Mr. Finger → Mr. Finger — Nail Training Model, 20 cm

Mr. Finger — 20 cm Nail Training Model

The complete demonstration kit: one oversized finger, five nail shapes that swap in seconds, a magnetic before/after cover and four scaled-up e-file bits on their own stand.

$25 ≈ €22.29

Download the STL files on Cults3D

Personal licence. Print as many as you need for yourself and use them in your own courses. You may not sell the files or sell printed copies.

The concept for Mr. Finger came from @unique_nails_tm.

Who this is for

• Nail technicians who teach, whether one student at a time or a full room.
• Beauty school instructors who need the same prop to survive a term of handling.
• Students and self-taught techs who want to see the geometry at a size where mistakes are obvious.

What is in the Mr. Finger kit

Finger

20 cm tall, with a slot that takes any of the interchangeable nails.

5 nail shapes

Natural, long tapered square, squoval, almond, and short sharp square.

Before/after cover

Magnetic cover for the short square nail. On, it reads as an unprepped tip with product build-up; lift it off and the finished nail is underneath.

4 oversized e-file bits

Flame, ball, fissure (cylinder) for cuticle work, and a large cone for product removal. Each bit prints as three parts: shank with a threaded stud, a coloured grit-indicator ring, and the working head.

Bit stand

Holds the bits upright on the desk.

2 nail file props

One curved (a «banana») and one straight. Each is three parts: a core that prints well in beige or brown for a wood look, and two face plates printed on a textured PEI sheet, textured side down, so the surface reads as abrasive.

Printing and assembly

Materials

PLA, PETG and ASA all work.

ASA warning

Acetone dissolves ASA. Do not wipe ASA parts with acetone-based liquids — the surface goes cloudy or tacky.

Magnets

3 pairs of Ø3 mm magnets, 3–4 mm long. Not included. The holes are already in the parts; if print tolerances make them tight, run a 3 mm drill through first.

Ring colours

The grit-indicator rings can follow the usual code: red fine, blue medium, green coarse, black extra coarse.

Nails

Slide into the slot on the finger. No glue, no fasteners.