Ultimate Allen/Hex Key Screwdriver

thingiverse

Hey guys, this DIY project was born out of necessity when my trusty hex bits broke. Not having a spare set to fall back on, I decided to create one myself instead of breaking the bank. A good quality hex driver set can easily cost upwards of $30 or more, but with this hack, you could bring that price down to just $1 per driver. I haven't extensively tested every file, so if there's anything amiss, please let me know! I'm planning on adding various new handles, and if you have a specific type in mind, feel free to suggest it - I'll be happy to add it! This design is compatible with: * Metric: 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 5.5, 6.0 * SAE / Inch / American: 1/8, 1/16, 3/16, 3/32, 5/32, 5/64, 7/32, 7/64, 9/64 Note that I've used left-handed screw threads for this project. The handle features a pilot hole, allowing you to use any screw to secure the "Holder" parts against the handle - I personally used an M3x10 button screw. If you opt for a thumb screw on the handle, you can enjoy interchangeable keys! However, be aware that your printer may require a nozzle smaller than 0.4mm to print the 6mm key and the 9/64 key. Printing Tips: * Flip the "Holder" files 180 degrees and add supports that only touch the build plate. * Rotate the "Ring" files 180 degrees - these files don't need any supports. * Print the handles upright with no supports. * Keep in mind that my parts have a tolerance of +0.3mm from true measurements, which worked perfectly for my Anet A8 printer. Interpreting the Files: * The screwdriver is composed of four pieces: "Holder" (2 halves), "Ring", and handle. * Each file corresponds to the size of the key you want to use it with. * The "Holder" is made up of two pieces, labeled "L" or "R" to distinguish them. Example: If you have a 1.5mm hex key, you'll need to print "Holder_1.5mmL", "Holder_1.5mmR", "Ring_1.5mm", and your chosen handle. Print Settings (What I used and recommend): * Nozzle diameter: 0.4 mm * Material: PETG plastic (any plastic will do) * Infill density for the handle: 40% with 3-layer walls * I highly suggest 100% infill for the "Ring" files and at least 40% infill on the "Holder" files