This is a stronger, more functional and more accurate 3d-printable version of the LTT stubby screwdriver.
You need these parts for the multi color version:
This is the list of parts for a single color screwdriver
The exact magnet you use can be different, you just need to adjust that in the step files.
The strength of the springs are dependent on which material you printed them in, I recommend printing a bunch and trying out to find the best strength.
I have added supports (light blue) to the reinforced direction selectors, these have to be cut before assembly:
If you use PrusaSlicer, make sure the seams are not placed on the edges of the ratchet model, as this slightly messes with the tolerances of the ratchet.
To install the magnet in the bitholder, you need to pause the print and insert the magnet at the correct layer. Make sure to glue the magnet down, since magnets and 3d-printers are both magnetic and a strong magnet might remove itself if you don't glue it down.
This was printed with a Prusa MK3S+ in PETG Prusament, with a different setup your tolerances might vary, you can adjust them all in the respective step files.
These are the magnets I used:
aliexpress.com/item/1005003142278662.html
aliexpress.com/item/1005001707519765.html
The author remixed this model.
Replaced fragile components with widely available screws, that way you can actually screw something in with this screwdriver.
The end cap is replaced with the version from Kilian Herbst, as it seems more accurate to the real LTT Stubby Screwdriver.
The bitholder is redesigned to now store 8 normal sized bits, up from the 5 from the original model.
The bitholder end cap part is way more stable and less floppy, as there is a shaft going through the middle of it. It is now locked in place in the closed position using a magnet, this prevents it from randomly opening and makes using it a lot more satisfying.
I completely remade all of the cad files since there were no real cad files available, only .stl files. I haven't done a perfect job with the handle, therefor I also included a file based on the original model by CheffHD. The cad files are now way easier to adjust and change clearances and so on.
The shaft no longer relies on a metal bit extender but instead is redesigned to also have to space a magnet to hold bits. It is also redesigned to be stronger.
The handle part is split in multiple pieces if you want to print it with a accent color, there is also a file where these parts are connected, this makes it easier to assemble if you want a monochrome screwdriver.
I have made many different springs, as the perfect spring depends on material and printer.
The switch file had some artifact, with it completely redone these are also gone.
Basically I changed everything.