#3D PRINTER MODELS HOW TO#

For millimetre unit models try 0.1 to 0.01. Maximum Distance edge to Surface: Less than half of the printerвЂ™s resolution.These are the specific settings recommended for 3D printing:.There are simple controls and detailed controls вЂ“ always select detailed controls.However for 3D printing, the model must be exported as a mesh model. Using OsnapВ helps to prevent open curves, a common source of bad objects.Use the RebuildedgesВ command to recreate the deleted surface. Explode detected bad objects and use the SelbadВ or Extract Bad Surfacescommands to delete specific bad surfaces.If this doesnвЂ™t work, that means there are NURBS structural problems in the model. Many bad surfaces can be fixed by exploding and rejoining the model.This runs in the background and instantly detects bad objects and corrects objects instantly. Use the вЂ ChecknewobjectsвЂ™ command to verify objects as they are created.Make sure to save your NURBS model before this operation as it is difficult or impossible to reverse. In Rhino 3.0 Service, Release 4.0: Under Bonus Tools you will find вЂ FillHoleвЂ™ and вЂ FillHolesвЂ™ to fix naked edges in the mesh. Select Show EdgesВ в†’ Naked EdgesВ as before. Your NURBS model can be converted to mesh with the MeshВ command.If precision is not important, the JoinEdgesВ command can be used to join surfaces forcibly, however itвЂ™s better to recreate the bad surface.Created surfaces and existing surfaces must be within model tolerance to join correctly. Naked edges due to missing surfaces can easily be corrected by filling in the hole with a new surface and joining the new surfaces together.Select AnalysisВ в†’ Show EdgesВ в†’ Naked EdgesВ to display naked edges in your object.They often appear after joining and Boolean operationsNaked Edge: Surface edges not connected to other surface edges, which create open meshes that cannot be 3D printedДЇind open polysurfaces by selecting Analyse DirectionВ в†’ Show EdgesВ в†’ Select Open Polysurfaces,В and then follow the steps below: To Prevent Naked Edges The most common reason models become unprintable is due to bad objects and naked edges.Д«ad Object: Objects that violate NURBS rules or have structural problems. To achieve a watertight model, you need a closed polysurface. if you dropped the model in a bath, no water would leak inside. Check Your 3D ModelsДЇor successful 3D prints, the 3D model should be watertight, i.e. Make sure your units are set to mm before exporting your file for printing. No matter what units you use to create your model, files exported from Rhino are almost always read as mm. Rhino file tolerance can be set from the document properties window, units tab. Set correct tolerances before you start modelling by finding the tolerance of the program you are exporting your model to and setting Rhino tolerance to be 10 times that (i.e., printer tolerance is 0.1mm, so Rhino tolerance should be set to 0.01mm).

#3D PRINTER MODELS HOW TO#

There are some unique considerations to keep in mind when preparing 3D print files specifically in Rhino, so for this post,В weвЂ™re going to go into more detail on how to export your CAD models here. We recently wrote an overview on How to Prepare CAD Files for 3D Printing, going over some general considerations and steps to properly export your 3D printing files.

3d printer models