OTF Fidget Knife Over-Engineered and Upgradeable

OTF Fidget Knife Over-Engineered and Upgradeable

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Print Profile(28)

All
A1 mini
P1S
P1P
X1
X1 Carbon
X1E
A1

Slim Inflate Pattern G. Must use less warping filaments
Slim Inflate Pattern G. Must use less warping filaments
Designer
2.4 h
1 plate
4.8(339)

Very good handling. Inflate Standard Pattern Random.
Very good handling. Inflate Standard Pattern Random.
Designer
2.7 h
1 plate
4.9(60)

Spring Kit. Multiple specifications in one set. Read desc.
Spring Kit. Multiple specifications in one set. Read desc.
Designer
35 min
1 plate
4.9(37)

Type 3 blade. Always reprint blade with this profile
Type 3 blade. Always reprint blade with this profile
Designer
19 min
1 plate
5.0(16)
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Open in Bambu Studio
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2 k
13.6 k
9 k
Released

Description

Ultimate challenge OTF NANO keychain box opener x-acto.

Boost Me (for free)

Let's interact! Boost me, then DM me to get the handle with cutout windows! 

 

Have a knife day!   Over-engineered OTF. Also good for brenchmark print. Lots of patterns. Fully 3D printed. Upgradeable. Good as gift. Also very nice as comb.

(This is an over-engineered model. Please always print using a print profile and DO NOT try to slice it yourself!)

 

Looking for the right Pro Utility Blade Holder, Xacto, 9mm Nano, 9mm Mini, 18mm, trapezoid? Check my model list. :P

 

 

This accurate model requires printing using the most reliable filament and printer settings. Good as a benchmark testing your machine and filament setup. If you are confident in your settings, you may want to try changing the filament. But you can also try the spring kit set profile. This will, to some extent, force the overturning of certain errors. Please let me know the results. Good luck.

The main problem is warping: The front cut out becomes smaller. The blade failed to catch the spring for ejection. Strongly suggest Liquid Glue in BambuStore. 

Filament issues: The push lever is difficult to move(a common problem with silky), or if the parts need to sanded, this means you need to try a different filament colors/types. 

Installation issues:  The latch lever is oriented in a "V" shape, not an "A" shape. Pull the blade all the way out (reference time 1:06 in the video) and the latch lever will prevent it from returning. Now you can install the top cover.

(Don't blame a model or print profile by giving a low rating. It won't help you to be successful with your next print at all!)

 

 

****No hardware required.  But if you want to use metal spring, here you go the upgrade kit using BA001, BA002

****Based on my experience, not all PLA filaments are suitable for precision printing.

**** Profile well testing using PETG-HF and PLA Basic, Sparkle and Marble. Strongly suggest PETG-HF, especially for the spring. And the PLA Silk Dual Color is not good for this precision print.
****If mixing filament types (e.g. PETG with PLA) for multiple colors, it is best to disable flow calibration.

 

Yet another OTF fidget, Anti-anxiety, ADHD. 

More pattern and print profile to be updated. 

 

Build video link.     

 

 

Total 6 Parts

 

 

Or using optional metal spring upgrade kit.

 

4+1 types of handles

Many patterns (Too busy, to be released. Follow me, stay tuned! And you can always suggest a missing patterns by comment.)

 

Optional Push Buttom. (Indeed I made the button with jimping texture at the very beginning. Over the development time and stress test, that jumping texture really hurt my thumb. So I smooth it out for fidget purpose. Anyway you can try this print profile. :P "Optional Jimping (Textured) Button Upgrade")

 

Blade Type

 

Optional comb blade

 

 

 

 

 

btw. Thumb pain indicates that the OTF is not working properly. You're trying to cover all the print and filament error with your Hulk thumb. A good OTF can be triggered through your pinky finger! 

Someone started a challenge. Speed build in 14s.   https://makerworld.com/community/post/70059 

Let us know how fast you can do in the comment!

 

Don't forget to try my Gravity Knife!

 

 

Good luck and good luck printing!

 

Try my nozzle wiper fix for X1/P1/A1.

A1/A1 mini video link

X1/P1 Wiper video link

Also try this hourglass clock!

Bill of Materials

Bambu Filaments
A00-K0-1.75-1000-SPLFREE
× 1
A00-A0-1.75-1000-SPLFREE
× 1
A00-W1-1.75-1000-SPLFREE
× 1
A00-G6-1.75-1000-SPLFREE
× 1
A00-Y0-1.75-1000-SPLFREE
× 1
A05-T2-1.75-1000-SPL
× 1
A05-T1-1.75-1000-SPL
× 1
A07-R5-1.75-1000-SPL
× 1
Buy Now
Download BOM

Comment & Rating (2548)

Please fill in your opinion
(0/5000)

