**Support My Work**
If you appreciate my designs and would like to support my work, or if you're interested in purchasing individual models instead of a subscription, here are some options available:
Cults3D: [Purchase individual models here](https://cults3d.com/en/users/fulv/3d-models)
Thank you for your support! If you have any questions, feel free to reach out.

### Fairground Carousel Model Overview

**Introducing the Fairground Carousel!**  
Inspired by childhood memories of vibrant fairgrounds, this model captures the joy of classic carousels and functions as a delightful lamp.

#### Key Features:
- **Mechanical Functionality:** The carousel rotates, and the horses go up and down, mimicking a real merry-go-round.
- **Lighting Options:** Easily incorporate LED strip lights or a USB ToolMoon light bulb to illuminate the carousel beautifully.
- **Color Change Capability:** Designed to utilize color changes in your slicer, whether you’re using a single extruder or a multicolor printer.

#### Printing Details:
- **Support-Free Printing:** All parts are printable without support material and require no painting.
- **Assembly Instructions:** Comprehensive assembly instructions and a detailed PDF document are included.

**Model Specifications:**
- **Fully Assembled Size:** 
  - Diameter: 209.2mm (8.2in)
  - Height: 309.0mm (12.2in)

#### Build Plate Requirements:
- **Minimum Size:** A printer build plate of at least 210mm x 210mm x 151mm is required to print all parts as designed.
- **Scaling Option:** If your printer is smaller, you can scale the model down to about 12%. Note that this may affect clearances and details.

#### Glue Recommendation:
- **Recommended Adhesive:** Use NANO GLOOP for PLA, which provides a clean application with no mess.

#### Special Offer:
- **Discount Code:** Use code **FULV** at [3DGloop](https://www.3dgloop.com/?partner=FULV) for a 10% discount on your order. Consider purchasing multiple NANO bottles for this model.

If you have any questions or need assistance, feel free to reach out! I’m here to help. Enjoy bringing this joyful carousel to life! 🎠✨

Carousel Lamp with Mechanical Movement

fd -BASE -v01.STL

This is a fully functioning 3D printed grandfather clock.  Using mainly 3D printed parts, this clock was specifically engineered to be assembled in minutes, and can run for over 6 days on a single winding. With a little bit of tuning, it can accurate keep time with that classic tick-tock sound.

The video below shows how easily this clock can be assembled 

**The STL File:**

Prints on all standard 3d printers without supports, requires the following additional parts to assemble:

- 21 M4x12| 11 M4x20 Screws (https://amzn.to/3zgQb8f)
- 23 M4 Washers (https://amzn.to/3E1crFU)
- 17 624Z 13mm OD/4mm ID Bearings (Like these https://amzn.to/3DtUUpH)
- 1mm Nylon String or Fishing Line (I used string from this set https://amzn.to/3DtUUpH)
- 5 pounds of weight - could be ball bearings or a dumbbell (I used one from this set https://amzn.to/3zfVKUy)

**Recommended print settings:**

Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-20% 
Material Required: ~650g (Printed in PLA)
Minimum Build Plate Required: 180x180mm


**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!

The 3D Printed Wall Clock

0 Entire Part Layout (For Planning).stl

**Multi-stage compound gearbox with sequential gear reduction.**

The input gear with a radius of **4.75 mm** drives the first compound gear with a radius of **14.75 mm** on one side.

**_Each intermediate gear is a single solid part with two different radius:_**
- 14.75 mm on one side (driven side)
- 4.75 mm on the opposite side (driving side)

The large side of each compound gear is driven by the previous stage, while the small side drives the next stage.

This principle is repeated through all intermediate stages of the gearbox.

The first gear is a single 4.75 mm input gear, and the final gear is a single 14.75 mm output gear, without a secondary driving section.

**_All Paid STL's in 1 subscription_** - [https://patreon.com/ro_qd](https://patreon.com/ro_qd)

This design provides step-by-step speed reduction and torque multiplication in a compact and mechanically rigid structure.

With **_each stage, rotational speed is reduced by approximately 3.1×_**, while output torque increases accordingly.

The final large gear transfers motion to the central output shaft.

The gearbox is designed for smooth operation, stable alignment, and reliable power transmission.

Optimized for FDM 3D printing and DIY mechanical projects.

