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Screw Through Finger – Fool Everyone!

Print Profile(4)

All
A1 mini
X2D
P1S
P1P
X1
X1 Carbon
P2S
A1
H2C
X1E
H2D
H2D Pro
H2S
A2L

Screw prank (Normal)
Screw prank (Normal)
Designer
49 min
1 plate
4.4(41)

Screw prank (Large)
Screw prank (Large)
Designer
1.1 h
1 plate
4.8(6)

Screw prank (Small)
Screw prank (Small)
Designer
37 min
1 plate
4.8(5)

Mini finger hole - just 8mm; High Quality print 0.12mm
Mini finger hole - just 8mm; High Quality print 0.12mm
34 min
1 plate
3.0(2)

Open in Bambu Studio
Boost
1087
2460
142
10
1.6 k
1.2 k
Released 

Bill of Materials

Bambu Filaments
Select all
Iron Gray Metallic (13100) / Filament with spool / 1 kg
Silver (10102) / Refill / 1kg

Description

Description

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Shock your friends, confuse your coworkers, and get reactions every time you pick up a drill!

This 3D printed illusion makes it look like a screw is being driven straight through your finger, without leaving a mark.

 

Designed with a hidden connection, both halves stay perfectly aligned while giving the illusion of a continuous screw passing through your finger. From the right angle, it’s disturbingly realistic.

 

Available in three sizes for the best fit:

 

Small – for kids and smaller hands
Normal – for most adult hands
Large – for bigger hands

 

Print Details:

 

Print profile designed for BambuLab PLA filaments

Print-in-place – minimal cleanup, just remove small supports
Optimized for easy, reliable printing
Works best with metallic or silver-style filaments

 

Printing Instructions:

 

-Let the print cool completely before removing it from the build plate to avoid warping or damage
-Remove the print using a scraper, carefully working under the first layer
-Do not twist or flex the entire model to remove it, as this can cause it to snap
-Gently lift the model, avoid forcing it off while still warm
-Be careful when removing supports, especially around the connector area

-Use small pliers or cutters for clean support removal if needed

 

Finishing Tips:

 

For maximum realism, silver-colored paint will give the best result and most convincing metallic look
Using metallic or silver filament also produces very good results with minimal effort

 

Perfect for:

 

Pranks and reactions
Social media content
Toolbox surprises
Messing with friends and family

Tip: Slightly sanding the surface can help balance realism while still keeping a subtle “printed” look.

BONUS

Print in place - Crazy Marble Fidget Toy V4                                 

 

Print In Place - Smooth Marble Run XL - Fidget Toy


Reverse Marble Run                                                                          

 

Crazy Marble Fidget Desk Toy V3
 

 

Crazy Marble Fidget Toy V2                                                               

 

Smooth Marble run

Comment & Rating (142)

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License

If you want to use this model commercially, please join my membership.
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This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.