How to calculate assembly weight in NX in presence of WAVE-linked bodies

Overview Machining after assembly is a very frequent scenario in real-life manufacturing. In NX, there are two principal ways to apply modeling features to the assembly components: Promote bodies of components and apply features  directly to them, Make copies of bodies using WAVE linker and apply features to these copies. It is outside of the scope of this article to describe these two methods  as well as reasons to pick one or another (although I promise to soon publish an article addressing exactly that), we only have to accept that sometimes WAVE linking is the only option that designer has at his disposal when he needs to machine an assembly. Weight issue Along with certain advantages, use of WAVE-linked copies of bodies creates a significant …

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om3DCAD – free 3D CAD for Android, review and modeling example

Introduction. Om3DCAD  is free CAD application for 3D modeling and CAD file conversion for Android. It has some very basic (non-parametric) modeling tools and, it imports/exports files in multiple formats (STEP, IGES, STL, OBJ). Here I would share my first experience with the tool and will describe a way to make a simple model. Modeling example. The aim is to model a protection cover for a plug (eurosocket type C). The idea came after such plug got broken. During the testing I would check STEP import and STL export (for the following 3D printing). It will include a test of few modeling features. Tested on Nexus 7. The following video can be used as a fast start instruction for the system. Conclusion. Overall, Om3DCAD is …

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