⸻

**Technical Specifications**

**_Gear radius:_**
- Input gear: 4.75 mm
- 3 compound gears: 14.75 mm / 4.75 mm (single-pieces)
- Output gear: 14.75 mm

**_Single-stage ratio:_**
- ~3.1 : 1

**_Multi-stage ratio (4 stages):_**
- ~93 : 1

**Recommended use:**
Robotics, camera rigs, motorized sliders, experimental mechanisms, custom automation.

**My projects:**
[My projects](https://roqd.one)

**Follow me on social media:**
[YouTube](https://www.youtube.com/@ro_qd)
[TikTok](https://www.tiktok.com/@rob.qd)
[Instagram](https://www.instagram.com/rob.qd)
[X](https://x.com/rob_qd)

MULTI-STAGE COMPOUND GEARBOX 93:1 | HIGH TORQUE SPEED REDUCER

GearBox.stl

The definition of chaos is complete disorder and confusion- this sculpture features a triple pendulum which devolves in to a chaotic movement when you start moving it side to side. Using paddles connected to rack and pinions, you can control the chaos by pressing on the paddles. 

The STL File:
Prints on all standard 3d printers, requires no additional tools or assembly. This video shows how to assemble it!
https://youtu.be/GuIfRCekvZI?si=Epl9jBimZcqmcq4M

Recommended print settings:
Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Print Time: ~10 hours
Total Material: ~200g

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!﻿

The Triple Pendulum Chaos Creator

Full Build (10h - 200g).stl

This is the escapement powered by Bob, the humble escapement operator.  Bob is the one responsible for adding a pulse to keep the pendulum swinging, as well as triggers the advancement of the escapement wheel. This is my take on this escapement designed by dgreene909 

Here is the video that shows how easily this mechanism can be assembled!
https://youtu.be/3lrOB2xOD-U?si=G2IuRQe3FXeFsXqi

The STL File:
Prints on all standard 3d printers without supports, requires the following additional parts to assemble:

- 8 M4x12 Screw (I used https://geni.us/Sf5DpA9)
- 6 M4 Washers (These are the ones https://geni.us/tBNZNg)
- 4 624Z 13mm OD/4mm ID Bearings (These work great https://geni.us/lYZB)
- 1mm Nylon String or Fishing Line (I used string from this set https://geni.us/10HpwLY)

Recommended print settings:
Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Filament Required: ~145g
Minimum Build Plate Required: 200x200mm

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!

The Walking Bob Escapement

Build 3 - 7.5h - 53g.stl

Something as simple as keeping count is easy to do in the digital space.  Before computers and the digital age, however, we used gears and other mechanical components to achieve things such as keeping count.  This is a 3D printable adaptation of a really cool mechanical device that is becoming increasingly obsolete in modern times. It can go from 0-999 in both increasing and decreasing counts!

This download includes all of the STL files needed to print your own Mechanical Counter and requires no additional tools for assembly.

Watch this video to see how easy it is to build this yourself! 
https://youtu.be/WnH5V8f5vRU?si=cqY8aSOHjADn4l8m

Recommended print settings:
Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18%
Total Filament: ~0.375kg
Largest Part Size: 141x90 mm

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!

The Mechanical Counter

Number Disc Middle.STL

Is it digital, or is it analog?  Well it's some combination of the two! The rack driven 7 segment display is a fully 3D printed mechanical desk piece that is equal parts satisfying and bewildering.  Turn the top dial to rotate a series of 14 cams which push on a rack and pinion system to reveal a number.  Operate is manually, or add an optional servo motor to the back and have the thing run on it's own.

You could even throw 4 of them side by side to create a clock!  Add another two and get the seconds.  Give one a randomized number generator and it becomes a dice!  Endless possibilities!

The STL File:

Prints on all standard 3d printers, requires no additional tools or assembly, and assembles in seconds.
For servo attachment (not necessary), it used these servos: https://geni.us/G8ArjNg

Recommended print settings:
Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Material: ~190g

Can print on any sized 3D printer.

