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Adapters & couplers
Shure SM7B to 3/8 inch mic arm adapter
A threaded adapter that lets a Shure SM7B or SM7dB yoke, which has a 5/8-27 female thread, screw onto a boom arm that only offers a 3/8-16 male stud, such as a Rode PSA1 or a cheap desk arm whose brass insert went missing. The part is a 22 mm diameter, 18 mm tall knurled cylinder with a 3/8-16 female bore 12 mm deep and a 5/8-27 male stud 10 mm long on top, both with 0.15 mm thread clearance so they bite without stripping. Print it standing up at 0.12 mm layers in PETG or ASA for the 765 g microphone; the knurling gives you grip when tightening. 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 |
|---|---|
| body diameter | 22 mm |
| overall body height | 18 mm |
| knurled grip band height | 2 mm |
| major diameter | 9.525 mm |
| thread depth | 12 mm |
| major diameter | 15.875 mm |
| thread length | 10 mm |
| radial thread clearance | 0.15 mm |
Example prompt
Create a microphone thread adapter 22 mm in diameter and 18 mm tall with a 3/8-16 female thread 12 mm deep at the bottom, a 5/8-27 male thread 10 mm long on top, 0.15 mm thread clearance, a 2 mm knurled grip band and a solid 4 mm centre web, for a Shure SM7B on a 3/8 inch arm.
Fit notes
Printed threads only work when the pitch and clearance are tuned to your printer, which a random download cannot know. In SpeakCAD you type the two threads and your nozzle size, preview the adapter in the browser, ask for a 1/4-20 version for a Shure MV7 in the chat and download the STL.
Questions people ask about a Shure SM7B to 3/8 inch mic arm adapter
A threaded adapter that lets a Shure SM7B or SM7dB yoke, which has a 5/8-27 female thread, screw onto a boom arm that only offers a 3/8-16 male stud, such as a Rode PSA1 or a cheap desk arm whose brass insert went missing. The part is a 22 mm diameter, 18 mm tall knurled cylinder with a 3/8-16 female bore 12 mm deep and a 5/8-27 male stud 10 mm long on top, both with 0.15 mm thread clearance so they bite without stripping. Print it standing up at 0.12 mm layers in PETG or ASA for the 765 g microphone; the knurling gives you grip when tightening.
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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