Bunny Cockie-Cutter

thingiverse

My 2nd successfully created cookie-cutter. Print Settings Printer: DaVinci 2.0A Duo Rafts: No Supports: No Resolution: 0.2 Infill: 90 (full) Notes: I've printed it with 90fill (full), slow speed, 0.2 stepsize, normal wall-thickness and model slices in the XYZware with these settings. Note that slicing should give you a double-wall with no holes. Post-Printing Brushed with Acetone For finishing, I've brushed the printed design with Acetone to prevent delaminating of the layers. This gives the cutter some "glossiness" as well. The Acetone "dissolves" the ABS, so it can be used to smoothen as well as glue it. First time, I've done this, and it seems to work perfectly. Protection: Do wear protective gear and do not inhale fumes when working with Acetone! How I Designed This Done in Blender 2.76 by manually drawing the shape based on a bitmap and using extrude and solidify-modifier plus mesh-cleanup steps. Sliced in XYZware giving double-walls without holes. The ZIP file contains the STL file, but also the resulting 3w file and the original Blender file for modification. Blender Details Start with scene, delete default object (in Edit mode) Add "shape" bitmap in Z-projection (optional) Create vertex loop (CTRL clicking), closed Scale such, that 10 Blender units represent 10mm clean-up loop (add/remove vertices), smooth etc. Duplicate object (in Object mode) to have one for "upper" and one for "lower" part. Extrude (in Edit mode) lower part 3 units downwards Ensure face-normals point outward (Recompute normals if needed) In Object mode, apply "Solidify modifier", no offset, thickness 0.5 Extrude (in Edit mode) upper part 10 units upwards Ensure face-normals point outward (Recompute normals if needed) In Object mode, apply "Solidify modifier", no offset, thickness 0.15 In Object mode, select both parts, then File/Export as STL XYZware slicing Final sliced model (3w file) - GOOD SLICING When slicing the design, the outcome should show a double-wall with no gaps in between. I get this with the before mentioned settings for the STL model as stored. The critical thing here is the "wall thickness" set in Blender. If the wall gets thicker or thinner, the slicing produces not so nice models. See below: Bad slicing. The gaps will reproduce in the print.