Rack Driven 7 Segment Display

Build 2 - Cams and Housing - 125g.stl

Rack Side (x4).stl

Top Plate.stl

Detent.STL

Cam (Larger Clearance)_Bottom Inverse.STL

Cam (Larger Clearance)_Bottom Left Inverse.STL

Cam (Larger Clearance)_Bottom Left.STL

Cam (Larger Clearance)_Bottom Right Inverse.STL

Cam (Larger Clearance)_Bottom Right.STL

Cam (Larger Clearance)_Bottom.STL

Cam (Larger Clearance)_Middle Inverse.STL

Cam (Larger Clearance)_Middle.STL

Cam (Larger Clearance)_Top Inverse.STL

Cam (Larger Clearance)_Top Left Inverse.STL

Cam (Larger Clearance)_Top Left.STL

Cam (Larger Clearance)_Top Right Inverse.STL

Cam (Larger Clearance)_Top Right.STL

Cam (Larger Clearance)_Top.STL

8mm C-Clamps (x6).stl

Central Clock Connector.stl

Dot Centres.stl

Dot Outlines.stl

Base Piece (For 2 Side by Side Modules).STL

Central Counter Connectors (to connect base pieces together).stl

Sometimes we humans need to build machines with the sole purpose of demonstrating the effects of gravity on a steel sphere. This is a machine that happily fulfills that purpose.   Be mesmerized by the combination of engineering and physics resulting from the simple motion of turning a gear.  Watch as the steel ball bearings gain potential energy as they're being lifted by the big wheel, only to be converted to kinetic energy as they roll around the well and tumble back to the bottom.  Be amazed by the fact that this whole thing is 3D Printed.

This download includes all of the STL files needed to print your own Gravity Well desk sculpture and requires no additional tools for assembly. This piece will bring you some needed meditation reminding you that there is order in the universe after all.

You will need to purchase 1/2" ball bearings (or 12-12.5mm) which can be found here:
https://geni.us/halfinchBallBearings 


Recommended print settings:
Layer Height: 0.2mm (All Parts except Well) | 0.1mm for Well 
Nozzle: 0.4mm

The largest file size is the dish, which is 205mm x 205mm.  All the files have been pre-oriented to save you some set up time. 

The Gravity Well

Base.STL

A fully 3D printable version of The Toronto Strandbeest, inspired by the huge one I made for a Youtube video (See below).

Based off the original invention by Theo Jansen, the Strandbeest is a mechanical walking creature that harnesses the power of the wind.  This particular version uses a large 3D printed rotor at the back.  The power from the wind is transferred through a gear box and to the main shaft that drives each leg module.

The Toronto Strandbeest is capable of walking completely on its own.  It can also sit comfortably on its display stand (included in the STL package) so you can watch the walking mechanism do it's thing!

The STL File:
Prints on all standard 3d printers, requires no additional tools or assembly, and assembles in seconds.

This video below shows you how to assemble this beest!

Full Parts list is included in the read-me file to make it easier for you to organize your prints.

**Recommended print settings:**
Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Material: ~300g
Min. Bed Size: 180x180mm

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!


The Toronto Strandbeest

Crank Gear.STL

A clock that runs by balancing marbles on a teeter totter!  Once every ten minutes, the top seesaw tips, dropping a ball onto the the 10 minutes track.  Every hour, the 10 minutes track tips, dropping a ball onto the Hour track, and every 12 hours, all the tracks tip, and the clock starts from 1.

I have included the step file to help you with assembly!  Feel free to make mods at your pleasure, however note the files are for personal use only.

This video shows the whole assembly process:

https://youtu.be/GmLEBhJY5ks

The STL File:

Prints on all standard 3d printers, requires the following additional parts:

11 3x10x4 bearings: https://geni.us/ytgU1tC
M3 Screw Kit https://geni.us/CnX30
32 0.5in ball bearings: https://geni.us/uLEbw
Nema 17 Motor https://geni.us/IbL6D0
1 GT2 Pulley https://geni.us/l3MG
You will also need a way to drive the Stepper Motor: 

I recommend this board: https://geni.us/2sH7WYY
Real Time Module (Optional): https://geni.us/rtKYLJT
(Here is a really good tutorial for driving clocks with a stepper motor: https://www.youtube.com/watch?v=PR4PXR7RXEY&t=253s)

Recommended print settings:

Layer Height: 0.2mm

Nozzle: 0.4mm

Infill: 15-18% 

Can print on any standard sized printer.

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!

The Tipping Marble Clock

Tipping Clock Full Assembly.STEP

This box was born as a special collaboration between me and [3D Printing World](https://thangs.com/designer/3dprintingworld), where I sculpted the Magnolia flower on top and he designed the mechanical box.

