Hi, I am working on application in which i need to find wall thickness of 3D models mainly STL files. The application I am working is mainly used for 3D printing manufacturing. So for me it is very important to unsure that the model is printable and model thickness is within the range. Thanks,

Hi! Could you explain a bit more? What do you mean with “thickness”? Model’s volume?

Hi Thank you for response.Here wall thickness means the shell thickness of part. Refer below image for more details [Capture] In this case wall thickness is distance between two highlighted faces

based on similar questions on mesh volume, volume of a mesh can be calculated by following equation: volume = ((vec1 x vec2) . vec3) /6 where vec1, vec2, and vec3 are the vectors from origin to a mesh triangle, and x is cross product and . is dot product. [tet-298x298] and for the volume of th…

Hi, Thanks for suggestion!! I have already calculated volume of model Below is the code i used: function volumeOfT(p1, p2, p3) { var v321 = p3.x * p2.y * p1.z; var v231 = p2.x * p3.y * p1.z; var v312 = p3.x * p1.y * p2.z; var v132 = p1.x * p3.y * p2.z; var v213 = p2.x * p1.y * p3.z; var v1…

@sonali_funde1 I didn’t get the start of the process, when you want to find the thickness of a wall. Do you want to point on it with mouse and then get the distance to the other side of the wall? Or do you have just a model and somehow you have to know the thickness of a specific wall? Could you…

Hi, I use the same formula as you for the volume. The formula for the area is as below based on your notation: Area of a triangle of a mesh = || (Q - P) x (R - P) || /2 Where x is cross product of the vectors, and || is norm of the total vector, which is the same as the length of the total vector. …

Hi, thank you for the questions. I merely have a stl file, loaded into three.js, and I need to know minimum wall thickness of the mesh, in order to check printability. For example, a ring has specific thickness = outerRadius - innerRadius. I need to calculate this wall thickness, for irregular geome…

Hi, Actually I have 2 main task find the distance between two faces of model by pointing/clicking on it with mouse. Analyse the whole model and find out whether the model is printable or not. Because 3D printing machines have limitation on wall thickness. for example, some machines does not acce…

@sonali_funde1 Maybe something like this: Set material’s property .side to THREE.Double. Loop through faces, finding the midpoint of a face, then use a raycaster to cast a ray from the midpoint in direction of the negated normal of the face, thus you’ll get the distance to the nearest intersected…

How to find wall thickness of 3d models (STL) files?

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prisoner849 January 18, 2019, 9:49am 5

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How to find wall thickness of 3d models (STL) files?

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