quality in the surface

[Il marangon]

Hello
generally I do not design from scratch but change third-party files and I find myself in the situation to assess whether the file that comes to me is ok or must be improved. I explain better, I usually make moulds for foundry, lamination and thermoforming, and I usually get the drawings of finished pieces. from this base of departure I must develop the mold necessary to realize the piece and not always the surfaces that make up the object are "sane". I putroppo the bontè of the surfaces emerges only when I start to meter hands seriously and it is difficult to understand it in the preventive phase.
Is there a rhino site that allows me to find these faults in a simple and fast way?

 

[mariuss.r]

Hello
generally I do not design from scratch but change third-party files and I find myself in the situation to assess whether the file that comes to me is ok or must be improved. I explain better, I usually make moulds for foundry, lamination and thermoforming, and I usually get the drawings of finished pieces. from this base of departure I must develop the mold necessary to realize the piece and not always the surfaces that make up the object are "sane". I putroppo the bontè of the surfaces emerges only when I start to meter hands seriously and it is difficult to understand it in the preventive phase.
Is there a rhino site that allows me to find these faults in a simple and fast way?

bhe, it depends on what "repair" operations you find yourself having to do more frequently in adjusting the surfaces that give you problems.

what negative characteristics do they have "not healthy" surfaces?

Can you do some examples?

 

[Il marangon]

mainly I have to close the holes and extend the surfaces, called in 2 parles.

to better understand what I mean by "non-healthy" surfaces place some examples that create problems in sucessive repairs

 

[Matteo]

hi, it is not clear to me (even seeing the file you have attached) what you mean by "non-healthy" surfaces. I attach a "red" version (in the sense that I have joined the various pieces in a single "quilt"), you mean this?

 

[Il marangon]

I saw your file and so the surfaces are good in what I sent you:
in example 1 the trim edges are very jagged and unmanageable, the surface is as if it were not a superfice, if the export and the amount with another program the result is that the suprfice is no longer that but anything else, as if it had holes or was no longer flattering.

in example 2 the bevels: I duplico the edges, we added the surface and edges no longer lie on the surface but are distant, the surface is no longer tangent to the adjacent ones.

now, as your file doesn't have these problems, how did you do it?

if I join the surfaces the problem persists

 

[mariuss.r]

mainly I have to close the holes and extend the surfaces, called in 2 parles.

to better understand what I mean by "non-healthy" surfaces place some examples that create problems in sucessive repairs

I feel like giving you the following:

video video video
set the display to a higher level of detail, the surfaces will appear as they actually are.

_documentproperties->mesh->smooth&slower

surfaces

1) _rebuildedges command: reconstructs the trim edges of the surfaces within a given tolerance.
generally puts in place several things (as in the case of the orange surface group)

2) _showedges command: displays the edges of a polysurface

3) _joinedge command: it combines (ironing) the "aperti" edges of a polysurface

4) _patch command: creates a surface even by using multiple edges (over the canons 4)
It is a very useful command to "cap" the holes remaining in tangency with adjacent surfaces.
You're gonna have to do a lot of tests to master it, it's not a pre-packaged command for all occasions,
changing the parameters change (and much) also the results you get.


the commands I have listed are the ones I used to put the sample surfaces back in place (see attachment)

 

[Matteo]

I saw your file and so the surfaces are good in what I sent you:
in example 1 the trim edges are very jagged and unmanageable, the surface is as if it were not a superfice, if the export and the amount with another program the result is that the suprfice is no longer that but anything else, as if it had holes or was no longer flattering.

in example 2 the bevels: I duplico the edges, we added the surface and edges no longer lie on the surface but are distant, the surface is no longer tangent to the adjacent ones.

now, as your file doesn't have these problems, how did you do it?

if I join the surfaces the problem persists

sometimes I had the same problems importing from rhino: sgnaciated surfaces and "gap".

in the case of the example: I opened the 3dm file with spaceclaim and used various functions for the "cleaning" of the geometry (not everything is done in automatism, something I fixed it with the modeling tools).

Hi.
Matteo

 

[Il marangon]

Thank you.

_rebuildedges command I didn't know it and I think it will solve a lot of problems. .
to have found it before.. .

but a surface analysis tool to see if and how many are not good?
If I have three-quarter surfaces I can also put them in place but in some cases I have found a few hundred. . .