Karambit sliding knife and fidget toy - Free 3D Print Model

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Adage3d

Tools>Hand Tools

IP Report

GIF

Print Profile(1)

All

X1 Carbon

P1S

P1P

X1E

0.2mm layer, 2 walls, 100% infill

Designer

1.6 h

2 plates

4.9(20)

Open in Bambu Studio

Boost

264

637

392

184

Released

Description

This knife is extremely fun to fidget with and hard to put down. The thumb flipper makes for easy and addictive opening action. Included on plate 2 of the print profile is a plastic bladed version in case you want to use this as a fidget toy only. Depending on which one you build, you will need different hardware.

Parts List

Utility blade version:

4x M3x16mm cap machine screws (others can be used but part is designed to lay flush with this style of screw, link after description)
2x M3x4mm cap machine screws
6x M3 Nuts
1x Standard utility blade
6x 6x3mm Magnets

Bladeless Version

4 x M3x16mm cap machine screws
4x M3 Nuts
3x 6x3mm Magnets (you can use 6 if you want but it is not necessary because there will be no metal blade for the magnet to attract to when the knife is closed.)

Reference the photos for hinge orientation when building. Nuts fit tight in hinge parts and blade side of knife, may require a bit of force to secure. if your having trouble, try flipping the nut around. Be sure to glue the magnets in place and let completely dry before using or else they will come loose. Also make sure that opposing magnets attract and not repel each other.

Printed with 100% infill with supports on. I have painted the few areas that need support in the profile.

Part links

Metric machine screw assortment: https://www.amazon.com/dp/B07K1DV93T?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Magnets: https://www.amazon.com/dp/B0CCXLS8QM?ref=ppx_yo2ov_dt_b_fed_asin_title

Comment & Rating (34)

@KT907b

Printed out nicely and with no issues using standard bbl pla basic. I have put it together using spare M3 screews and locking nuts I had. Came out suprisingly sturdy. No flex at all. Fun to use and play with. Using 6x3mm magnets is an overkill in my case. 6x2 or 5x2 would be plenty strong if they are decent quality. I would put two modifications in the design. #1 Nest magnets maybe 0.5mm deeper in holes to prevent hitting edge of the blade on magnets when closing (depends on blade U have). #2 Modify that thumb spike for opening the blade so it can be olso used to close single handed.

The designer has replied

@Adage3d

Hey, thanks for the feedback! I had the same thought about recessing the magnets across from the blade a bit also. I never thought of modifying the flipper spike though. Probably because the way I fidget with it, you'll see in the .gif that I close it one handed by using the hinge and was thinking of modifying that so it's easier to get a purchase on. That only works when holding it inverted though. I'll definitely be posting mods to this knife as well as other knife designs.

@KT907b

Replying to @Adage3d :

I figured out how to close the blade one handed with my thumb in normal grip. Just need to pull on the hinge that is in most forward position. Can't do it in reverse grip like you do. Magnets I used are too strong 😄

@3D_Design

Boosted

looks great, I printed it with Petg and it works good. it would be nice if there was an easier way to close it, also, it would be cool if you made a sheath for the blade so if it comes open in your pocket or bag it wouldn’t cut you, also great job. 👍

(Edited)

The designer has replied

@Adage3d

All valid points. Thank you, glad you like it!

@Garmer

Print Profile

0.2mm layer, 2 walls, 100% infill

@Sabortoothmoose

Print Profile

0.2mm layer, 2 walls, 100% infill

@user_238404539

hello, I love your knife, but it is impossible for me to print it because the A1 is not compatible could you modify the file so that it is possible to print it with the A1 please thank you

The designer has replied

Show original

@Adage3d

if you just switch your printer in Bambu Studio from Carbon X1 to A1 it should slice and print fine

@user_238404539

Replying to @Adage3d :

ho! ok! I'll try this! thanks

Show original

@Vladamyr

Boosted

fun design.

The designer has replied

@Adage3d

Thank you!

@odfer

Boosted

Print Profile

0.2mm layer, 2 walls, 100% infill

love it

@CastlingChamp

Boosted

Aweosme stufF!

The designer has replied

@Adage3d

Thank you!

@dariusz.d

Print Profile

0.2mm layer, 2 walls, 100% infill

worked but got lost

@user_3753060612

Print Profile

0.2mm layer, 2 walls, 100% infill

Super.

License

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.