GUN – Gravity Utility Knife V1.1 3D Printer Model Free Download

Description Files (36)

Summary

Inspired by the Reate Exo-U i did my own attempt on a grivity knife.
This might be work in progress, so possible that there will be further versions.
My original Design is for use with M2x2 heat inserts, but i also added a version for M2 nuts (untested)
Prints without any support.
For the stopper of the bladeholder its possible to use a M2x4 heat insert instead of 2x M2x2.
All holes facing the buildplate but don`t touch it having a 0.2mm layer to bridge the hole before printing on it. These has to be drilled/cut out afterwards.
Handle parts printing upright. Inner handle facing bottom to buildplate, outer handle facing top to buildplate.
Recommended to print with strong material. Printed mine with PETG-CF.
Use at your own risk! I'm not responsible if you hurt yourself with this.

STEP included, feel free to remix.

Update 1: Added the file "GUN-PrintOrientation.3mf" where i placed all objects like i printed them without support.

Update V1.1:
Added some BladeCover and also a BladeHolder with a longer cutting edge.

BOM:

Heat Insert Version:
- 6x (7x with V1.1 Parts) M2x2(L)x3(OD) or 4x/5x M2(L)x2(OD) + 1x M2x4(L)x4(OD) Heat Inserts like this one: https://de.aliexpress.com/item/1005006071488810.html
- 1x M2x14 Screw
- 3x M2x5 or M2x4 Screw
- 2x M2x3 Cylinder Head Screw
Nut Version:
- 5x (6x for V1.1 Parts) M2 Nut
- 1x M2x14 Screw
- 1x M2x12 Screw
- 1x M2x5 or M2x4 Screw
- 2x M2x3 Cylinder Head Screw

Instructions:

Parts you need to print:

1x InnerHandle
1x OuterHandle
1x HandleTube
1x Button
You have to choose if you want the M2x5 Version or the M2x4. Original design is the M2x5
1x LockBlock
1x Bladeholder
There are different Versions – Bladholder.stl/.obj is the classic one, which you can also use without the Bladecover
BladeHolderV2.stl/.obj has a third Screw for the Bladecover.
Bladeholder-Long-Edge.stl/.obj is like the V2, but with a longer cutting edge of the blade.
1x BladeCover
There are different Versions, corresponding to the choosen BladeHolder. Each of them also as “clean” Version without the “GUN” imprint.
2x SlideStopper
Here you can choose again between M2x4 or M2x5 for the heat insert version. For nut version you need 1x M2x5 and 1x M2x12_Nut

Assembly:

The parts with holes facing the buildplate but dont touch it have a 0.2mm layer for bridging the hole. This has to be drilled or removed in some other way first. But this is only the case for all versions of the BladHolder and the LockBlock_Nut.stl/.obj

After that, if you printed the heat insert version, you have to insert them now.

1x M2x2 for the OuterHandle
1x M2x2 for the LockBlock
4x M2x2 for the classic Bladeholder or 5x M2x2 for V2 and Long_Edge
You can also replace those 2x M2x2 hert insert for screwing in the SliderStoppers with 1x M2x4

Put the parts together:

Insert the LockBlock to the slot from the inside of the OuterHandle and screw the button to it.
Insert the HandleTube in the hole in the bottom of the InnerHandle
Slide the InnerHandle and OuterHandle together and insert the screw at the bottom. This might need a bit of force, because there are some extrusions to the inside of the InnerHandle to prevent it from opening more then needed. Also make sure the lock is in open position.
Open the Handle, insert the BladeHolder and screw the SlideStopper to it.
Now you just have to screw the Blade and BladeCover to it.

BladeCover-Long-Edge-clean.obj	211.7KB
BladeCover-Long-Edge-clean.stl	87.0KB
BladeCover-Long-Edge.obj	291.3KB
BladeCover-Long-Edge.stl	116.7KB
BladeCover-V1-clean.obj	128.5KB
BladeCover-V1-clean.stl	53.8KB
BladeCover-V1.obj	207.2KB
BladeCover-V1.stl	83.5KB
BladeCover-V2-clean.obj	210.1KB
BladeCover-V2-clean.stl	86.4KB
BladeCover-V2.obj	288.6KB
BladeCover-V2.stl	115.7KB
Bladeholder-Long-Edge-Nut.obj	273.5KB
Bladeholder-Long-Edge-Nut.stl	107.6KB
Bladeholder-Long-Edge.obj	300.2KB
Bladeholder-Long-Edge.stl	120.5KB
Bladeholder-V2-Nut.obj	275.7KB
Bladeholder-V2-Nut.stl	108.3KB
Bladeholder-V2.obj	289.2KB
Bladeholder-V2.stl	116.5KB
Bladeholder.stl	102.6KB
Bladeholder_Nut.stl	73.5KB
Button-M2x5.stl	169.5KB
Button_M2x4.stl	169.8KB
GravityKnife.step	1.4MB
GravityKnife_V1.1.step	2.3MB
GUN-PrintOrientation.3mf	265.3KB
HandleTube.stl	153.0KB
InnerHandle.stl	100.1KB
LockBlock.stl	124.0KB
LockBlock_Nut.stl	99.6KB
OuterHandle.stl	204.3KB
OuterHandle_Nut.stl	205.5KB
Slidestopper_M2x12_Nut.stl	135.8KB
Slidestopper_M2x4.stl	151.1KB
Slidestopper_M2x5.stl	172.0KB