I recently stumbled on the "SIG SAUER K320 Inspired Folding Utility Knife" by Trent Studio over on MakerWorld. It looks like Trent Studio has a bunch of really cool box cutter designs, but this one stood out to me. The remix by MarkAdams is also really worth checking out (it has thinner scales and a clip), but is designed for some Coast blades which are non-standard. I didn't want to pay for the Coast blades, but really liked the thinner profile of MarkAdams's remix, so I used his remixed parts with the blade holder from the original design, and it worked well together (shown in the 2nd pic).
I then made a few smalll mods to the original design to tighten up the action, and add some pre-load to the spring. This makes it a bit more difficult to open, but that is my preference. While I was at it, I copied the MarkAdams mod with thinner scales and then added a similar belt clip with the post integrated, so the clip is held in by one of the screws. There were several other small changes, but overall I feel they add very little to a great design (and a really nice remix).
I then made a few smalll mods to the original design to tighten up the action, and add some pre-load to the spring. This makes it a bit more difficult to open, but that is my preference. While I was at it, I copied the MarkAdams mod with thinner scales and then added a similar belt clip with the post integrated, so the clip is held in by one of the screws. There were several other small changes, but overall I feel they add very little to a great design (and a really nice remix).
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