Spring-Loaded Phone Holder for Microphone Arm (1/4" Mount)
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Spring-loaded phone holder (70–90mm) with standard 1/4" thread for tripods, mic arms, and mounting rigs!
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Portable Devices
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- Creative Commons — Attribution — Noncommercial — Share Alike
Spring-Loaded Phone Holder for Microphone Arm (1/4" Mount)
A few weeks ago, I unexpectedly needed to record a top-down video for a project due in two days. I already had a microphone arm with a standard 1/4" mount, but I didn’t have a compatible phone holder. There wasn’t enough time to order one online, and I couldn’t find anything locally, so I designed and 3D printed my own.
This holder mounts directly to a 1/4" threaded arm and uses springs from cheap pens to securely grip your phone.
This design it useful not only for microphone arms, but also for tripods, overhead rigs, and other camera setups.
Features
Spring-loaded grip using two 25 mm pen springs
Standard 1/4" mount compatibility (microphone arms, tripods, overhead rigs, etc.)
Gear tooth grip texture on contact surfaces to improve holding strength
Compact, lightweight design
Fully printable with minimal hardware
The gear tooth texture improves friction between the holder and the phone, helping prevent slipping without needing excessive spring force.
Hardware Required
2× springs, approximately 25 mm long
Springs from inexpensive ballpoint pens work perfectly
2× M2×7 tapping wood screws
No nuts or threaded inserts required
Printed Parts
The holder consists of three printed components:
Right Side – main structural body with mount
Left Side (Sliding Component) – moves to clamp the phone
Top Plate – holds both halves together and keeps the sliding part captive
Assembly Instructions
Install the springs: Push the two springs onto the cylindrical posts on the sliding (left) component.
Join the two sides: Insert the sliding component into the slot on the right side component. Align the springs so the free ends rest against the flat spring seats on the right side.
Note: This design is optimized for ~25 mm springs. If your springs are longer, you may need to compress them slightly using a screwdriver or similar tool during assembly.
Install the top plate: Place the top plate over the assembly. Secure it using two M2×7 tapping wood screws.
The top plate keeps everything aligned while allowing the sliding mechanism to move freely.
Customization
If you want to adapt the design, I have attached the SolidWorks file so you can easily modify:
Spring length compatibility
Top plate screw size
Phone width range
Mount geometry