Print Profile
Slim Inflate Pattern C. Must use less warping filaments
Definitly deserves the title of 'over engineered'. Works absolutely perfect right from the printbed. A really high quality print! Plus, through your designe I learned about the mechanism powering it. So, learned something new, and I have a new gadget. Thanks man 😉
The designer has replied
45
Reply
Just released a pro version. :P https://makerworld.com/en/models/1066910
1
Reply
Replying to @iczfirz :
A practical upgrade! I love it ;)
0
Reply
Print Profile
Slim Pattern D. Must use less warping filaments.
Works great in PLA basic! Printed a couple in PLA Matte and the springs are a little weak so i would recommend printing the springs in PLA basic. Printed a 200% size and it works flawlessly, great file!
GIF
The designer has replied
7
Reply
Do you mind share your gif to the cover photo of this model? btw. 200% mini is definitely adorable. :P
1
Reply
Replying to @iczfirz :
Share away man, i uploaded the 200% profile for you also. i have also done the balisong and gravity karambit in 200% and added pins for the filament holes. i will upload them after work today.
0
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Replying to @iczfirz :
will definitely be doing some minis also 😂
0
Reply
Boosted
is the 3 time that this appena can u explain me why
The designer has replied
0
Reply
have you washed your bed and dried your filament?
0
Reply
Other then wash and dried, try increase first layer nozzle temperature or change filament. :P
1
Reply
Boosted
Replying to @iczfirz :
now i can 3d print it but i can't make it works because when I try too put the blade out it doesn't work
(Edited)
0
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If I could make only one suggestion that would make this model functionally perfect. It needs some traction on the extend and retract button. I find that I am pressing down too hard to keep my thumb from slipping that I am increasing the effort needed to extend the blade. Other than that this is an amazing design and nears perfection.
The designer has replied
3
Reply
Indeed I made the button jimping at the very beginning. Over the development time and stress test, that jumping button really hurt my finger. So I smooth it out for fidget purpose. Anyway you can try this print profile. :P "Optional Jimping (Textured) Button Upgrade"
1
Reply
Well I guess I should have looked closer because I just found the upgraded file
2
Reply
Replying to @user_3146550112 :
And go ahead to the mini as well :P https://makerworld.com/en/models/989128
1
Reply
Could you design a K-sheath?
The designer has replied
Show original
1
Reply
Wow. Time to do the nano otf challenge or metal spring upgrade. Check my model list. :P btw what is K-sheath? Can you give a link or image?
0
Reply
Replying to @iczfirz :
A quick-release sheath of this type, suitable for belt mounting
Show original
0
Reply
Replying to @iczfirz :
This image is more intuitive
Show original
0
Reply
Print Profile
Slim Inflate Pattern G. Must use less warping filaments
Printed as advertised. Works exactly how it should. For best finish I recommend printing on a smooth plate rather than the textured plate, as the "blade" retains the texture of the plate.
The designer has replied
1
Reply
You are good can print on smooth plate. I only can do on texture plate as this is the standard gear and I must proof all my design with it before release. :P
1
Reply
Replying to @iczfirz :
Totally fine. more of a suggestion for other printers who will want to print it. Still an excellent profile even on the textured plate.
0
Reply
Replying to @RC_printsnshit :
btw, for bed adhesion, which one is better? Coz one of the key to success for this OTF is no warping.
0
Reply
Print Profile
Standard Inflate Pattern D. Must use less warping filaments
came out awesome. none of the springs I tried would work at all. I ended up making a shorter version out of petg and it works perfectly now
The designer has replied
0
Reply
Do you mean the spring kit profile?
0
Reply
Replying to @iczfirz :
yes, I tried those as well with no luck. I made one about 1/8" shorter than the shortest one in the kit and that worked. it may just be my filament or something
0
Reply
Replying to @Scuba_Steve85 :
What kind of filament you used?
0
Reply
Print Profile
Default Blade Type 1. Always reprint blade with this profile
Awesome
The designer has replied
1
Reply
Try the nano version. :P
0
Reply
Just released a pro version. :P https://makerworld.com/en/models/1066910
0
Reply
Replying to @iczfirz :
unfortunately not possible as these are illegal in the UK
0
Reply
Print Profile
Standard Inflate Pattern E. Must use less warping filaments
This printed great in sunlu matte black on an A1. if you have issues with friction issues from squeezing a little too hard like I did, rubbing an extremely light amount of parrafin wax under the switch and in the groove where the blade slides made it buttery smooth. (I used a clean part of a candy wax bottle I melted down that I usually use on doors)
The designer has replied
9
Reply
There is a challenge, by the way! https://makerworld.com/en/models/1038053
0
Reply
Print Profile
Standard Inflate Pattern A. Must use less warping filaments
Great file. Needed a little bit of filing and switching of filaments but after that it turned out great. Final was printed in Inland Orange PLA and Bambu PLA-CF. Also lowered the hight size of the blade to .1 and rotated the bridge 90.
The designer has replied
1
Reply
aha I'm wondering why rotated the bridge on blade?
1
Reply
Replying to @iczfirz :
When I printed the first blade the bridges did not support well because of the oval openings near them. By changing it to 90 it forced it to ignore as much of the oval as able and go directly from top to bottom.
0
Reply
Replying to @TragSifarin :
ic. It didn't happen to me so far. Thanks for letting me know. Good luck and happy printing.
1
Reply

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