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Adapters & couplers
GoPro mount to Garmin quarter-turn adapter for bike lights
A puck that lets a bike light with a GoPro-style two-finger foot, such as a Knog Blinder, Exposure Strada or Magicshine, hang from a spare Garmin quarter-turn socket on an out-front mount. The top carries the male Garmin quarter-turn tab profile with 0.2 mm clearance, the bottom has a GoPro fork: two 3 mm fingers, a 3.2 mm gap and a 5.2 mm hole for the M5 thumbscrew. Overall height is 14 mm so the light sits close to the mount, and it prints with the fingers up in PETG or nylon for toughness. 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 |
|---|---|
| puck body diameter | 25 mm |
| total height | 14 mm |
| base disc diameter the tabs sit on | 16 mm |
| height of base disc above puck top | 2 mm |
| number of tabs | 4 |
| tab width (arc chord approx) | 3 mm |
| tab thickness (radial protrusion height, includes 0.2 clearance built in) | 1.8 mm |
| radius at which tabs are centered | 5.5 mm |
| tab length (tangential arc length approx via box) | 4 mm |
| general clearance allowance | 0.2 mm |
| through hole diameter | 5.2 mm |
| hole center height from bottom | 6.5 mm |
Example prompt
Model a Garmin quarter-turn to GoPro adapter puck 14 mm tall with a male Garmin four-tab quarter-turn interface on top, 0.2 mm clearance, and a two-finger GoPro fork below with 3 mm fingers, a 3.2 mm gap and a 5.2 mm through hole.
Fit notes
Adapters like this exist in shops, but never in the exact orientation or height you need, and a loose one lets a 600 lumen light swing. In SpeakCAD you specify the finger count, rotation and height, preview the adapter in the browser, tweak it in the chat, then download the STL.
Questions people ask about a GoPro mount to Garmin quarter-turn adapter for bike lights
A puck that lets a bike light with a GoPro-style two-finger foot, such as a Knog Blinder, Exposure Strada or Magicshine, hang from a spare Garmin quarter-turn socket on an out-front mount. The top carries the male Garmin quarter-turn tab profile with 0.2 mm clearance, the bottom has a GoPro fork: two 3 mm fingers, a 3.2 mm gap and a 5.2 mm hole for the M5 thumbscrew. Overall height is 14 mm so the light sits close to the mount, and it prints with the fingers up in PETG or nylon for toughness.
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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