question

Perfect Jeanette, worked like a charm! Thank you! Sorry for my late reply - I was out of office until today.

As I was poking around in the Global Preferences / Environment tab last week, I simply missed that option, which of course was un-checked (therefore limiting the grid to 400x400).

I hit the User Manual to find out more about the auto-expand grid feature, and the screenshot in the manual shows that option "checked", so I can probably assume that's the default in FlexSim. I only noticed it when I deleted my AutoCAD floor in preparation for reusing my model with a different floor drawing.

I suspect that at some point I did disable that auto-expand and forgot about it. Of course in hindsight, the better thing would have been for me to simply un-check "Show Grid" in the View properties (rather than un-checking Auto-expand grid).

If we do decide to disable the auto expand grid in the future, for a particular model, is there a way to specify the limits? I measured 400x400 units when I was looking into it, and that seems to be the default grid size with a new model.

For example if I have a simulation model that occupies a smaller area of a larger plant (like a repair shop 30M x 15M in the middle of a larger 200M x 100M factory). Can I have the grid be 30x15 when auto-expand grid is disabled? That might be a nice way to define the edges of a model, and at the same time give a convenient way of laying things out, as if the floor had tape lines every meter.

So, I might have a 200M x 100M AutoCAD drawing of the whole factory as a Model Background, positioned such that a smaller 30x15 meter FlexSim grid aligns atop the AutoCAD drawing at the location where we are planning a repair shop. I could even drop the Model Background AutoCAD plane by something small like -0.01 in the Z direction to guarantee that the FlexSim grid is always visible (i.e. slightly above it, at 0.0 in Z).

Thanks again,

Mike
Goodyear

Ooops Jeannette sorry, I should probably have added my reply as a Comment (here) instead of an actual Answer below. By the way, there is a survey email shortly following the FlexSim Answers interaction. I first took the survey a while ago (a few months back) when it first came out, but whenever it comes up each time I interact with FlexSim support, it says I've taken it already.

It's probably set in a cookie somewhere.

No biggie - you guys give great technical support (and have for years) and that's what matters.