17 votes
Accepted

Modeling hexagon pinhole lens for 3D printing

Here is Modifier version you asked for ... ... add a Circle 6 sided, extrude E, scale S - to create a segment with a hole Array - use two of them to create like "rhombus" shape Mirror X and ...
vklidu's user avatar
  • 36k
15 votes

How to deal with bad contiguous edges for 3d printing

In Edit mode, I pressed A to select all, then Mesh->Normals->Recalculate Inside. This fixed it for me as my problematic edges were inside a cylinder recess in my object.
Thirteenth Bridge's user avatar
15 votes
Accepted

How to model an accurate parabolic mirror with a known focal point?

Add mesh z surface Enable the add mesh extra objects addon, then from add menu choose add > mesh > math function > math z surface The equation of a ...
batFINGER's user avatar
  • 84k
15 votes

Modeling hexagon pinhole lens for 3D printing

I don't know if this method will appeal to your precision requirement, but believe that, with care, the accuracy will be as good as that achieved by a boolean, especially if you take into account the ...
Robin Betts's user avatar
  • 75.4k
14 votes

How to import 3D buildings from OpenStreetMap to Blender

Here are some updates to the script https://github.com/vvoovv/blender-geo/blob/master/io_import_scene_osm.py Extruded buildings based on building:levels using a level_height setting in import. Also ...
batFINGER's user avatar
  • 84k
13 votes

How do I add a texture when Importing from OBJ scan?

Go to material, and activate "use nodes" then on "color", click and select "image texture" then at left of "open", click and select your texture then at right of "object mode" change viewport ...
MCunha's user avatar
  • 1,263
13 votes

Creating an implant for spinal surgery - workflow questions

Hopefully this is captures the problem and a solution. To create geometry for a fixure which can be lifted off a complex geometry like a spine, you can use a high resolution mesh and the shrinkwrap ...
Ed Tate's user avatar
  • 5,176
13 votes
Accepted

Can Blender be used to send to a factory to create silicone products (mass production)?

AFAIK, CAD software and blender are not that different, especially for 3D printing. The main difference would be operation, and maybe some tools to make sure the object could be made with a mold. Just ...
TheLabCat's user avatar
  • 6,159
12 votes

How to reduce the thickness of letters

The Shrink/Fatten tool seems like a good fit. Just select the faces you want to move, and shrink them.
jachym michal's user avatar
11 votes
Accepted

How to prevent hidden shapes from being exported to .stl file?

Before exporting, press A in object mode or go to Select > All to select everything. Hidden objects won't be selected. Then while exporting, check "Selection Only" on the right to export ...
Gorgious's user avatar
  • 30.4k
10 votes

Align an object to a specific face

Try my addon, Mesh Align Plus (we align an object in the example below, but you can also do this to a mesh selection or whole mesh):
egtwobits's user avatar
  • 664
10 votes
Accepted

How to import 3D buildings from OpenStreetMap to Blender

Update 25 January 2017 The OpenStreetMap importer for Blender has been completely rewritten. Here is the link: https://github.com/vvoovv/blender-osm A large number of roof shapes is supported: flat, ...
vvoovv's user avatar
  • 817
10 votes
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Any way to "thicken" my model without scaling it?

Well, it turns out I should have kept trying for another half hour before posting. For anyone else with this problem, select all in edit mode, hit Alt+S to scale along normals, and then, while scaling,...
Josh's user avatar
  • 281
9 votes

How to evenly distribute same size holes across a stretched surface

You could model this: Establish Basic geometry, (mine is an extruded half round-cube) and reserve a highly-subdivided copy, you're going to shrinkwrap to it later X Delete > Only Faces Edge Menu &...
Robin Betts's user avatar
  • 75.4k
9 votes

Can Blender be used to send to a factory to create silicone products (mass production)?

Zargul is correct about what is needed for the model. There is more to it than just making sure a model is manifold. A molded product must meet certain restrictions of not having deep recesses that ...
dpdp's user avatar
  • 435
9 votes
Accepted

Why isn't my bezier curve a curve instead of straight segments?

It won't be a smooth curve like in a vector software but you can increase the Resolution of the curve in the Object Data panel: This resolution will be taken into account when you'll convert your ...
moonboots's user avatar
  • 151k
8 votes

Scale settings for exporting to STL (for 3d printing)

Set Blender in metric mode. Don't touch the scene scale. When export to .stl set the scale to 1000 (in the export menu). It seems that most slicer use mm. :)
Sadmandono's user avatar
8 votes

Slicing an object in 4 parts

Segment an object in X, Y and Z Using a script written for blender 2.80 Split this thing 4 in x 3 in z I've been playing around with a bmesh bisect script that is a lot quicker, but unfortunately ...
batFINGER's user avatar
  • 84k
8 votes
Accepted

How to evenly distribute same size holes across a stretched surface

You could try instancing for this. Reduce the object to a profile Parent the cutting shape, set instancing to Faces Add the Screw modifier and adjust it to your needs. Then just go Object > Apply ...
jachym michal's user avatar
8 votes

what is an overhang face

First of all, I believe the question was migrated wrongfully, but let me clarify some: What is an overhang? An overhang does not exist in a model per se. Overhangs only exist in the print, and areas ...
Trish's user avatar
  • 213
8 votes

Controlling inner diameter, outer diameter, and height of object using geometry nodes

you can use this node setup here:
Chris's user avatar
  • 57.5k
7 votes

Removing internal geometry before 3D printing

All internal faces can be selected by using Select > Internal Faces in the bar on the bottom of the 3D View in Edit Mode. Since internal faces are Non-manifold geometry, you can also use the shortcut ...
Gwen's user avatar
  • 11.6k
7 votes

How to merge two sculpted meshes?

You may use a Direct Union option of a BoolTool add on. Activate it in User Preferences (Ctrl+Alt+U). In my case I have four objects with different vertex count. Some of them were sculpted, some of ...
Paul Gonet's user avatar
  • 33.4k
7 votes
Accepted

Edit STL file and perform a very simple cut

Well, as you seem to have discovered, there is no shortage of possible ways to go about this. Without going into too much detail, I would probably use a boolean modifier in this case. To do this: ...
gandalf3's user avatar
  • 157k
7 votes
Accepted

Iris Mechanism Blades for 3d Printing

Ok. Actually, to model this blade, you have first to understand the underlying geometry. Its the intersection of 3 circles that make up that shape. In the following I will show you how to make that ...
HenrikD's user avatar
  • 2,271
7 votes

Modeling hexagon pinhole lens for 3D printing

If you want to have a live control as with the array modifier, you could try using an instancer: SHIFT + A, then M, then Y for a new cylinder. SHIFT + A, then M, then R for a new circle - set ...
Markus von Broady's user avatar
7 votes

Can Blender be used to send to a factory to create silicone products (mass production)?

There are two kinds of 3D file formats in common usage: Mesh formats: The model consists of flat triangles or polygons. This is the native format of Blender, and can be exported as .STL which is ...
jpa's user avatar
  • 183
7 votes
Accepted

Noob question rounding half toroid

I would do something like this: Use Inset (press i key when a face is selected, then size it with mouse) to add a second ring to the bottoms. Otherwise we have a 12-gon that will misbehave when we ...
Savaric's user avatar
  • 128
7 votes

Creating / 3D Printing large O-rings using geometry nodes

OK, here's a funny solution… It always is when cloth simulation is involved… Add a Mesh Circle, in my case 256 resolution, EExtrude up, ⎇ AltE extrude along normals. It's important the vertex indices ...
Markus von Broady's user avatar

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