This box is an outcome of a special request for a marriage proposal of a great member of the 3D Printing Community.
**Caleb**, the producer and costar of [HotMakes](https://youtube.com/@HotMakesLive?si=8Z-TZeVbEQwuodcW) wanted a mechanical ring box that somehow incorporates his girlfriend (now fiancés) favorite flower, the magnolia.
- - -
This type of mechanism **3D Printing World** created is perfect for a magnolia since the number of petals on the flower line up perfectly with 60 degrees.
Each of the six petals on top are connected to an outside ring gear and an inside torsion loaded spring gear.
When you hold the box and rotate the ring gear the pedals open. When you let go of the gear, the spring loaded gear forces the pedals to come together.

_**The bottom of the box prints in place.**
Use a .4mm nozzle and .2mm layer heights or smaller. You will need to print three double pedals and three single pedals. You will also want to print the shim which will help to glue the pedals squarely onto the shafts. None of the parts require supports. **There is also 3MF files for dual color pedals.**_

_The top petals glue onto locators on the top of each shaft to glue it together.
Make sure you alternate between single and double pedals.
**See the assembly video for assembly instructions.**_
- - -
Much thanks to **3D Printing World** for creating this brilliant and magical mechanism that makes the box so unique, without which the magic would not have been possible.
You can also download these files from **3D Printing World**. Please support him [here](https://than.gs/u/35786?plans=true)
- - -

**If you have any questions or inquieries about the files, if you have any suggestions and requests, or anything else, please don't hesitate to let me know!**

- - -

Please don't be shy and upload your make!

(_If you share it on your socials, please be sure to tag : @randomizy.3d [FB / IG] ; @randomizy3d [Twitter / Tik Tok] so that I can see it!_)

- - -
**Check out the amazing 3D Printing World profile here**: https://than.gs/u/35786
- - -

**INSTAGRAM:** https://www.instagram.com/randomizy.3d/

**TWITTER:** https://twitter.com/Randomizy3D

**FACEBOOK:** https://www.facebook.com/randomizy.3D

**Check More Here:** https://linktr.ee/Randomizy

- - -
_If you like my work and would like to support me so that I can bring you new content, receive exclusive benefits and you're interested in having a commercial license for selling 3D Printed items (not files) of my works, please do consider joining my Membership here:_ https://than.gs/u/296962?plans=true

Magnolia Box

TOP-2.stl

Magnolia Box (3 colors) (2 plates).3mf

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_Thank you for visiting my page! If you can, please consider supporting my art with a [subscription](https://than.gs/u/1514642?plans=true). Members will unlock ALL of my designs as well as the commercial rights to sell physical prints for as long as they are members._

_I also invite you to join my Discord channel, whether you're a reseller or a fan. You'll find a dedicated space where you can communicate directly with me and other members:
https://discord.gg/pUW67mEFrb_

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The Skeleton Version of the automata tapping hand, just for members

Video tutorial: https://www.youtube.com/watch?v=lFiVCcCdTiI 

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**REMEMBER THAT ALL MY FILES ARE PROTECTED BY A CC LICENSE AND ARE NOT INTENDED FOR COMMERCIAL PURPOSES UNLESS YOU HAVE [SUBSCRIBED TO A MEMBERSHIP PLAN ON THANGS](https://than.gs/u/1514642?plans=true) - IF YOU USE MY 3D FILES FOR COMMERCIAL PURPOSES, YOU HARM MY WORK AND MY COLLABORATORS - DON'T DO IT!**

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3D Model done with Rhino8: https://www.rhino3d.com/ 

_How do I take such high-quality photographs?
Here's my equipment:_

_Camera: https://amzn.to/3RPDj2c_
_Lightbox: https://amzn.to/4btNvV0_
_Tripod: https://amzn.to/3L51fuT_

Tappin Hand Skeleton Version (Members only)

Human_Base.stl

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_Thank you for visiting my page! If you can, please consider supporting my art with a [subscription](https://than.gs/u/1514642?plans=true). Members will unlock ALL of my designs as well as the commercial rights to sell physical prints for as long as they are members._


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Assembly video guide: https://www.youtube.com/watch?v=lFiVCcCdTiI&t=1s 


My latest project, a reinterpretation of this kinetic sculpture: (youtube.com/watch?v=J3qVvb6TYuU)
Instead of using a motor with an integrated RPM reducer + transmission belt, a series of gears are employed to reduce RPM (down to approximately 30 RPM), along with a standard 3V motor powered by two 1.5-volt batteries.
The 3D model was created using Rhino 5.
The print was made using a Zortrax M300 + ABS and HIPS.

