Stubby hand drill driver / screwdriver
by EricYoung, published
A different shaped/sized handle from Jasonwelsh's design: http://www.thingiverse.com/thing:30116
I've wanted one of these for a while (they're awesome for cleaning out holes in your plastic parts with a drill bit) and loved Jason's idea of using washers to weigh the driver handle. This one is designed to fit the specific chuck I bought - a Skil brand keyless chuck.
I ended up nixing the 608z bearing and flipping the 'Bearing Nub' cap because I really liked the feel that way.
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Copied/pasted these instructions from jasonwelsh's page and updated them for the T-nut install instead of tapping:
Instructions You will need
Americans 1 inch long 5/16-18 bolt qty of about 2-5 5/16inch washers (depending on the weight you want) 5/16-18 T-nut 608z Bearing Soldering iron
Everyone that uses the Metric System that are smarter than Americans. Yes I am an opressed metric American. 25mm long M8 Bolt qty of about 2-5 M8 washers (depending on the weight you want) M8 T-nut 608Z bearing Soldering iron
For the hand drill you will need the 1/4 chuck adapter found in most hardware stores. Metric people ... hmm have no clue if you have such a thing.
Using the Soldering iron, install the T-nut in the back-end of the Handle as shown in the pictures. The thin support rings at the base should smoosh down from the heat so that the T-nut ends up being recessed a bit from the bottom of the handle.
If you don't know how to install T-nuts and threaded inserts using a soldering iron it's super easy - just look here: http://www.thingiverse.com/thing:30576
Place the bearing and 3 washers on bolt. Screw bolt into handle Place handle nub over bearing
If you want the chuck to be permanently installed on the handle just stick some epoxy inside the hex hole in the handle before inserting the chuck.