3 responses to “ProE Etiquette”

  1. GEARS

    I whole-heartily agree with the “think like a machinist” statement. I’ve seen so many parts that look absolutely gorgeous until someone asks “how are they going to make that?”. That’s many’a’design killer.

    With that being said, I still have my love-hate relationship with Pro/E. Sadly, SnowU uses it for their UG program so I’ll have to suffer through it some more.

  2. Ben

    Personally, I’m a SolidWorks user. I’m not sure how ProE works, but SolidWorks makes it very easy to implement that idea of “think like a machinist.” If you only use extrude and cut it’s very hard to design something that can’t actually be machined.

    Exploding assemblies is also a great way to visualize the assembly process… I’ve seen many designs that required tightening bolts where the nut isn’t accessible.

  3. An old engineer

    Unfortunately, it’s a sad statement that many engineers/designers don’t know to design something from the point of manufacturability. They design it to work within the limitations of the CAD software. It would benefit everyone if they had to fabricate and/or assemble something that they’ve designed.

    Once, I critquited someone else’s structrual design of a large steel weldment. The CAD drawings were acceptable, but the engineer had not considered the residual stresses from the amounts of welding that he wanted to give the part rigidity. I knew that once the part went into the machine shop for finish machining, the part would change shape from the released residual stresses each time a different surface was machined.

    You need to understand the manufacturing process. Not everyone has access to the latest and greatest fabrication equipment. Low quantity production is much different from high volume. Making one of something is much different that making 10,000 of them.

    Any CAD system is just a tool. Yes, you need to understand how to use that tool. Every engineer still needs to use some common sense when he/she designs something. Talk to your skilled machinists, welders, and technicians within your organization and get their input on the design. Otherwise, it may end up being garbage in, garbage out.