October 15, 2021
Description
you can print layers with different color or layout with nail polish and sand after - color will stay in grooves.
For sewing a 3-hole you need to enter each hole twice start from behind.
Δ1⇒∇2 ↦Δ3⇒∇1 (⇒ = thread on top of the button / ↦ = thread behind tissue
∇1↦Δ2⇒Δ3↦∇1 then secure thread and knot
License:
Creative Commons — Public Domain
Jack
