Retractable Fake Knife – 100% 3D Printed Prank - Free 3D Print Model

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PolyNova

Props & Cosplays>Cosplay Weapons

IP Report

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Print Profile(1)

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P2S

H2S

H2D Pro

P1P

X1 Carbon

A1 mini

H2D

X1E

H2C

P1S

X2D

A2L

prank knife.

Designer

2.6 h

3 plates

5.0(4)

Open in Bambu Studio

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192

166

Released

Bill of Materials

Maker's Supply Kits and Parts

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Lubricant Grease

Bambu Filaments

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PLA Basic

PLA Basic

ABS

Description

Boost Me (for free)

If you like this model please consider a boost!

Magic Knife – Retractable Fake Knife (V2)

A fully 3D-printed retractable fake knife, redesigned from the ground up from v1.
This V2 features a new case, new mechanism, and improved overall design for smoother action and easier assembly. Ideal for April Fools, pranks, or display.

Print Info

Print time: ~2.5 hours
Filament used: ~45g
Parts: 4
Assembly: Quick and simple
Material: Pla for the body - ABS/PETG for the spring

Assembly

Remove all support material before assembly
Leftover support may cause moving parts to stick
A full assembly guide is included below

Important Disclaimer

This is a fake, non-functional knife.

We are not responsible for how this model is used
From a distance, it may look real
Do not use or carry in public places
The spring may wear out overtime please re print a new one when that happens.
The spring will wear out very quick if printed in pla we strongly suggest you print it in ABS

Use responsibly and with common sense.

🙏 Thanks for stopping by!
Hope you enjoy our 3D-models 😊 If anything comes up, we’re always here to help!
Your support means the world 💛

Boost Me (for free)

all boosts are greatly appreciated and go a long way in helping the development of future models! Its also free for you!

Documentation (1)

Assembly Guide (1)

ADDITIONAL INFORMATION (1).pdf

Comment & Rating (25)

@bMissle

Sunlu??!!

The designer has replied

@PolyNova

Sunlu is the filament brand i use to 3D print with most of the time so i just used the filament box to push the knife against as it was the first box i had

@bMissle

Replying to @PolyNova :

don't blame you sunlu's good and cheap

@PolyNova

Replying to @bMissle :

exactly its the most logical choice its a great brand

@yaboyk_dagoat

perfect print had to scale The spring to 85 because it kept getting stuck

The designer has replied

@PolyNova

thanks so much for the feedback -- it really helps! If you’re able to give a boost, it would be hugely appreciated and really helps expand the project further! I'm glad you liked the model!

@yaboyk_dagoat

Replying to @PolyNova :

hey! I would boost but it doesn’t let me

@yaboyk_dagoat

Will the spring still bend if I use PLA

The designer has replied

@PolyNova

The spring won’t last as long but it will still be usable if you print it with pla but you will have to replace the spring more frequently

@yaboyk_dagoat

Replying to @PolyNova :

ok thank you

@theanttt

Boosted

Print Profile

prank knife.

I love this model, can't stop fiddling with it

The profile uploader has replied

@PolyNova

thanks so much for the feedback -- it really helps! If you’re able to give a boost, it would be hugely appreciated and really helps expand the project further! I'm glad you liked the model!

@mkdabthomas

Could you make a holster for this (using it in airsoft)

The designer has replied

@PolyNova

Hello unfortunately i cannot as i no longer have the original CAD files as i lost a bunch of data recently,

@billybeanthe3rd

good but blade sometimes gets stuck

The designer has replied

@PolyNova

thanks so much for the feedback i will try and fix that problem. If you’re able to give a boost, it would be hugely appreciated and really helps expand the project further! Im glad you liked the model!

@ovidiux

Print Profile

prank knife.

The profile uploader has replied

@PolyNova

thanks so much for the feedback -- it really helps! If you’re able to give a boost, it would be hugely appreciated and really helps expand the project further! I'm glad you liked the model!

@CoolPrintzz

Print Profile

prank knife.

The profile uploader has replied

@PolyNova

Thanks so much for the feedback -- it really helps! If you’re able to give a boost, it would be hugely appreciated and really helps expand the project further!

@asae

Print Profile

prank knife.

The profile uploader has replied

@PolyNova

thanks so much for the feedback -- it really helps! If you’re able to give a boost, it would be hugely appreciated and really helps expand the project further! Im glad you liked the model!

No more

License

This user content is licensed under the MakerWorld Exclusive License.

You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.