Simple Parametric Drill Holder [No Supports]

This was built around Craftsman tools but should work fine for other analogous brands by adjusting the parametric file.

Print Settings

.6mm nozzle at .32mm layer height. 

3 perimeters for both vertical, top, and bottom. (Go higher for more strength)

20% infill grid. (Go higher for more strength)

Make sure you flip the model in your slicer, the flat part with holes should be on the bed:

Materials 

They were printed in PETG. ABS or ASA should work just as well or better. Probably wouldn't recommend PLA.

Model Considerations

There will be noticeable slight bowing on the sides for larger versions (ex: Impact Wrench). It makes it more difficult to mount flush side by side, but it doesn't affect load bearing so just leave a gap if mounting multiple like pictured.

Depending on the bridge length, there will be some overhangs drooping. Make sure the printer can do gaps of at least 30mm. Clean up the bits that stick out if you like, but I just left it since it doesn't affect anything and isn't visible.

Mounting

Mount it however you like. I used random drywall and self-tapping screws to mount into a plywood shelf in my garage. 

Current Versions

I made 3 pre-baked versions for my specific tools. Here are the parameters in case they fit other tools:

Craftsman CMCD700 or CMCD710 Drill:

Craftsman CMCF940 Impact Wrench:

Craftsman CMCF810 Impact Driver:

Possible Future Improvements

Create parametric scalable cutouts to save on filament and print time while not affecting strength

Create lip on the bottom edge so the model can be reliably printed vertically increasing the strength significantly. (Layer lines should be parallel to force for best performance. Biggest flaw with the model so far)

Redesign bridge for more reliable printing and less overhang

Create ribs to eliminate bowing with minimal added material. Ribs shouldn't interfere with getting tool in and out