🤖 What Is the Tapping Hand Automata? 🤖

An extraordinary creation that emulates finger movement during moments of waiting. Whether you're a tech enthusiast, a fan of fun gadgets, or just looking for an innovative pastime, you're in the right place!

The model is fully 3D printable and only requires a standard 3V DC motor and AAA 1.5-volt batteries

3D Model done with Rhino8: https://www.rhino3d.com/ 

Tapping Hand Automata

Some may call it the trippiest thing to come off of a 3D Printer since the conception of 3D printing. The Exploding Circle, previously existing only as a 3D rendering in the world of the YouTube, has been brought to the real (simulated) world.  After repeatedly kicking the behind of its creator, the gears have aligned. Once every 2pi radians, the segments of the circle come together, only to re-explode as the crank keeps spinning.

The Exploding Circle engineered kinetic sculpture is a mesmerizing example of how you can use spur gears, bevel gears, and planetary gears to create interesting motion.

This download includes all of the STL files needed to 3D print your own Exploding Circle sculpture and requires no additional tools for assembly. WD-40 or another type of lubricant is recommended for smooth operation.

This Video shows you how easy it is to assemble!

Recommended print settings:

Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Filament: ~0.47 kg
Largest Part Size on Bed: 200x200mm
Tallest Part: 106mm

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!  This download includes pre-arranged layouts for 205x205 (or larger) beds for easier printing!

The Exploding Circle

Build 1.stl

Whether your running away, or towards, your problems, or you're dancing through them, there's something incredibly satisfying about the way animations used to be done.  This fully 3d printed sculpture uses a trick of the eye to make satisfying looping animations come to life.

The STL File:

Prints on all standard 3d printers, requires no additional tools or assembly. The video below shows how to assemble it! This file comes with all the available animation sets of your choice, along with a blank set so you can create your own.  As more sets get released, you will receive an update-email so you can download the new ones!

Recommended print settings:

Layer Height: 0.2mm

Nozzle: 0.4mm

Infill: 15-18% 

Total Print Time: ~10 hours

Total Material: ~200g

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!

The Animation Station

Build 2 (10h - 120g).stl

A mesmerizing kinetic sculpture that uses a series of cam and follower mechanisms to produce a beautiful sine wave motion that in turn produces another beautiful sine wave motion of the ball bearings situated on the followers- it's basically waveception.

This design includes both an 8 horseshoe and a 16 horseshoe version.  

It requires 1/2 inch (12mm) steel balls which can be found here: https://amzn.to/3ViJuL7

(You will need 16 balls for the 8 horseshoe version and 32 balls for the 16 horseshoe version) 

**The STL File:**

All parts print on all standard 3d printers, requires no additional tools for assembly, and assembles in seconds (snap the parts together and you're ready to go!) 

The video below shows how easily this thing can be assembled! 

Recommended print settings:

Layer Height: 0.2mm
Nozzle: 0.4mm
Infill: 15-18% 
Total Material: ~222g (8 Piece) ~372g
Minimum Bed Size Required: 180mmx180mm

**All the files have been pre-oriented to save you some set up time! All you need to do is drop the parts into your slicer and hit print!

Mechanical

Videos this Month

Categories

Videos

Trending

Popular

Paid

Videos

New Uploads

Downloads

Trending

Popular

Paid

Videos

New Uploads

Downloads

Carousel Lamp with Mechanical Movement

The 3D Printed Wall Clock

MULTI-STAGE COMPOUND GEARBOX 93:1 | HIGH TORQUE SPEED REDUCER

The Triple Pendulum Chaos Creator

The Walking Bob Escapement

The Mechanical Counter

Rack Driven 7 Segment Display

The Gravity Well

The Toronto Strandbeest

The Tipping Marble Clock

Magnolia Box

Tappin Hand Skeleton Version (Members only)

The Exploding Circle

The Animation Station

Horseshoe Waves Kinetic Sculpture