Finger Slinger - Print In Place Spinning Fidget


Print Profile(2)

Finger Slinger - Dual Color
Finger Slinger - Dual Color
Designer
X1 Carbon, P1S, P1P, X1, X1E, A159 min
5.0
0.2mm layer, 6 walls, 25% infill
0.2mm layer, 6 walls, 25% infill
P1S, P1P, X1, X1 Carbon, X1E, A146 min
3.8

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Description

Design

This fidget has similar characteristics to a butterfly knife, but in a simple, smooth, and forgiving package. It's designed to print in place with zero supports, and has two weight options depending on how “slingey” you want it to be.

Printing

Resolution: .2mm

Walls/Perimeters: 3-4

Infill: 20%

Supports: nope

Weights

Some weight is required to give the Finger Slinger momentum, so there are two options.

  1. Printed Weight: A cool looking insert that provides great balance and agility. (print at 100% infill)

 

  1. Skateboard Bearing: For insane performance and crazy speed, a 22x7x8mm bearing can be used.

 

Freeing the Fidget

To break the model loose, follow these steps:

*don't be afraid to use a bit of force

 

First, give it a slight bend until the arms pop away from each other:

 

Then push the top arm out to free the bearing:

Notes

Both weight options should press fit nicely into the top arm, but a little glue isn't a bad idea if they seem loose.

Scaling: My hands are on the bigger side, so the fidget may be a little large for some people. If you need to scale it up or down, +/- 20% is the threshold before tolerances get messy.

I'd love to hear feedback on this design and continue developing it, so let me know what you think!

 

 


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Comment & Rating (42)

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Print Profile
0.2mm layer, 6 walls, 25% infill
Fun to play with. I got a pretty poor surface on the bottom of the shorter piece that prints on top of the longer section. I don't know what I could do to fix that. The weight is a bit loose, it does stay in but I would glue it if I used it more.
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Print Profile
0.2mm layer, 6 walls, 25% infill
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How big do you suggest I make it for a 13-year-old boys hands?
The designer has replied
1
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The unscaled size fits almost everyone's hand pretty well. My advice would be to print one without scaling, and if it's too big, try scaling down to 85-90%.
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how big if an bearing do I need
The designer has replied
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The bearing is optional, but a 608 or 8mm x 22mm x 7mm is used.
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Print Profile
0.2mm layer, 6 walls, 25% infill
The underside of the top piece wouldn't print cleanly
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That's a side effect of the print in place design. No assembly required, but the underside isn't super clean. There are several remixes on Printables that solve this problem if you're interested: https://www.printables.com/model/515557-finger-slinger-print-in-place-spinning-fidget/remixes
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Print Profile
0.2mm layer, 6 walls, 25% infill
skibidi
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Print Profile
Finger Slinger - Dual Color
The models are printed by object there is only one filament change and it came out great
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Print Profile
0.2mm layer, 6 walls, 25% infill
print failed but I only tried once
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0.2mm layer, 6 walls, 25% infill
Good
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Print Profile
0.2mm layer, 6 walls, 25% infill
printed two on the same plate and both came out terrible.
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