I've been using Rhino since 2016 for CAD modelling and design. I settled on Rhino after testing some other CAD software, as it provided a good range of functionality was reasonable intuitive to learn and has with good help/tutorial support.
My primary interest up to now with CAD modelling has been to construct digital models to document things that interest me (submarines, sounding rockets and target drones to be specific :-), based on drawings and photos ie. integrating the reference material into a 3D model which can be used to document specific configurations which can then be used to generate derived drawings, cross sections or images. This year I finally got a 3D FDM printer and have started experimenting with printing the CAD models.
Rhino is one of the software used in naval design and building architecture, so has useful tools for modelling submarines. It uses NURBS rather than meshes to construct curves and surfaces and with experience it is possible to get smoothly lofted surfaces from construction curves (either classic lofts of cross sections, swept lofts along reference rails between sections or network surfaces built up from a series of intersecting curves). There is also a parametric modelling application called Grasshopper which is included in Rhino which can be used to generate models based on equations and varying input parameters. I made some quick models of various small axisymmetric AUV hulls using this method from Myring hull equations & NACA airfoil sections, as well as a reasonable approximation of a Thresher / Permit submarine hull using the Myring equations.
For 3D printing the files need to be exported as mesh files which is relatively straightforward but I found the default settings too coarse for printing, so this needs some adjusting to get right. However, you can visualise the 3D print in the slicer software before printing. A fairly comprehensive tutorial can be found here;
In addition there are a set of mesh tools for directly working with meshes or deriving things from them. Also there is good support for import and export of many other file formats.
Ultimately, the choice of which software to use for modelling comes down to what you want to do and how much time, effort and budget you want to invest. I assume that many of the other software out there can do similar things to Rhino & there are some good examples of CAD modelling work done with other packages on this forum.
The key thing is taking the time to learn the tools and build up the skills, as with all modelling pursuits :-)
My primary interest up to now with CAD modelling has been to construct digital models to document things that interest me (submarines, sounding rockets and target drones to be specific :-), based on drawings and photos ie. integrating the reference material into a 3D model which can be used to document specific configurations which can then be used to generate derived drawings, cross sections or images. This year I finally got a 3D FDM printer and have started experimenting with printing the CAD models.
Rhino is one of the software used in naval design and building architecture, so has useful tools for modelling submarines. It uses NURBS rather than meshes to construct curves and surfaces and with experience it is possible to get smoothly lofted surfaces from construction curves (either classic lofts of cross sections, swept lofts along reference rails between sections or network surfaces built up from a series of intersecting curves). There is also a parametric modelling application called Grasshopper which is included in Rhino which can be used to generate models based on equations and varying input parameters. I made some quick models of various small axisymmetric AUV hulls using this method from Myring hull equations & NACA airfoil sections, as well as a reasonable approximation of a Thresher / Permit submarine hull using the Myring equations.
For 3D printing the files need to be exported as mesh files which is relatively straightforward but I found the default settings too coarse for printing, so this needs some adjusting to get right. However, you can visualise the 3D print in the slicer software before printing. A fairly comprehensive tutorial can be found here;
In addition there are a set of mesh tools for directly working with meshes or deriving things from them. Also there is good support for import and export of many other file formats.
Ultimately, the choice of which software to use for modelling comes down to what you want to do and how much time, effort and budget you want to invest. I assume that many of the other software out there can do similar things to Rhino & there are some good examples of CAD modelling work done with other packages on this forum.
The key thing is taking the time to learn the tools and build up the skills, as with all modelling pursuits :-)
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