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Where to find footprints for this type of switch? MSS22D18

𝔎𝔦𝔯𝔞 , 09-07-2026, 05:29 PM
https://www.aliexpress.com/item/1005010165596909.html?invitationCode=SndQL2JrS0dCTVFlTERWM0pycXExWVpmZE9WTUVUaE5sWUxIUElodVFYcWVQemFTZUJrNWVWT0s1MU1hdTAyWg&srcSns=sns_Copy&spreadType=socialShare&social_params=6000487855602&bizType=ProductDetail&spreadCode=SndQL2JrS0dCTVFlTERWM0pycXExWVpmZE9WTUVUaE5sWUxIUElodVFYcWVQemFTZUJrNWVWT0s1MU1hdTAyWg&aff_fcid=859de9c9111f4db8bc08880bd8f133cc-1788801862300-00802-_c4dXIeRb&tt=MG&aff_fsk=_c4dXIeRb&aff_platform=default&sk=_c4dXIeRb&aff_trace_key=859de9c9111f4db8bc08880bd8f133cc-1788801862300-00802-_c4dXIeRb&shareId=6000487855602&businessType=ProductDetail&platform=AE&terminal_id=0dc7fcc534f54509a8ea3fede360cdcd&afSmartRedirect=y

KiCad natively does not have MSS22D18 it looks like

found it on LCSC https://jlcpcb.com/partdetail/JLCPCBAssembly-MSS22D18/C9900212311 but the image doesnt show, idk what kind this is I want a specific right angled shaped one
, 09-07-2026, 05:33 PM
🤖 In the meantime, here’s a response from the [FEDEVEL AI HW Assistant]().
It helps to find relevant resources for your question, but it may make mistakes as it’s still in early development.

This is the response from the AI Assistant:
For custom components like the MSS22D18 right-angle switch, you'll need to create your own footprint using these methods:

1. **Manufacturer Datasheet First**
Check if the AliExpress listing or manufacturer provides a mechanical drawing with dimensions (critical for pad placement and housing outline). If unavailable, contact the seller directly - this is mandatory for professional designs.

2. **3D Model Adaptation**
Like shown in [this keyboard design example](https://www.youtube.com/watch?v=rMoTqSC9wrY&t=203), search for STEP models on:
- **SnapEDA** (free with registration)
- **GrabCAD Community**
Even if not identical, you can scale/rotate models in KiCad's 3D viewer to match physical measurements.

3. **Footprint Creation Workflow**
As demonstrated in [this footprint tutorial](https://www.youtube.com/watch?v=wxYbIGV9_CY&t=2645):
- Place pads using switch pin measurements
- Add silkscreen outline with right-angle orientation marking
- Set courtyard boundaries
- Align 3D model to verify mechanical fit

4. **Community Resources Check**
Search KiCad's official library and:
- [Ai03 Keyboard PCB Guidelines](https://github.com/ai03-2725/MX_Alps_Hybrid)
- [Keebio Community Footprints](https://github.com/keebio)

**Pro Tip:** For switches without clear documentation, order a sample first and measure with calipers. Many AliExpress switches are clones of Cherry MX-style mechanisms - you might adapt existing MX footprints with position adjustments.

You can continue chatting with the AI Assistant here:
https://fedevel.com/hw-assistant
QDrives , 09-07-2026, 07:59 PM
My advise: only select parts where you can get the datasheet from the manufacturer.
Robert Feranec , 09-08-2026, 06:24 AM
there is very useful script easyeda2kicad ... it will import symbol footprint and 3d model into kicad library: https://github.com/uPesy/easyeda2kicad.py
𝔎𝔦𝔯𝔞 , 09-08-2026, 06:27 AM
i am using this already
𝔎𝔦𝔯𝔞 , 09-08-2026, 06:28 AM
as for that aliexpress product, i could not find anything matching on lcsc
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