Fully 3D Printed, Snap-Together, Conical Bearing Turntable

A smoother, quieter, fully 3D printed Lazy Susan designed from the ground up for functional performance — no metal hardware, no supports, and no compromises.

This is Version 3.0 of my printed radial bearing system, featuring redesigned conical rollers, improved carrier geometry, and dramatically reduced binding and friction.

Why I Designed This

Most printed Lazy Susans either rely on loose balls, straight pins, or metal hardware. They work, but they’re noisy, inefficient, or inconsistent when printed in FDM.

I wanted a fully printable radial bearing that:

• Rolls properly without kinetic mismatch
• Reduces side rub and binding
• Prints cleanly without supports
• Snaps together easily
• Can scale across multiple diameters

Version 3 is the result of refining roller retention, conical alignment, and carrier geometry into a smoother and more efficient system.

What’s New in Version 3

• End-captured conical rollers (no side wall rubbing)
• Tilted conical alignment for improved race geometry
• Larger bearing diameter for quieter operation
• Flat carrier interfaces to reduce resistance
• Redesigned lighter carrier ring
• Completely flat base bottom
• Optional reduced bearing count for ultra-quiet mode

Key Features

• 120mm outer diameter
• 100% 3D printed
• Snap-together assembly
• No supports required
• Multiple top options included:
  • Fully enclosed Lazy Susan top
  • Radial bearing top with screw tabs
  • Radial bearing top without screw tabs
• Quiet operation when bearings are printed in TPU
• Scalable design family (larger sizes available separately)

Use Cases

• Desk organizers
• Display stands
• Product photography turntables
• Tool trays
• Kitchen spice platforms
• Workshop parts bins
• Mounted rotating platforms
• Educational mechanical demos

How It Works

This design uses conical rollers that are tilted by half the cone angle. This creates:

• A flat bottom race for smoother rolling
• A steeper top race for cleaner FDM print geometry

The rollers are retained at their ends using small indents and carrier nubs, eliminating side rub and reducing noise and binding.

The carrier must be installed with the connecting bars facing upward. Orientation matters.

You may assemble using:

• Full bearing count for maximum load capacity
• Half or even 1/4 of the bearings for quieter operation (reduced load capacity)

All parts print separately and snap together. No hardware required.

Important Notes – Bearings & Print Quality

• The conical bearings are specific to each size model
• Bearings from one diameter (120, 160, 200, etc.) will NOT work correctly in another size
• Do not mix bearings between models
• Always print the bearings included with that specific version

Slicer Note – Seam Settings Matter

The conical rollers perform best when the outer surface is smooth and consistent.

• If your printer produces very clean walls, no adjustment is needed
• If you notice a strong vertical seam bump, you may feel a slight rhythmic tick as the roller turns
• Switching seam placement from "Aligned" to "Random" often reduces the noticeable bump
• Reducing seam prominence improves smoothness and noise performance

A clean outer wall on the rollers makes a noticeable difference in rotation quality.

Print & Slicer Settings (Recommended Starting Point)

• Nozzle: 0.4mm
• Layer height: 0.2mm
• Walls: 4 perimeters (1.6mm)
• Top/Bottom: 5 layers
• Infill: 40% (100% for bearings)
• Supports: None required
• Wall generator: Arachne recommended

You can print all parts in PLA or other materials. Bearings operate noticeably quieter when printed in TPU.

Available Sizes

• 120mm
• 160mm
• 200mm
• 240mm
• 280mm
• 310mm
• 340mm

Related Links

Join the LogicalPlanet Discord https://linktr.ee/logicalplanet

Visit my blog for more details and other designs https://www.logicalplanet.com/

Revisions and Updates I occasionally update and revise my designs. When I do, I’ll document the changes here. Check back periodically for the latest revision notes or if you’re experiencing any issues with a model. Please email me at logicalplanet3d@gmail.com if you would like me to make a revision or have comments about this design.