I'm there with you. I've found, though, that I can generally modify existing models that are made in OpenSCAD, which is a descriptive plain text language that generates models that can be exported to .STL files. I've also played a tiny bit with TinkerCAD and think I could do some simple things in it and have directly modified at least one or two .STL files using it.
3D printer advice and recommendations
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Re: 3D printer advice and recommendations
Roy
Mark V/510, Mark V/500 with parts for 510 upgrade, bandsaw, jointer, belt sander, DC3300 w/1 micron bag
Sawstop 3HP 36" PCS w/router table insert
Home designed and built CNC router, another CNC router desktop size
CNCed G0704 milling machine
Laser engraver
Way too much other stuff and not enough space
Mark V/510, Mark V/500 with parts for 510 upgrade, bandsaw, jointer, belt sander, DC3300 w/1 micron bag
Sawstop 3HP 36" PCS w/router table insert
Home designed and built CNC router, another CNC router desktop size
CNCed G0704 milling machine
Laser engraver
Way too much other stuff and not enough space