Ibook G3 battery pack
Oh, found another one, this one is tricky to print, and im not 100% happy with it but it is the Ibook G3 battery pack shells, i have assembled a pack like this and it does all fit, but it is not as strong as i want it to be.
i forgot the STP file there, so i have added it. IPT is for inventor
Hmmm.... The Mac version doesn't want to let me import STP...
If you cannot create an STL file (which all modern Macs support on the OS level), then perhaps you could post it to Printables, since that site has a built-in viewer, as you can see in this example...