Utility Knife with long handle

Utility Knife with long handle

This is a modified version of Cabooses very compact utility knife originally published on Thingiverse: https://www.thingiverse.com/thing:450087

Is this thing useful to you?

Don't hesitate to hit the ❤ and show some love. I'm always happy to hear from you in the 🗩 comment section. If you have problems printing my files: tell me in the comment section too!

DISCLAIMER

Do not use this utility knife to harm any living thing or do other illegal stuff! Use for light cutting jobs only. I take no responsibility if you harm yourself or others with this design.

For optimal safety and durability please print as described below!

Updates

• I added a V1 with an recess for your middle finger. This design is much better suited for fine papercutting and crafts in general. At the moment it's just for right handed people. If you want a left handed version, just tell me.
   
• added some basic sheath. It's meant to press two D6mm x 3mm thick neodymium magnets in (and maybe add a drop of glue). It's not for carrying usage but to protect your hands while the knife is on the table or in the drawer...

My version is completely re-created in FreeCAD 0.19 link branch. Files available for download, too!

It prints in around 1.5 hours and has a few very distinct changes made to the original:

1. uses only one M3 screw to fix the blade
2. chamfer allows blade-change without removing the screw
3. longer handle

One thing which annoyed me a bit with the two-screw original is that I have to remove the screws completely to change the blade: Fixed! :)

You'll need one M3x6mm screw (whatever kind), one M3 nut and one M3 washer.

Print Settings

Rafts: Doesn't Matter

Supports: No

Resolution: 0.2

Infill: 25-100%

Filament: PETG, ABS, ASA, PLA+. Pure PLA behaves too brittle in case of failure under stress!

Notes: 

• for print orientation see screenshot! Add rafts or mouse-ears if your prints tend to come loose while printing