Double Action OTF Knife/Comb by Asdfgasdfg

Asdfgasdfg

Toys & Games>Other Toys & Games

GIF

Contest Winner

Fidget Toys Design Contest

Print Profile(10)

All

X1 Carbon

P1S

P1P

X1E

A1 mini

0.2mm layer, 3 walls, 15% infill

Designer

6.1 h

2 plates

4.6(455)

[UNTESTED] - A1 MINI - 0.2mm layer, 3 walls, 15% infill

Designer

6.1 h

2 plates

4.5(68)

0.2mm layer, 5 walls, 50% infill, Strong, Stock speeds

2.8 h

2 plates

4.6(35)

print by objects - assembled - bambu lab knife - 0.2mm layer, 3 walls, 15% infill

1.9 h

1 plate

4.6(21)

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Boost

1822

2933

859

8 k

6.3 k

Released

Description

Be careful downloading prints called “Fast” etc, those might be faster but that's because of a weaker design, they are spammers just taking the original profile, lowering the integral strength to get it to print faster, and as explained below, there needs to be a balance in the force of the spring and the rubber band. Those profiles might not work as well as intended. Its just spammers racing to the bottom, give them enough attention and soon there will only be profiles with 1 wall and 2% infil thats printed in 5 minutes but falls together if you look at it long enough.

Double action OTF fidget toy for the fidget toy design competition.

All you need is plastic and a rubber band!

If you like the idea but dislike the design bookmark the model and visit it after the competition is over and I will release all the source file so you can easily modify the body or blade/comb!

Assembly instructions:

NOTE: For the double action to work you need to have a balance between your rubber band and the springs holding the blade. You can use the strongest rubber band you can find and it wont really matter, but the switch will be harder to push. So you might want to try around with different rubber bands or different materials for the springs. If the switch is to hard for your liking, your rubber band is to strong. If the blade/comb does not fully extract or retract, your rubber band is to weak or your springs are to stiff.

How it works:

Comment & Rating (859)

@SIR_PRINTSALOT

Print Profile

0.2mm layer, 3 walls, 15% infill

scaled up %250 after the %100 was so successful, this is just so cool on so many different levels

The designer has replied

@Asdfgasdfg

Lmao, looking great. Are you using a bicycle tire for rubber band? ;)

(Edited)

@Trafford

Replying to @Asdfgasdfg :

maybe op has really small hands lmao

(Edited)

@SIR_PRINTSALOT

just 3 regular rubber bands 😂

@williamandersen

love the design, but Can you make it for bambulab A1 mini? Thank you!

The designer has replied

@Asdfgasdfg

Unfortunately I don't have an A1 so I cant test it to make sure it works. There was another guy here who said it worked on the A1, @wulexing, I asked him if he could upload a profile for the A1. If he doesn't you are more than welcome to upload a tested profile :) I can try uploading one now but as I said I cannot test it, but I will use the same settings so hopefully it will work.

@Asdfgasdfg

I just uploaded a untested A1 mini profile, "[UNTESTED] - A1 MINI - 0.2mm layer, 3 walls, 15% infill" Please verify if this works and feel free to post a picture I can include as proof of it works, or else I will have to remove it after your done printing.

@misfitz3dz

Replying to @Asdfgasdfg :

im testing A1 profile now

@Doommaster437

Print Profile

0.2mm layer, 3 walls, 15% infill

can't get it to work

(Edited)

The designer has replied

@Asdfgasdfg

what part of it?

@thelunatikk

try another rubber. i had to use 2 rubbers. also it has to be assembled and no gaps should be visible or the spring mechanic wont work correctly

(Edited)

@Doommaster437

Replying to @thelunatikk :

ok thanks

@user_975025496

Where did the one on the left come from?

The designer has replied

@Asdfgasdfg

what do you mean? rubber band is non printed, get from wherever you get rubber bands. flat springs are printed, the round plugs are just regular unprinted filament straight from the spool.

@user_975025496

Replying to @Asdfgasdfg :

But how to fit it

@yusuffles

Replying to @user_975025496 :

its a press fit meaning the hole is tighter than the filament itself so it holds it with friction

@MarFounet

Print Profile

0.2mm layer, 3 walls, 15% infill

Great print. Thanks to you, it's work perfectly

@c_dub4891

Print Profile

Knife only, 0.2mm layer, 5 walls, 50% infill, Strong, stock speeds

Looks and functions well. There were spots in the print for alignment pins but none in the print file not sure what happened there.

(Edited)

The designer has replied

@Bottega.co.nz

Boosted

In the model description, there are instructions to cut and use filament, I hope that solves your issue and maybe deserving of 5 stars 🌟 🙂

(Edited)

@c_dub4891

Replying to @Bottega.co.nz :

Missed that lol changed it to five stars !

(Edited)

@Christopher907

Print Profile

0.2mm layer, 3 walls, 15% infill

works as it should, snaps together nice and tight. this is a fantastic little print.

@zionhuang

Print Profile

0.2mm layer, 3 walls, 15% infill

need to find a good rubber band to make it work good. it's such a good model to help understand how the mechanism to work

The designer has replied

@Asdfgasdfg

Yes absolutely, although the real knives don't work in the exact same way, what I found they use springs in the middle of the slider instead of a rubber band around it, as well as a more sturdy locking mechanism. But the core principle is the same. Kinda wish I hade one of those desktop CNC's so I could make a real one :)

@Thor76

turned out great so far

(Edited)

The designer has replied

@Asdfgasdfg

Nice, did you find a fitting rubber band? Was a bit worried rubber bands were gonna be the problem. I tried to make it work with multiple bands, maybe worst case people can take one band and loop it around twice to get some more spring in to it. Or I will have to scale it up a bit maybe, add 3 different lengths, like 10cm, 11cm and 12cm or something. That way everyone would be able to find a rubber band right?