Free No account needed

EnclosureAI (3D MakerBench)

Free electronics enclosures built around a real board, with standoffs, port cutouts and vents, as STL or OBJ

EnclosureAI (3D MakerBench) is a free browser tool for a case that fits a specific Arduino, ESP32 or Raspberry Pi board. Free, no account; the optional AI assistant has a daily free allowance (100 requests when checked). Exports STL and OBJ. Last checked 10 October 2026.

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Opens enclosure.3dmakerbench.com

At a glance

Price: Free, no account; the optional AI assistant has a daily free allowance (100 requests when checked)
Runs on: Browser
Exports: STL, OBJ
Multicolor: No, single color
Account: Not needed
Open source: No
Skill level: Easy: a few settings to tune
Best for: A case that fits a specific Arduino, ESP32 or Raspberry Pi board
Selling prints: Allowed The maker confirmed by email in October 2026 that the tools are free for personal and commercial use, so you may sell the prints; a credit or link to 3dmakerbench.com is appreciated but not required.
How we checked: Made and downloaded a file Opened without an account: board library, lid and standoff options, per-face ports; the default 80 x 60 x 30 mm box downloaded as an ASCII STL
Last checked: 10 October 2026

Open generator

Sources: EnclosureAI designer, EnclosureAI how-to guide, About 3D MakerBench (sister app and selling prints) (checked 10 October 2026)

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What is EnclosureAI (3D MakerBench)?

EnclosureAI is the electronics enclosure designer from the makers of 3D MakerBench. You pick a board from a library of about two dozen with real geometry, including the Arduino Uno and Mega, ESP32 and ESP8266 boards, Raspberry Pi 4, 5, Zero 2 W and Pico, and the BeagleBone Black, and the box resizes around it with standoffs under the mounting holes and the known connector cutouts already in the walls. Quick-start sizes and manual dimensions cover boards that are not listed.

You set the box size, wall thickness, corner radius, clearance around the board, the lid (open top, closed or split) and M2, M2.5 or M3 standoffs. Ports and features are added per face from groups such as USB, video, audio, power, network, buttons, displays, vents and pin headers, and each cutout can be nudged to exact distances from the edges. An optional AI bar fills in the design from a description; it showed a free allowance of 100 requests a day when checked. Exports are STL, OBJ, or JSCAD code to keep editing.

It is free and the form works without an account. The 3D MakerBench About page calls EnclosureAI its sister app, and the maker states that files made with 3D MakerBench may be printed and sold. It suits hobbyists boxing up an Arduino, ESP32 or Raspberry Pi project.

What you can make

Raspberry Pi and Arduino cases
ESP32 and sensor project boxes
Enclosures with port cutouts and vents
Split-lid boxes with board standoffs

How to use EnclosureAI

Pick your board from the library or a quick-start size
Set the box, lid and standoff options
Add ports and vents on each face and check the side views
Download the STL and print

What you'll need to print it

Filament and parts that suit what you make with EnclosureAI.

PETG

M3 screws

Bambu Lab Fastener Kit Bambu Lab
Hilitchi M3 socket head cap screw assortment kit (affiliate link) Amazon

Matte PLA

Also handy

Digital calipers

Filament dryers and dry boxes

SUNLU FilaDryer S4 (affiliate link) Amazon
Polymaker PolyDryer (affiliate link) Amazon

Some of these are affiliate links: we may earn a small commission, at no extra cost to you. More about that

EnclosureAI pros

Board library with real mounting holes and connector cutouts
Ports, buttons, vents and headers placed per face at exact positions
STL, OBJ and editable JSCAD export, free and without an account

EnclosureAI cons

Boards outside the library need manual dimensions or the AI bar
Three lid types only (open top, closed or split), and the AI bar has a daily free limit