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Enclosures & cases
Junction box with gasket groove for outdoor use
A small outdoor box for joining low-voltage cables, sensors or LED drivers where rain must stay out. The body has 3 mm walls, a 2 mm wide and 1.5 mm deep groove around the rim for an O-ring cord or silicone bead, and a lid with a matching tongue that compresses the seal when four M4 screws are tightened into corner bosses. Cable entries are 12 mm holes for PG7 glands, and internal standoffs support a terminal strip. Print in PETG or ASA, open side up. Open the ready-made model free, resize it on your phone or computer, then download a print-ready STL, 3MF or G-code sliced for your printer, free.Opening the ready-made model and downloading it as STL or 3MF are free, no card; AI changes use credits, from Maker at $7.99 a month.No printer? We print this part and ship it to your door. See its priceUpdated
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Adjust
Change its numbers in the viewer for free, or ask the AI in the chat: wall thickness, hole size, the thing it clips onto. AI changes use 2 credits per request (1 for a quick edit, 3 for a redesign), paid with a plan from Maker at $7.99 a month.3Print
Download a watertight STL or 3MF free, with your numbers and hand edits, or G-code sliced for your printer at the same price. After an AI change the download is included in every plan (4 credits without one).
Dimensions of the ready-made model (editable)
| Parameter | Value |
|---|---|
| cavity interior length | 80 mm |
| cavity interior width | 60 mm |
| cavity interior depth | 40 mm |
| wall thickness | 3 mm |
| base floor thickness | 3 mm |
| M4 pilot hole | 3.3 mm |
| distance from cavity corner to boss center | 8 mm |
| height of rim wall above cavity top before lid sits | 4 mm |
| lid top thickness | 3 mm |
Example prompt
Design a weatherproof junction box, cavity 80x60x40 mm, 3 mm walls, four corner bosses for M4 screws. Rim groove 2 mm wide, 1.5 mm deep for an O-ring cord, lid with matching tongue. Two 12 mm gland holes, two 3 mm standoffs, two mounting ears with 5 mm holes.
Fit notes
SpeakCAD lets you set the number and position of gland holes, the internal size for your terminal block and the screw layout, instead of drilling a downloaded box. Open the ready-made model free, change its numbers in the viewer and download the STL or 3MF free; AI changes use credits.
Questions people ask about a junction box with gasket groove for outdoor use
A small outdoor box for joining low-voltage cables, sensors or LED drivers where rain must stay out. The body has 3 mm walls, a 2 mm wide and 1.5 mm deep groove around the rim for an O-ring cord or silicone bead, and a lid with a matching tongue that compresses the seal when four M4 screws are tightened into corner bosses. Cable entries are 12 mm holes for PG7 glands, and internal standoffs support a terminal strip. Print in PETG or ASA, open side up.
Click Open it free on this page and create a free account (no card): the ready-made model opens in your browser, on your phone or computer, nothing to install. Change its numbers in the viewer for free and download a watertight STL or 3MF free, or G-code sliced for your printer at the same price. An AI change in the chat uses 2 credits per request (3 for a redesign), and the download after it is included in every plan (4 credits without one). Start with Maker: 50 credits a month for $7.99, cancel anytime.
On this page: open the ready-made model free in a SpeakCAD account (no card), change any dimension in the viewer, then download the STL or 3MF free, or G-code sliced for your printer at the same price.
A shared STL is modelled for someone else's measurements. Here you open the ready-made model free, change it to your measurements in the viewer, then download a file sized for the part you actually own, free as STL or 3MF.
Yes. SpeakCAD slices the part on its servers with OrcaSlicer and your printer's official profile (380+ printers, including Bambu Lab, Prusa, Creality and Elegoo), and you download the G-code (a sliced .gcode.3mf for Bambu Lab printers). G-code sliced for your printer costs the same as the STL: included in every plan, free for a part you shaped by hand, 4 credits without a plan for a part with AI work in it. Pick your printer on the printers page to see its profile.
No. SpeakCAD runs in the browser on your phone or computer: the chat, the 3D engine and the live viewer load in the tab. The only file you download is the finished STL, 3MF or sliced G-code.
Print it your way
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