I have talked previously about free CAD editors and one of the big winners was DesignSpark Mechanical 2, where FreeCad was close. These two software packages are very good but also very different. DS Mechanical 2 is a direct modeller and FreeCad isn’t (yet). Basically DS Mechanical 2 works like moulding clay where you push and pull surfaces. On the other hand FreeCad requires a sketch, dimensions defining the sketch, and everything is linked together through actions history. These are real editing softwares and require installation and are heavy…. But if you just want to see a STEP file or a IGES file?
You can use LSTC LSPP. It’s available in all the major flavours (including MAC).
Yesterday I went to the mother of chairs and found so many design approaches that I got overwhelmed by it. It’s about purpose, function and creativity, ahh and some color.
Real examples of my previous figure were there! That was expected! I know….
Since I am a visual person I will show it any way… If you look closely 4 legs the central seat but pay attention to how the legs connect to the seat. This is the primary detail that holds everything together. Although materials change from metal to plastic, shaft diameter changes also but also important is how we consider this connection and how we simplify it. And which one will I study? It looks easier compared to the spider but not similar to the small table I shoed before.
Heres another shape.
Another design approach that has the advantage of folding.
Here the typical IKEA office chair. This chair can have different height levels.
The purpose of this post was to show there are many designs available and all of them try to solve a particular problem. There is no such thing as bad in any of the designs, maybe more a question of taste and function.