Custom Washer & Spacer Builder

Generate exact-size 3D printable washers, shims, spacer rings, bushings, and solid spacer discs without CAD.

Custom 3D Printable Washer Generator

Use this 3D printable washer generator to create a washer, shim, spacer ring, bushing, or solid spacer disc sized for the hardware and gap you actually need. Enter the inner diameter, outer diameter, and thickness in millimeters, preview the part in 3D, and export it for your slicer without opening CAD software.

Set Exact Washer and Spacer Dimensions

The builder gives you direct control over the dimensions that matter for functional fit. Set the inner diameter for a bolt, shaft, or pass-through; choose the outer diameter for the required bearing surface; and adjust thickness from a thin shim to a taller spacer. Setting the inner diameter to zero creates a solid round spacer disc.

• Adjustable inner diameter from solid disc to large bore
• Adjustable outer diameter for compact or wide-load surfaces
• Thickness control for shims, washers, spacers, and standoffs
• Optional edge chamfer to ease insertion and reduce elephant-foot interference
• Adjustable circular resolution for smoother round parts

Useful for Quick Functional 3D Prints

A 3D printable washer generator is useful when standard hardware is almost right but the project needs a nonstandard size. Make replacement spacers for furniture and fixtures, alignment shims for workshop projects, bushings around shafts, backing washers for larger contact areas, or prototype spacing parts while dialing in an assembly.

Printing Tips for Washers, Shims, and Spacers

Print the part flat on the build plate with the circular face down. Most designs need no supports. For dimensional fit, measure the mating hardware with calipers and allow for your printer’s normal hole tolerance. A small chamfer can help when first-layer expansion would otherwise make the bore tight.

Very thin shims should use a layer height that divides cleanly into the desired thickness. For structural spacers, use enough walls that the slicer produces a strong continuous perimeter around both the inner and outer diameter. Material choice should match the temperature, load, and creep requirements of the application.

Measure, Preview, Export

Enter the dimensions, inspect the live model, and export the result in a supported 3D format. If you need other customizable parts, browse the 3D Builder Tools for more browser-based generators.

Export your finished model in STL, OBJ, or 3MF format using the builder export menu.