If you choose "edit group" you can do exactly that, edit the stuff inside the group while still keeping it as a group. I selected it and clicked explode, now this model is no longer a group, and can be edited freely.
I'll take a couple pics of what I mean and show you. Or if you don't want to explode it, and keep it a solid object, right click on it and choose "edit group" (or just double click on it) and you can now modify the model within that group, simply click on an open area of the window to close the group. if you click on the solid object so it is selected, then right click on it and choose "explode" you will find that you can now modify the object. When exporting, it uses whatever scale you have selected in Sketchup, so no need to scale up or down inside the UP program if you use MM in scketchup (which you should be, ).Īs far as importing as polygons rather than a solid object, I think your problem is grouping. When importing, it will import on the inches scale, so if the model was built on the MM scale it is too large, but just follow the steps I mentioned earlier and your good to go.
I honestly have never had a problem importing or exporting STLs using the Openscad plugin. Free Version for personal use and small applications Smooth/Unsmooth: Toggle smoothing on a model's rounded geometry Layerize tool: Easily move all geometry within components and groups to a layer 3D Print Visualization Style: A visual style that highlights problem areas in a model Resurfacer: Shrink wrap a model into one continuous, solid mesh The plugin also provides several tools to ease the process of preparing a model for 3D printing: This new STL file is a single, solid object, ready to 3D print. The CADspan engine uses your geometry to perform a virtual 'shrink-wrap' and outputs an entirely new STL file that describes the exterior of your CAD file. Rather than assume that the input data has been created with a solid modeling program and the file might need repair, repositioning, slicing or scaling, CADspan simply takes the approach that what you see on your screen looks like a model that should be printable. The power of CADspan is the geometry resurfacer - a new approach to file preparation for 3D printing.
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