Most consumer electronics are designed to be opened only by a repair technician, if at all. CMF's first portable speakers go the other way. The company's two new models, the Speaker S and Speaker M, have front panels and volume knobs that pop off by hand, and the company has published official STL files and printing tips on the Nothing Community forum so owners can print their own. The post says the set includes the original files alongside some playful variants, which makes it a reliable starting point for anyone who wants a custom face on a $59 Bluetooth speaker.
The Hardware in Brief
CMF announced the speakers on October 12. Android Central reports that the Speaker S costs $59 and the Speaker M starts at $109. According to VoxelMatters, the Speaker S uses a custom-tuned 45 mm driver, while the taller Speaker M pairs a woofer with a tweeter. Both share a milk-carton silhouette and come in white, dark grey, orange and turquoise. VoxelMatters calls them CMF's first portable products.
On the software side there is a Stereo Mode that pairs two speakers of the same model as a left/right set, a Wide Soundstage mode for a single unit, Adaptive Tuning EQ with custom EQ profiles in the Nothing X app, and a Party Mode that uses Android's Auracast. None of this affects printing, but Stereo Mode is a good excuse to make mirrored or contrasting faces for a matched pair.
VoxelMatters describes the housing as one that users can take apart, with the front panel and volume knob designed to be swapped for custom replacements. CMF's own framing includes trading parts with friends and mixing colors as well as printing new ones.
What CMF Actually Released
The community post lists the downloads by speaker size. All are STL files, so expect to work in a slicer or a mesh-editing tool rather than in parametric CAD.
Speaker S panels: Panel (8 MB), Covered (12 MB), Slotted (8 MB), Cone (8 MB) and Double (15 MB).
Speaker M panels: Panel (10 MB), Half (12 MB), Cone (10 MB), Traffic Light (11 MB) and Double (16 MB).
Shared parts: Knob Original (3 MB), Knob Unique (6 MB) and a Power Button (378 kB).
The post says it includes the original files along with some fun ones to try out. The plain "Panel" file for each size is therefore the obvious base for remixing, since it is the stock design.
CMF's Print Advice, Unpacked
The official post includes a short list of tips. Each one is worth a closer look, because they match the failure modes that small functional parts usually run into.
Material: PLA first, PETG for the knob
CMF suggests PLA as the easy choice for a first attempt, calling it great for a first go, and PETG as the tougher option for parts you will handle a lot, like the knob. That split makes sense. A front panel is mostly cosmetic and sees little handling, so PLA is a reasonable default. A knob is turned and gripped repeatedly, which is exactly the case CMF points to when it recommends PETG.
Layer height: go finer on small parts
The post recommends a finer layer height for small parts, and it singles out lettering and texture: smaller parts like knobs look much better finer, especially if you are adding either. On something knob-sized, a coarse layer height turns curves into visible stair-steps and can blur small details. Dropping the layer height for the knob and power button is the simplest upgrade you can make to the result.
Test fit before committing
CMF advises printing one part to check fit before going further. Treat this as a calibration step. In CMF's words, every printer is a little different, and a small tweak to your settings usually sorts out anything too tight or too loose. Print one knob or panel first, check how it seats, and adjust before running a full set or a batch for friends.
Orientation is a trade-off
The most useful tip is about orientation. CMF says that how you place a part on the bed changes how it turns out: printing panels flat usually gives the cleanest front face, while printing horizontally is recommended for the best rigidity. That is the usual trade-off between surface quality and strength. For a purely decorative panel, flat is the natural choice because the front face is the whole point. If you want a sturdier panel and can accept a rougher face, try the horizontal orientation CMF recommends for rigidity,.
Make details deep enough
Finally, CMF invites you to add initials, a logo or a texture, with one condition: make sure any details are deep enough to show up once printed. Shallow embossing or engraving can vanish into a layer or two. If you remix a panel with text or a pattern, give it real depth.
Where Custom Designs Will Live
One open question is distribution. When a forum member asked where owners can share their own prints and models, a CMF staff reply in the post's comments said to post photos of finished prints in that thread, while for custom files the company is still working on the best location, because the files can be quite large. For now, the official STLs are the reference set.
The community has done this before. A commenter on the post points to the creativity around prints for the CMF Phone 1 Pro and CMF Phone 2 Pro, and VoxelMatters notes that Nothing released an STL file for the CMF Phone 1's replaceable cover in 2024.
There is a corporate footnote too. Android Central notes that CMF recently became its own company in India, divesting from Nothing, even though the files are hosted on Nothing's community forum.
What It Means for Makers
Swappable parts with published print files are a growing trend rather than a first, as VoxelMatters points out, but the speakers still offer something useful: the stock geometry and sensible material and orientation advice from the manufacturer on launch day. For makers, it removes the most tedious part of customizing a gadget, which is measuring and reverse-engineering the attachment geometry. The hard part is done, and the creative part is left open.
A practical plan: start with the base Panel file in PLA, printed flat; print a single knob, trying PETG, at a finer layer height; test both before adding anything; and give any embossed artwork enough depth to survive slicing. For a two-speaker Stereo Mode setup, the matched pair is an obvious canvas for coordinated designs.
If CMF settles on a proper home for community uploads, the speakers could build a small remix scene like the one that grew around its phones. Until then, the official STLs are well documented and come from the manufacturer itself.
