Cheap drill battery pack

This is a battery pack for those cheap drills that were produced around 2003 - 2015. Einhell, Defort, Ferm, Challenge, Amtech, ProUser, Speedway, Workzone, Power-G, Boston, Draper, XU1, Trades Pro and Top Craft (maybe Mastercraft) made (or relabeled) them. Most of those drills aren't too bad, but the batteries suck. All of my standard 18V batteries (I have 4 of these machines with 6 battery packs) are on their last breath, so I decided to upgrade them to Li-Ion using 18650 cells.

The files contain the original Sketchup file and the STL for printing. I usually draw stuff that's more functional than beautiful, so go wild on the design if you want to. :)

I got about 8 hours print time at a very strong pace. With less agressive settings I imagine 10 - 12 hours would do the trick.

Grtz Dustin