triplus wrote: ↑
Mon Feb 19, 2018 3:04 pm
That Plane relation in Assembly 3 is a tricky one indeed. I tend to avoid it for now. Hopefully it will improve a bit over time. Create Assembly feature and drag and drop two Part cubes in it. Select two points on Cubes edges and add PointCoincidence relation. If you have Auto recompute set to ON it should just work. If no press on Solve constraints command after. But note that Assembly 3 doesn't resolve the topology related behavior we discussed earlier.
Well, Assembly 3 seems to offer a lot of constraining options, so even in case I wouldn't follow your hint exactly, you're certainly right I should think over about the constraint concept. Perhaps other constraints would have sense as well or even a better sense, and they might be less prone to topology breakdowns.
I would likely recommend exploring Arch workbench for such project. In Architecture fully parametric approach (like in mechanical engineering) usually isn't needed. Said that in FreeCAD Arch workbench offers a lot of parametric features. And you could design a house in Part Design. If that is what you would like to do.
Well I have couple of reasons for not to use Arch WB. The first one is, that I'm a mechanical engineer after all, so I'm not too familiar with the architectural concepts used in Arch WB. Maybe the most important point is, that the architectural part of the project is long done and what I'm after now is detailing. This means a good drawing for every
member (column, beam, strut,...) and I think this is what assemblies are ideal for. A precise drawings for off-site timber work is a necessity, every little mistake costs a lot of time and effort (tested on smaller shelters
), when assembling on-site. Another point is, that I would like to get used to parts and assemblies in FreeCAD, as in future most of the stuff I'll do will be mechanical. The barn and shelters are exeptions.