This is a replica of the famous knife from Giaco which can be purchased for $39. And you can get it for the some time and 17 grams of filament.
The... main thing is that there are no more covers, which either do not hold well, or you need to look for small screws. Thanks to the absence of lids, the knife has become thinner and lighter. It can be assembled and disassembled without tools. Although for the first assembly, a file or sandpaper will still be useful for you to remove printing artifacts. And it will also be better if you wipe the slip points and the spring with silicone grease.
The experience with my previous knife https://www.thingiverse.com/thing:4747489 helped me a lot and I tried to take into account all the mistakes. Now all parts are printed without support. And if the printer is well set up, you get a very functional thing in just a couple of hours, with a minimum of post-processing.
Attention. In order for the blade to be firmly fixed and there was no backlash, I removed the gaps on the landing grooves. Therefore, the first time the replacement of the blade is carried out with great difficulty. Be very careful when inserting the blade.
Huge respect to Alexey Pavlenko for the idea of adapting the popular knife from Giacomini for printing
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PS
21.03.05 I updated the files of this model. If you downloaded the files earlier than this date, my recommendation is to update them. The improvements are quite significant, in particular:
Fixed the Slider jamming when opening the blade
Extended blade seat to fit most blades from 60 to 62 mm wide
Added a guide to the edge of the Slider, which gives more precise positioning
Increased Trigger pad, now the rear view is more aesthetic
The spring hook is reduced, which makes it easier to move the Slider
Added the ability to lock the blade in the open position only by 15 mm. This can be useful for opening packages. If you need such a feature, print the file - Base+Fix15mm.stl