When my brother try to 3D write using STL files created in Shapr3D they have all measurements in inches even though I used centimeters or millimeters when I designed. Does anyone have an idea what I am doing wrong an how I can get the measurements right?
STL does not contain any unit information. Only numbers. This means that if you export to STL, it does not matter what units you used. This is not specific to Shapr, this is how it works in every modeling tool. I suppose you are trying to import it to a slicer - you will have to scale the model properly. It is quite unfortunate that STL has become the standard for 3d printing and for other manufacturing tools, but this is how it works Hopefully someone will come up with a much better file format soon.
Hi Richard, I believe they do, but STL files don’t contain unit information. There can be a million reasons why you get the same size between two different programs when you are exporting to STL, but it’s not the STL format. I strongly recommend ditching STL and using 3MF instead. Also please read the linked help desk article, it will explain how to export from Shapr3D to STL in order to get the right units.
Most likely it’s because the two software that you are using both handle STL’s unitless data in the same way. But there isn’t an industry standard for that unfortunately. This is something that you could experience between several different programs. It’s fortunate that the combinations you used so far are handling it the same way.
For 3D printing STL file are fine and will get the job done, if you’re doing something else other than that the suggested file formats may be the better option, I really wanted to subscribe to this program, but rescaling is not an option
This characteristic of STL files can be problematic when you handle slicers, for instance, if your model is created in inches and your slicer uses centimeters by default. To fix this, you can scale your model in the slicer or standardize the unit of measurement in your entire workflow. In Shapr3D, you can change your model’s unit of measurement to your slicer’s during the export process:
I had the same problem with STLs from other Cad programs imported in Prusa slicer. If you didn’t change to mm before exporting you had to rescale. Change to mm before exporting and problem “accurately” solved.