Online 3d software apps are horrid

[fred_dot_u]

I've learned a new feature in OpenSCAD, to make it easier to place items repetitively and perhaps recursively, although I'm not sure both of those terms apply. What's important is that it was easier.

If my understanding of our exchange of dimensions is correct, the result should match your requirements.

The zip file contains three items. One is lid.stl, a very simple rectangular solid, using the dimensions provided. The other is the enclosure mk3.stl file, including the standoffs placed appropriately. The last file is the OpenSCAD source file, with parametric code to allow you to easily adjust any dimensions as required. I did not include the solvespace diagram I used to clarify the dimensions as I felt it was superfluous in this case, as all the information in the solvespace file is included in the parameters of the OpenSCAD file. If you wish to have the solvespace file, let me know. I tend to never delete project files, even when complete, as some blocks of information can be useful later.

Please let me know if this works for you, or if it doesn't, how you'd like to have it changed, or if you want to know where to change it in the OpenSCAD file to recreate it yourself.

If I could put some real effort into studying the software, I would have possibly easily created this in Fusion 360, another great modeling program, but so much more powerful than anything else I've ever used.

This was a fun project.