4xAA Battery holder

I found mrbenbritton's design (#119847) very nice and practical.
needed one for my project, but didn't want to wait weeks to buy it from AliExpress, despite it being cheaper to buy.
The original was too delicate for my taste and fell apart under my "All thumbs" hand.
After giving up trying to import the SCAD file to SolidWorks using FreeCAD, I designed it from scratch and made it beefier.
I am new to all this, so I am including the SW2013 part file, STEP and IGS files for those who don't have SW but can import other formats.
Go at it and have fun!