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Brackets & mounts
DIN rail clip for mounting a small PCB
A snap-on clip for standard 35 mm top-hat DIN rail with a flat platform for a small circuit board. The clip has a fixed hook on one side, a flexible sprung tongue on the other with a 1.2 mm thick living hinge, and a 35.2 mm span between them. The platform is 50 x 70 x 3 mm with M3 standoffs matching the board. Printing flat with the platform down aligns the tongue with the layers so it flexes without splitting. 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 |
|---|---|
| span across rail (with clearance) | 35.2 mm |
| rail lip thickness | 1.2 mm |
| rail lip depth (how far lip protrudes) | 7 mm |
| depth of rail channel (front to back) | 27 mm |
| base plate thickness under rail | 3 mm |
| thickness of side walls holding rail | 3 mm |
| flexible snap tongue thickness | 1.2 mm |
| length of flexible tongue arm | 12 mm |
| standoff outer diameter | 9 mm |
Example prompt
Design a DIN rail clip for 35 mm top-hat rail with a 35.2 mm span, fixed hook on one side and a flexible snap tongue 1.2 mm thick on the other. Top platform 50x70x3 mm with four 5 mm tall standoffs and 2.5 mm holes at 45x65 mm spacing.
Fit notes
Instead of hunting for a clip drawn for someone else's board, give SpeakCAD your PCB's hole spacing and the rail type, and the platform is laid out to match. If the snap feels stiff in the preview, request a thinner tongue or a longer lever. 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 DIN rail clip for mounting a small PCB
A snap-on clip for standard 35 mm top-hat DIN rail with a flat platform for a small circuit board. The clip has a fixed hook on one side, a flexible sprung tongue on the other with a 1.2 mm thick living hinge, and a 35.2 mm span between them. The platform is 50 x 70 x 3 mm with M3 standoffs matching the board. Printing flat with the platform down aligns the tongue with the layers so it flexes without splitting.
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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