The free Parametric Bracket, Standoff & Spacer
Generate parametric hardware as ready-to-print STL: L-brackets (holes, gusset), round or hex standoffs, spacers, washers and mounting plates with hole grids.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
A hex standoff 6 mm across flats with a 3.2 mm hole and 12 mm long is about 0.28 cm³ (0.34 g of solid PLA); a 40 × 30 mm L-bracket 20 mm wide and 3 mm thick with two 4.2 mm holes in the base and one in the upright is a single watertight solid.Open the Parametric Bracket, Standoff & Spacer
Illustration. Open the tool for the real thing.
See it in action
Sample input: Outer Ø / across flats (mm) = 6; Hole Ø (mm, 0 = solid) = 3.2; Length (mm) = 10. Pressed Fit to view (double-click).
What is the Parametric Bracket, Standoff & Spacer?
Many printed parts are just plain hardware: a standoff to lift a circuit board, a spacer, a washer, an L-bracket, a mounting plate with a grid of screw holes. This generator builds each from the dimensions you type — outer and inner diameters, lengths, thickness, hole sizes and counts, spacing — using solid-modelling operations (boolean unions and cuts) and exports closed, manifold meshes that slice cleanly.
L-brackets have independent leg lengths, width, thickness, hole sizes and hole counts on each leg, plus an optional corner gusset; standoffs come round or hexagonal with a through-hole; mounting plates have rounded corners and a hole grid. The preview shows the model with size, volume and filament weight, and downloads as STL or 3MF.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Standoffs (round/hex), spacers/washers, L-brackets and mounting plates.
Boolean cuts and unions, healed into a manifold mesh.
3D view with size, volume and weight.
Print-ready downloads.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
How it compares
A plain look at this tool next to the usual alternative.
| This maker tool | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
Are the meshes watertight?
Yes — boolean results are healed to a closed manifold mesh.
Can I make other shapes?
This tool covers these five; the SVG extruder and 3D text tools cover custom outlines.
What units are used?
Millimetres.
Is it private?
Yes, everything runs in your browser.
How do I use the Parametric Bracket, Standoff & Spacer?
1. Choose the part type. 2. Enter its dimensions and hole sizes. 3. Check the 3D preview and weight. 4. Download the STL or 3MF.
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Try the Parametric Bracket, Standoff & Spacer now
Generate L-brackets, standoffs, spacers, washers and mounting plates as STL. Free to use.
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