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Adapters & couplers
Raspberry Pi 5 USB-C power cable strain relief boot
A snap-on boot that supports the USB-C plug of the official Raspberry Pi 27 W power supply where it meets the Pi 5, preventing the wiggle that causes undervoltage warnings on a shelf-mounted board. The boot has a 13 x 7 mm channel matching the plug overmould with 0.3 mm clearance, a 30 mm tail with a 4.5 mm cable groove that guides the lead through a 90 degree turn, and two 2.5 mm holes that line up with the Pi 5 corner mounting hole and a case standoff. Walls are 1.5 mm and the part prints as two clam halves that close with a 1 mm snap rib. Print flat in TPU or PETG. 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 |
|---|---|
| USB-C plug width | 13 mm |
| USB-C plug height | 7 mm |
| clearance around plug | 0.3 mm |
| length of plug channel section | 16 mm |
| wall thickness | 1.5 mm |
| cable groove diameter | 4.5 mm |
| straight tail length after bend | 30 mm |
| snap rib height | 1 mm |
| snap rib width | 1.2 mm |
| mounting hole diameter | 2.5 mm |
| mounting lug width | 8 mm |
| mounting lug thickness (extra material) | 3 mm |
Example prompt
Design a two-half snap-together strain relief boot for a USB-C plug 13 x 7 mm with 0.3 mm clearance, a 30 mm tail with a 4.5 mm cable groove turning 90 degrees, two 2.5 mm mounting holes for a Raspberry Pi 5 corner and case standoff, 1.5 mm walls and a 1 mm snap rib.
Fit notes
Strain relief only works if the channel matches your exact plug, and generic downloads target older micro USB supplies. In SpeakCAD you describe the plug and exit angle, preview the boot in the browser, adapt it to a Pi 4 or a laptop charger in the chat, and download the STL.
Questions people ask about a Raspberry Pi 5 USB-C power cable strain relief boot
A snap-on boot that supports the USB-C plug of the official Raspberry Pi 27 W power supply where it meets the Pi 5, preventing the wiggle that causes undervoltage warnings on a shelf-mounted board. The boot has a 13 x 7 mm channel matching the plug overmould with 0.3 mm clearance, a 30 mm tail with a 4.5 mm cable groove that guides the lead through a 90 degree turn, and two 2.5 mm holes that line up with the Pi 5 corner mounting hole and a case standoff. Walls are 1.5 mm and the part prints as two clam halves that close with a 1 mm snap rib. Print flat in TPU or PETG.
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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