Single Edge Blade Holders

thingiverse

UPDATED 2023-08-01: I reinforced the "back" (opposite the finger rest) so the blade stays in place when pushing forward while cutting. Insert the blade in the slot under the finger rest and push it to the back where it will securely stop. MAIN NARRATIVE: These two single edge razor blade holders are identical, except one has raised ridges for better grip and the other has a deep indentation for secure holding - you can choose your preference. They hold standard 40mm long single edge razor blades in place with friction. Print vertically with the finger rest facing towards the table. Supports are not necessary but they can help the finger rest come out smoothly. I designed these specifically for cutting balsa and paper where a DIY enthusiast needs to hold the blade at 45 degrees and press down while cutting with the tip of the blade.