Craft Knife Grip

prusaprinters

<p>The grip collar on my craft knife perished and disintegrated so I designed a replacement and printed it in TPU. The knife was originally purchased from <i>Hobbycraft</i> in the UK, but I don't remember the brand.</p><p>I printed with a 0.25mm nozzle, 3mm inside &amp; 3mm outside brim, 0.27mm extrusion width, 0.15mm layer height, 3 bottom horizontal shells, 3 top horizontal shells, 3 vertical shells, no crossing perimeters, no retraction, in about 20 minutes. Print narrow end down on the build plate.&nbsp;</p><p>This will print without doing this, but I also post-processed the gcode file from Prusaslicer with Formerlurker's Arcwelder (https://github.com/FormerLurker/ArcWelderLib/releases), which very quickly replaces the linear approximations to curves, made by Prusaslicer using G1 commands, with G2 or G3 arc commands. This produces a faster, smoother, quieter print from a smaller gcode file, and is supported by my Duet2 WiFi controller board and should be supported on Prusa printers too.</p><p>Filament: Esun eTPU 95A hardness</p><p>When fitted, the wider end of the grip is intended to be at the blade end of the knife.</p><p>The knife handle (where the grip fits) is 9.6mm diameter and 30.5mm long. The collar slides on with some resistance, so…</p><p><i>TAKE THE BLADE OUT BEFORE YOU FIT THE COLLAR!</i></p>