I would now use auto generated support, rather than manually adding the cylinder for the elbow, but otherwise this is my cleanup workflow:

http://www.youtube.com/watch?v=jwORqPxhNwc

[Fred Kahl]

You inspired me! Here's an updated version of the video:

http://youtu.be/9ZVc-CpVLrs

[Kim Lindaberry]

Wow, Thanks a lot for the video Fred.

I only downloaded NetFabb Basic a couple of days ago and honestly it hasn't been making a lot of sense to me. I'm used to Lightwave so the tool usage and functionality of NetFabb wasn't immediately apparent to me. Now that I've seen it in action and I think I'll be able to work through some of its other features it just fine. I've got that bookmarked and I'm sure I'll be watching it several more times. It's very helpful to see your workflow.

I'm also going to have to review your Scan-A-Tron 2000.

Thanks again,

Kim

http://www.KimLindaberry.com

[Kim Lindaberry]

One question Fred. I noticed that you opened an OBJ file to do your demo. Do you find it better to save your original  ReconstructMe scan as an OBJ as opposed to a STL prior to opening it up with NetFabb? I know it has to be saved as a STL in order to print but is the OBJ format preferable or does it make any difference when doing the initial scan?

On Friday, January 3, 2014 12:24:49 PM UTC-6, Fred Kahl wrote:

[Scott Phillips]

Thanks for that Fred. It's a very clear demonstration that you have put together there, but Netfabb Basic actually doesn't suit my needs, because I need to retain the colour data from the scan. Netfabb Basic doesn't handle the colour formats such as PLY. It just can't open them. So, I'm looking for a way to do the same, but with coloured mesh data.

On 4 Jan, 2014 5:24 am, "Fred Kahl" <fre...@gmail.com> wrote:

You inspired me! Here's an updated version of the video:

http://youtu.be/9ZVc-CpVLrs

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[Fred Kahl]

Kim- My version of ReMe only saves PLY or OBJ, so thats why I'm using OBJ. 

[Fred Kahl]

Scott- Sorry, I can't help you there.