from solid surface box

[grebanno]

Hey, guys.
I'm new to rhino and I'm trying to hang myself but I can't find a solution to this problem,
I think I didn't grasp the logic of realizing a solid in rhino... tell me you...

I created the closed polylines and then extruded them creating the horizontal surfaces of the table, then with patch I swabbed the front faces of the table, now I would like it to become a solid to be able to work for bolean subtraction.

at this moment I created only a box of surfaces, but I don't understand how to extrude and have a single solid obtained from the intersection of the surfaces... have I perhaps wrong procedure to get to my goal?

thanks to all members

 

[TECNOMODEL]

rhino does not work with solids but with nurbs surfaces.
If the polysurface is closed you can work quietly with the boolean.
keep in mind that rhino manages to do boolean operations even with open surfaces or polysuperficies, in this case however everything is a little more difficult because there must be no open spaces in the intersection area and the same must be complete.
otherwise the operation fails.

 

[grebanno]

rhino does not work with solids but with nurbs surfaces.
If the polysurface is closed you can work quietly with the boolean.
keep in mind that rhino manages to do boolean operations even with open surfaces or polysuperficies, in this case however everything is a little more difficult because there must be no open spaces in the intersection area and the same must be complete.
otherwise the operation fails.

Thanks technomodel, soon I'll get back to work,
I wanted to know if you can work with the nurbs and then transfer everything to cnc machine, I know that usually the numerical control machines work starting from a solid....I would then realize this 3d printer prototype in scale... .

I have seen that there is the possibility of having the development on paper as an origami to be cut out and pasted so to get to true an idea before spending money to print in 3d....serve an add on? ?

thanks to all

 

[TECNOMODEL]

you can safely use rhino files for both cnc processing and 3d printing.
obviously to print will be exported in stl format.
to relax you can do it with the smash command, it's not very precise but for what you want to do you should go.

 

[grebanno]

you can safely use rhino files for both cnc processing and 3d printing.
obviously to print will be exported in stl format.
to relax you can do it with the smash command, it's not very precise but for what you want to do you should go.

thanks technomodel,
today I tried to move forward, try to understand how to get a polysurface of nurbs on which to operate, only that I can not make the final boleana of sum of the surfaces... .

I created the two extrusion profiles in sweep, the initial one and the one of arrival, then close the two front faces, using the "report curve" command to have the boundary of the surface to be created, and then using the patch command to create the surface, only that the surface that generates is not placed on the selected boundary but I believe aligned to the z axis...

what is the most appropriate command to carry out the cap of a sweep? ?


Thank you.

 

[TECNOMODEL]

You don't need a boolean to close the surfaces, use the joint command.
in the command bar a message will appear with "x surfaces joined in an open/closed polysurface"
It is preferable that the result is a closed polysurface, this to avoid possible drawbacks in the rest of the work.

As for the patch you have to be careful about the settings you create it, depending on how the result is set can be very different. In your case I don't see it very suitable, it would hardly remain closed, especially in the edges.
if it is a flat surface you have the appropriate command to create it.
I also suggest not to extract the curve and then to draw the surface but to use directly the edges of the already created surfaces, you save time and is a little more precise.
attention also to the curves that you use to create the first set of surfaces, if you start badly with those with curves "brutte", edges not combing etc. then the result will only come accordingly.