You need it to be: "_ImportOBJ exact" without any additional stuff added to the end. There is a scale option when I import and I can rescale post import, but I am relectant to do this. I know that I can change the units in properties->scene, but this converts the the units (1m->1000mm), so it's no good. The error message is coming from adding the. I want to import STL files which I know to be in mm, but blender displays it in meters. Now, if I want to print the same shell in a larger scale, say 1/48, the wall thickness will nearly double and it will waste material printing walls that are thicker than needed. Since 1/87th is the most common scale I make the walls of the shell just thick enough to make it rigid in 1/87 scale. > Tried Max's "exact" trick."_ImportOBJ exact.htm" and "_ImportOBJ exact.js" Command files.but I get an error message. Let's say I create a shell for a model railroad car. Scroll down to the bottom and set the Scale option there, set it to 1000. One way you can solve it would be to switch your MoI units to meters before you do the import, then switch it back to mm after you've done the import.Īnother solution would be to set the Blender option for scaling the output, the control for it is shown in the lower left area of the Blender window when you do the export.
Or perhaps you are actually working in meters in Blender and not in mm like you think you were? But there is nothing in the OBJ spec that says that it should be in meters. It sounds like this could be a bug or quirk in the Blender OBJ exporter, it seems like it might be rescaling the output to be in meters units instead of just keeping the existing coordinates without any modification. That's for your "Box_2_subD_test.obj" file? I opened that file in several other applications like Rhino and Silo and get the same result as in MoI. By default, Unity 5 applies a File Scale of 0.
BLENDER PRINT TO SCALE HOW TO
Making a note of how to do it properly here for future reference. > Blender test model is 430.0mm wide.but imports to MoI at 0.43mm. Its a bit of a pain to correctly export meshes from Blender to Unity 5 using. That option is only for OBJ export out from MoI, it doesn't have any effect for the SubD importer. If your consuming system does something weird like assuming units are in inches, then your scale factor will be weird (2.54 or 0.3937 some such), but it'll be simple conversion math.> I looked at the Import/Export options in MoI "OBJ options".scale factor is at "1". For example, if your consuming system (printer, software, whatever) says "we assume one unit is one meter," then you'll want to scale your whole object by a factor of 0.01 so that your blender units imitate meters. In summary use the same proportions that you want it to be (15x8x13) and then scale that by whole numbers (and probably by 10s) to get it the right size. Softimage, Blender and other 3D modeling and animation software. If you cant or dont want to scale up the model, the only other thing you can do is edit the mesh for that part in Blender. Printed at 1/12 scale, length is about 5 feet long and 2 feet wide. If not, you may need to scale up the model more or print it in multiple parts. Check to make sure that thin parts will actually be printed. Shapeways is also good about letting you see a preview of your model and giving you its final dimensions so that you can say "10 feet wide? that's not right." If your print looks like a giant mess, try turning off Display Extrusions. Pressing S will enter the Scale transformation mode where the selected element is scaled inward or outward according to the mouse pointer’s location. Scaling means changing proportions of objects. and not position, rotation and scale as separate keys 3D Print Models. Shapeways is good about letting you tell it how big your units are. Object/Mesh/Curve/Surface Transform Scale. BTS Of my 3D scanned friend in Blender Daz 3D is part of. No one will ever be able to know (with some exceptions) that you were using those units as inches.Ĭonsequently, any consuming application has to make some kind of assumption about how big those units are. After performing a conversion based on paper size, you will get a size in Blender Units.
For instance, we can get a paper in A4 size and choose a scale of 1:100. When you export that mesh, it's still in arbitrary Blender units. How can you set the scale You have to draw the paper you wish to use for print, and based on that paper size we create an object in Blender with the proper dimensions. When you choose "inches," Blender is just pretending that its own units are inches. Underneath it all, Blender uses its own units for everything. but you still have to guess and check.īlender can be a little confusing regarding units.
The specifics entirely depend on the platform you're planning to print to, but the general idea will be the same for all of them: they'll tell you. It is already good to print (which I verified first with the 3D printing tools and then by uploading it to Shapeways) but it needs some tweaking, mainly in the.