Radial Engine Fidget Toy - Free 3D Print Model

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Mario's Printerion

Education>Engineering

IP Report

GIF

Print Profile(1)

All

P1S

P1P

X1 Carbon

X1E

A1 mini

H2D

H2D Pro

H2S

P2S

H2C

X2D

A2L

0.2mm layer, 2 walls, 25% infill

Designer

3.2 h

5 plates

4.9(10)

Open in Bambu Studio

Boost

197

381

234

Released

Bill of Materials

Maker's Supply Kits and Parts

Select all

M4 Button Head Cap Machine Screws (BHCS)

List other parts

Screw x 1: M4x20
Screw x 1: M4x8
Nut x 1: M4
Screw x 5: M2x8
Screw x 6: M2x12

Description

Nostalgic Tech at Your Fingertips: Star Engine Fidget Spinner

Dive into the era of aviation pioneers with this stunning star engine fidget spinner. The detailed 3D print file captures the elegance and complexity of a real star engine, transforming it into a calming toy for those in-between moments.

Print Instructions:

Material: PLA

Layer Height: 0.2 or 0.16 mm

Supports: Only required for the housing

Assembly instructions:

Instructions:

Attach the Propeller:
- Insert an M4x20 screw into the propeller. (heat up the screw with a lighter or cut an M4 thread first)
- Connect the propeller to the housing.
- Secure the propeller with an M4 nut on the inside.
- Ensure that it rotate smoothly (if not: drill the hole in the housing with a 4mm drill bit)
Lock the Crank:
- Locate the crank near the M4 nut.
- Secure the crank in place.
Connect the Pistons and Rods:
- Attach the pistons to the connecting rods using M2x12 screws.
Assemble the Piston and Crank:
- Insert a piston with its connecting rod into the housing.
- Connect the piston to the crank using an M4x8 screw.
Add the Remaining Pistons:
- Insert the remaining pistons into the housing.
- Secure each piston and connecting rod with M2x6 screws.
- Ensure that all parts rotate smoothly

Enjoy your new star engine fidget spinner!

Comment & Rating (25)

@user_1201271237

Print Profile

0.2mm layer, 2 walls, 25% infill

very good easy to print

(Edited)

@nailuJ

Worked great! M2 screws are hard to find, so instead I took short pieces of filament and riveted them using a lighter

Show original

@Neiljt

Print Profile

0.2mm layer, 2 walls, 25% infill

Nice print, still waiting on parts (store bought)

@3D_Go

Boosted

Print Profile

0.2mm layer, 2 walls, 25% infill

@user_2721903409

All radial engines need an odd number of Cylinders because even numbers (single row) engines will suffer from harmonic vibrations that will destroy the engine. Otherwise, it is a nice looking print.

@user_4046058288

Boosted

its a Fidget Toy, not a working engine....doesn`t matter at all!

@Rcatron

Radial engines are always odd number of cylinders in a row. I can't get mine to work. There is no way to connect the crank so that it does not slip. Needs to be secured. Pretty display model.

@user_4046058288

Boosted

its a Fidget Toy, not a working engine....doesn`t matter at all!

@FEMit160

All the parts printed nicely for me, but I'm having difficultly assembling with the screws. Are the holes supposed to be clearance fit with the M4 and M2 screws or tight tolerance? I.E. are the screws supposed to spin freely within the holes or be super tight (where the holes get tapped when inserting the screw)? Right now all the screws are super tight in the all the holes and nothing will spin. Appreciate any advice. Thanks.

The designer has replied

@printerion

Thanks for your comment. Both are the case! I.E. The M4x 20 screw should fit in the propeller (heat up the screw with a lighter or cut an M4 thread first) but it should move easily through the housing (if not: drill it with a 4mm drill bit). Same with the connection rods... I hope that will help you. May you succeed!

@FEMit160

Replying to @printerion :

Thanks, I think it will work now!

@user_968843849

honestly, the print is great and everything, but I didn’t realize that it is a 6 cylinder engine… it will never work in a stable manner - DONT MAKE THIS PRINT

@user_4046058288

Boosted

its a Fidget Toy, not a working engine....doesn`t matter at all!

@Cal3b0703

Can you make some more moving engines?

The designer has replied

@printerion

Maybe... ;) if i have an idea and inspiration!

@user_2087274460

you need too add a handle to turn it round with

License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.