PrintMakerAI Snap-Fit Enclosure Generator

About this generator

PrintMakerAI Snap-Fit Enclosure Generator is a free browser tool that builds a two-part electronics project box: a base and a lid that clicks onto a small bead on the base's lip. You type the interior size your board needs, anywhere from 30 x 30 x 10 mm up to 200 x 150 x 80 mm, and the walls are added around it. It is one of a handful of free tools on PrintMakerAI, a site whose main product is a paid AI design app, but this generator runs a fixed CAD script and needs no login.

Twenty number fields cover the details. The front wall gets a rectangular cutout, sized for a USB-C plug by default, and the right side gets a round hole meant for a cable gland, each with its own offset and height. Four standoffs with pilot holes for M2.5 self-tapping screws follow your board's mounting hole spacing. Setting a port or the standoffs to 0 removes them, and a clearance field loosens the lid if it fits too tight. A 3D preview lets you switch between base and lid before you download.

There are no board presets, so have your measurements ready. It suits makers boxing up a microcontroller or a small sensor board.

What you can make

• Snap-lid project boxes
• Electronics enclosures with PCB standoffs
• Boxes with a USB-C port cutout
• Boxes with a round side hole for a cable gland

How to use PrintMakerAI Snap-Fit Enclosure Generator

1. Measure your board's size, tallest part and mounting hole spacing
2. Enter the interior size and wall thickness
3. Position the front and side ports, or set them to 0
4. Set the standoff spacing and click Regenerate with my dimensions
5. Download the base and lid STLs and print them without supports