It is ergonomic thimble (finger guard)
It fits finger rather well, as it is not round in cross-section (similarly to most fingers)
It has:
-dimples
-concave top to push needles
-ring guarding somewhat from slippped needle injuries
-ribs inside to stay on finger
Edit:
Added Japanese inspired Ring Thimble
Ergonomic Safe Thimble + Japanese Style Ring Thimble
by Niuthon · original on Printables ↗
Household / Other House Equipment
♥ 498⬇ 1.8k🖨 24 prints
Print profiles
Ergonomic Thimble.stlDEFAULT
⏱ time and weight estimated after preparation · 1 material(s)
Made to order: we prepare this file when you order, which adds a few minutes before printing starts.
Prints on: A1 mini 0.4PLA
Order this print
Ring Thimble.stl
⏱ time and weight estimated after preparation · 1 material(s)
Made to order: we prepare this file when you order, which adds a few minutes before printing starts.
Prints on: A1 mini 0.4PLA
Order this print