STLKit3D

Free CAD Utilities
Browser-Based • Instant .STL

Browser-Based Gridfinity & 3D Print Generator

Generate parametric Gridfinity bins, custom drawer dividers, and workshop organizers directly in your browser. Instant binary STL export with zero CAD or OpenSCAD required.

Parametric Gridfinity Bin

Standard 42mm modular grid pitch with customizable internal dividers.

Rotate: Drag • Zoom: Pinch/Scroll

Keychain Tag Generator

Create a flat name tag with raised text and a mounting hole.

Rotate: Drag • Zoom: Pinch/Scroll

Parametric Storage Box

Custom dimension container with uniform shell thickness.

Rotate: Drag • Zoom: Pinch/Scroll

Flat Lithophane Maker

Converts any uploaded photo into a light-transmitting relief mesh.

Preview shows grayscale heightfield mapping

Snap-In Desk Cable Clip

Print-in-place U-channel organizer for USB and power cables.

Rotate: Drag • Zoom: Pinch/Scroll

Single-Extruder Color Swap Calculator

Calculate the exact pause layer height for dual-tone prints.

Slicer Pause Directives

Calculated Swap Layer: Layer 15
Target Z-Height Pause: 3.00 mm
G-code Command: M600

In PrusaSlicer / Bambu Studio / OrcaSlicer: Right-click the layer slider at the specified Z-height and select "Add pause" or "Change filament".

Filament Density & Cost Calculator

Estimate raw material consumption and part pricing.

Material Breakdown

Estimated Weight: 31.0 g
Raw Filament Cost: $0.62
Spool Yield: ~32 identical copies

Filament Thermal Shrinkage Compensation

Scale parts in your slicer to ensure press-fit mechanical tolerances.

Scale Adjustment Factors

Slicer Scale Percentage: 101.63 %
Pre-Compensated CAD Dimension: 50.81 mm

Input the slicer scale percentage into your X/Y scaling factors before slicing to avoid undersized functional assemblies.

Instant Browser-Based Gridfinity Generator

Our browser based gridfinity generator creates parametric bins without CAD software or OpenSCAD. Implements authentic 42mm base pitch with single click binary STL export for drawer divider setups.

100% Watertight Mesh Geometry

Every generator uses parametric extrusion algorithms that prevent non-manifold edges, inverted normals, and unclosed surfaces, ensuring your slicer interprets the file cleanly.

Dual-Color Printing Made Accessible

Achieve striking contrast on keychains and QR codes using a single-extruder 3D printer. Pair our generators with the Color-Swap Calculator to pause and swap spools at the precise layer.

Online Parametric Organizer STL Export Free

Generate web based 3D printable drawer divider STLs and custom storage containers without cloud uploads. Everything processes in real-time inside your browser's WebGL instance.