Gravity Phone Mount & Articulated Arm

Tired of flimsy phone mounts that sag, wobble, or require metal hardware? Meet the ultimate heavy-duty, 100% 3D-printable modular arm station. Combining a premium smart gravity-locking holder, an engineering-truss articulated arm, and a rock-solid reinforced C-clamp, this professional-grade system is built to secure heavy flagship smartphones with absolute stability. Features Designed for maximum practical stability, modularity, and convenience, this system includes the following key engineering features: - Smart Gravity Locking Upper Unit: - Automatic Drop-and-Lock: Simply place your phone on the cradle. The phone's weight triggers the side clamps instantly via a synchronized 4-bar linkage system.

- Zero Tilt, Parallel Precision: Dual arc links on each side ensure the jaws stay perfectly vertical, eliminating any unwanted tilting or misalignment.

- Elastic Band Return: Uses a simple rubber band on the back to automatically snap open the clamps the moment you lift your device.

- Drop Safety Catch: An integrated vertical limit pin ensures the slider mechanism never over-extends or slips out under extreme movement.

- Truss-Core Modular Articulated Arm: - High-Rigidity Truss Profile: Designed using structural engineering principles with integrated triangular cutouts. This maximizes bending and torsional resistance while keeping the weight minimal.

- Dead-Lock Hirth Joints: Connections feature an 18-tooth radial gear mesh with a 20° adjustment index and 0.5 mm tooth height. Once tightened with the heavy-duty M10 knobs, it guarantees zero-slip mechanical locking under heavy load.

- L-Pivot Horizon Compensation: The specialized L-shaped head isolates the tilt and rotation axes, allowing you to perfectly level your camera horizon or position the mount upside-down without dead zones.

- Power-Grip Stiffened C-Clamp Base: - Reinforced Structural Frame: The heavy C-shaped clamp features 4 external stiffening ribs to completely prevent plastic flexing under high static tension at maximum arm extension.

- 15mm Power Screw & Swivel Pad: Features a massive 15 mm primary screw with an ergonomic hand-turn knob and a rotating flat pressure foot that maximizes surface grip while protecting your desk from scratches.

- 360° Free Pan & Multi-Screw Versatility: The L-Base connector allows smooth 360° free horizontal rotation (yaw) without loosening, while the package includes three separate bolt lengths (20, 40, 60 mm) to perfectly fit any desk thickness.

Technical Specifications Key dimensional, functional, and mechanical parameters for this model are detailed in the specification table below: Parameter Value / Metric Mechanical Advantage

Clamping Range 70 mm – 118 mm Fits 99% of modern smartphones with thick cases

Max Device Thickness 13 mm Fully compatible with heavy armor/rugged cases

Modular Arm Lengths 100 mm / 150 mm / 200 mm Mix and match lengths to customize your total reach

Arm Joint Indexing 18 teeth (20° steps) Mathematical precision for predictable angle settings

Max Desk Thickness Up to 40 mm Fits securely on thin glass shelves or thick workbenches

Hardware Standard Custom M10 & M15 Threads Heavy-duty printed threads optimized for tool-less hand tightening

What You'll Need To fully assemble this model, you will need the following non-printed components: - Elastic Rubber Band: 1x standard small elastic/rubber band (installed on the back of the phone holder to activate the automatic return mechanism).

How to Assemble Follow these detailed step-by-step assembly instructions to build the three main modules of the phone mount system: Phone Holder Follow these steps to assemble the gravity phone holder unit: - Print List: 1 HolderBase, 1 HolderBottom, 1 HolderBottomStopper, 1 HolderSideLeft, 1 HolderSideRight, 2 HolderArcLeft, 2 HolderArcRight, and 10 HolderShims. - You can use the provided .3mf file, where all of these objects are already arranged on the build plates.

- Tip: Try printing HolderArcLeft, HolderArcRight, and HolderShim on a smooth, non-textured plate. This will help the holder slide more smoothly.

- Take the HolderBase and place one HolderArcLeft and one HolderArcRight onto the middle pins, ensuring the arrows on the arcs are pointing inward. - Tip: For better sliding and a cleaner look, it is best to place the arcs with the build-plate side facing away from the base.

- Secure the arcs using two HolderShim clips. Try to slide, it should be easy.

- Slide the installed arcs inward, then position the HolderBottom part so that the middle pins fit into the holes on the arcs.

- Place the HolderBottomStopper into the cutout on the HolderBottom part and into the hole in the HolderBase.

- Place the second HolderArcLeft and HolderArcRight onto the bottom pins of the HolderBase and the outer pins of the HolderBottomStopper, ensuring the arrows point inward.

- Lock the arcs in place with four more HolderShim clips. - Tip: Test the slider. It should move easily; if it is too stiff, check the pins for any remaining support material or try reducing the height of the clips.

- Insert the HolderSideLeft part into the left side of the arcs so the pins fit into the holes, then secure it with two HolderShim clips.

- Repeat this process for the HolderSideRight part on the right side.

- Choose an elastic band size that allows the holder to compress the bottom part snugly, but without pushing the phone out of the mount when it was installed.

Holder Arm Follow these steps to assemble the articulated arm module: - Print List: 2 ArmBig (either 2 ArmMiddle or 2 ArmSmall if you want another size), 1 ArmHingeFirstPart, 1 ArmHingeSecondPart, 1 ArmBoltBig (20 mm with big cap), 1 ArmBoltMiddleHinge (16 mm with small cap) and 2 ArmBoltSmallHingeConnect (12 mm with small cap). - You can use the provided .3mf file, where all of these objects are already arranged on the build plates.