Gravity Utility Knife

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Gravity Utility Knife

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Print Profile(6)

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P1S
P1P
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X1 Carbon
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A1
A1 mini

Utility blade version 0.12mm layer, 3 walls, 100% infill
Utility blade version 0.12mm layer, 3 walls, 100% infill
Designer
3.6 h
1 plate
4.9(88)

Toy blade version 0.12mm layer, 3 walls, 30% infill
Toy blade version 0.12mm layer, 3 walls, 30% infill
Designer
3.7 h
1 plate
4.7(15)

0.12mm layer, 3 walls, 100% infill
0.12mm layer, 3 walls, 100% infill
4.5 h
1 plate
4.8(20)

0.12mm layer, 3 walls, 100% infill
0.12mm layer, 3 walls, 100% infill
3.7 h
1 plate
5.0(4)
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Released

Description

This is my gravity utility knife design. I also made a toy blade if you just want to use it as a fidget toy. If you enjoy the design a like or make would be appreciated.

 

Check out my new Banana Switchblade here.

You can find my other toy knife designs here.

 

Thanks to FormFutura for providing the High Gloss PLA ColorMorph filament used in this post. I especially like the red and black color morph. You can get some for yourself by clicking my affiliate link.

 

You can obtain a commercial license to sell prints of this here.


Instructions
- I recommend printing in a resolution between 0.2mm and 0.1mm
- The only part that needs supports is the handle.
- The video below shows how to assemble the knife.
- When assembling the knife it is important to note the orientation of the flexing slider. Its sides are slanted so it only works in a specific orientation.
- I would strongly suggest using a lubricant on the flexing slider. It will work without lubricant but its action is much smoother when lubricated.
- The threading on the screw is (M8x1.25) and the threading on the knob is (M5x0.8).
- If the threading is too tight try printing the screw and knob individually or scaling them down in the x and y direction.

 

Hardware
- x2 4mm M3 screws, specs linked here
- x2 M3 nuts, specs linked here
- x1 utility blade

 

Printing Orientation

 

 

Disassembled Parts

 

 

Uncut Assembly Video

https://youtu.be/tknsiIjpArY?feature=shared

Comment & Rating (162)

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Print Profile
Toy blade version 0.12mm layer, 3 walls, 30% infill
Printed very well with the toy version. I felt the need to make it… stupid.
The designer has replied
2
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Amazing! You should post the file as remix.
0
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I might. It definitely needs some work as the supports were hard to remove from all of the fingers due to the orientation of it. Also, Id like to make a version that is flipped but with your retaining piece, it makes it a bit tricky. I think I may be able to find a way though.
0
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P.S. I owe you a punch in the arm. 😂
0
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Print Profile
0.12mm layer, 3 walls, 100% infill
I printed in petg and slowed speed to silent after a failed print at normal speeds. opens and closes super smooth. the only thing that could make this better is a pocket clip
1
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A pocket clip is a really good idea.
0
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Replying to @OwenTF :
Pocket clip and somehwere to store an allen key for the hex head would be awesome for ease of swapping blades
(Edited)
1
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Print Profile
Toy blade version 0.12mm layer, 3 walls, 30% infill
flawless
2
Reply
Impressionnant d’efficacité !
1
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Print Profile
Utility blade version 0.12mm layer, 3 walls, 100% infill
Awesome model, the tolerance is very good. The color variation is depends on your creativity. Now I just need to buy some screws to hold the blade haha.
1
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Print Profile
Utility blade version 0.12mm layer, 3 walls, 100% infill
very nice print
1
Reply
I really love the idea of this design but i cant seem to get my blade to slide back in without force :( I have used alot of lube grease etc
1
Reply
very nice, like it
1
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Boosted
This thing turned out so good. Used the profile and it was perfect. Great print!
1
Reply
Great model. Works brilliantly. only problem is I keep using it as a fidget :)
1
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