Razor v5

# Razor v5 # I started with cwills75's "Retractable Razor Blade Utility Knife" which is a remix of the Talon V2 Utility Knife by HallPrecision. I made a series of modifications and I am now satisfied with my 5th redesign. I'm calling it "razor v5". This is now part of my EDC kit. The Razor v5 fits perfectly into my jeans' watch pocket. #WARNING# **Razor blades are sharp, so be careful! If you do cut yourself, do not blame me!** # Features # Some of the features I added, which are important to me: - must fit the serrated razors I use - tip of the blade must not protrude when in the closed position, so I don't cut my jeans or fingers - stronger locking in the closed position - stronger locking in the open position - larger unlocking holes - added a more grippy top surface to slide the blade in and out - two locking blade positions, since I rarely need to cut deeper than a few millimeters. - added a stop position so that the blade should never protrude past the full extended position - decreased slop of the blade as it mounts into the top male piece - re-added a keychain hole, even tho I don't plan on storing this on my keychain - curved unlocking holes so a thumb-nail can more comfortably unlock and retract with one hand # Print Settings # I have not decided which layer height I prefer, but I've gotten good results with 0.12mm, 0.16mm, and 0.20mm layer heights, using a 0.4mm nozzle. I use 100% infill, no supports. I tested with PLA and PETG, and while both work well, I prefer the more flexible feeling of PETG. # Assembly # **Razor blades are sharp, so be careful! If you do cut yourself, do not blame me!** I found it best to test fit without inserting a razor, and slide the male into the female and extract/detract about 10 times until the action is smooth. Then disassemble, and install the razor. # Usage # With good technique and practice, the blade can be opened and closed with one hand. However, I