Handle for Magnetic 1/4" 6.35mm Hex Shank

thingiverse

Here is the rewritten text: I use a handle for my Magnetic 1/4" hex shank, making it a makeshift quick-swap screwdriver that works with hex tips. Specifically designed for the 100mm long version of the magnetic hex shank, this handle provides a secure grip and reliable performance. To print this handle effectively, I recommend using PLA, 0.32mm layers, 0.4mm nozzle, 0.8mm perimeter, 10% infill, and no support. On April 29, 2019, I added the chuckHandle-24mm.stl file to my collection because it uses an M4x6mm bolt and M4 square nut, making it a more reliable connection method. Despite trying various size variations, I have found that this single grip size and connection method is the best. One note of caution: inserting the shank can be tight, so it's essential to insert and remove it several times to get most of the length in and make removal relatively easy. This helps smooth out any print defects and makes removal easier. Once you've done this a few times, you can insert it most of the way and use something to grip the shank with, allowing for comfortable removal. There is a locking mechanism at the last cm or so of insertion, which should still allow you to pull the shank out, but you'll need a good grip on the shank. A strip of rubber or a few wide rubber bands can help get a grip on the shank, or pliers loosely around the shank and behind the chromed connector will provide the required leverage. After a few insertions, they operate quite freely. Lubrication may help, but it may also make it too loose to hold the shank. There is a small hole in the base of the handle that lets air out, which can be useful for inserting a slim rod or nail with the point cut off to help remove the shank if it gets stuck. This design should still work even if you print at high speed and have poor vertical wall quality (as shown in the image), as long as corners are sharp. When printing my models, I always specify 0.4mm external perimeter width in Slic3r because a 0.4mm nozzle typically prints external perimeters at 0.45 to 0.48mm by default. If you don't specify 0.4, you may find that mated parts are too tight and bolt holes don't fit bolts. By specifying 0.4mm external perimeter, I get perfect results: a snug fit. I do this because it makes the math and modeling easier and more precise than needing to add 0.45 to 0.48... divided by two (0.225 to 0.24) to everything.... 0.4 divided by 2 is 0.2, which is simpler.