A cool little utility blade handle inspired by the Sidewinder mini knife.  Updated  New model replaces the “lock" with a screw for easier assembly.  Redesigned the “lanyard loop” to eliminate need for support material.  Also added better assembly photos.

Prints with minimal supports, use PLA or any suitable filament.

Requires the following additional hardware:

• (5) M3x16mm screws
• (1) M3x6mm screw
• (1) M3 hex nut
• Standard Utility blade

Assembly

• Orient the handle pieces with “top back” and “bottom back” towards the back. These 2 pieces have smaller screw holes to allow you to thread the M3 screws in.
• “top front” and “top back” have an extra hole to accommodate a “lock” screw.  The blade will lock into the shaft of this screw when closed.
• “bottom front” and “bottom back” have indentations to allow for clearance when closing. These pieces form the bottom on the handle.
• When everything is assembled, you should get a nice, satisfying “click” when closing.
• To open, give the thumb lever a pull towards the back, then rotate the halves apart, and and back together again.
• Standard Utility blade is held in place by a captive M3 nut and M3x6mm screw.
• Optionally attach a lanyard to “lanyard loop”.  Print it in red for a nice look.