Mesh to Solid Problem

[jdpreynolds]

Hello All

Diving in the deep end here as this is my first go at Photogrammetry and Mesh Modelling.  I am Trying to build a 3D printable model of this Bridge abutment in Devon for the local museum.  I have already drawn up the lost Grider bridge and would now like to be able to convert this mesh model into a solid so that I can continue editing.

I am however running into difficulty converting this into a solid.  Do I simply have too many facets? or am I doing something wrong?

Some advice on the correct workflow would be much appreciated

Thank you

Julian

 

 

[kacper.suchomski]

Hi

A solid is a term used to describe an object with a closed volume.

Your scan, however, is an open set of surfaces.

At this point there is no logical way to turn it into a solid.

You have a lot of work ahead of you to add all the walls that will allow you to enclose the space and then convert it to a solid.

[TheCADWhisperer]

@jdpreynolds 

What physical size do you want the model (1:1 or scaled).

You will only be able to use the scan as visual reference in remodeling the geometry from scratch.

Some photos at different orthogonal angles might also help.

First thing I would do is position the scan/images relative to the Origin at appropriate size/scale and then start sketching.

[jdpreynolds]

Thanks for your  reply  the scale is 1:43.5

 I have approximately 750 photos of the abutment that was used for the photogrammetry, so plenty of reference material.  Just hoping that I can use the mesh model to save some time in the drawing plus that added bonus of the accuracy.

I can close off the model at the base and back of the retaining wall as this won't be seen.  I have done some initial cleaning up in Blender and mesh mixer so might have to return to that software to help with the clean up

regards

Julian 

[g-andresen]

Hi,

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@jdpreynolds  schrieb:

 I have approximately 750 photos of the abutment that was used for the photogrammetry, so plenty of reference material.  Just hoping that I can use the mesh model to save some time in the drawing plus that added bonus of the accuracy.

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If you want to achieve a usable result with minimal effort, avoid scans, use photos of relevant views for canvases, calibrate them, and create sketches on them.

günther

[billbedford]

There is an old joke where a townie gets himself lost in the deep countryside. He manages to find an old yokel and asks him for directions.
"Oh, arr", says the old bloke, "but if I were you, I wouldn't start from here."
That reply should be the motto of this forum.
Suppose the intention is to model any pre-digital object. In that case, it is always best to understand how the original was constructed and then reproduce its components, possibly simplified, in CAD. CAD, in general, is very efficient in building complex models from simple components, much more so than using point clouds to produce solid models.

[TrippyLighting]

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@billbedford wrote:

... "but if I were you, I wouldn't start from here."
That reply should be the motto of this forum.
...

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Spot on!