Backseat CEO: The Headrest Phone Mount That Means Business

Road trips. Backseat Netflix. Data logging experiments. Whatever your mission, this headrest phone mount shows up ready to work.

Designed for versatility and strength, this mount uses 9.5 mm diameter dowel rods (easily available at Walmart - 3/8" x 12" Dowel Rods) and a combination of hex hardware to keep everything solid and adjustable. It’s not just a mount — it’s a mechanical handshake between practicality and clever design.

Hardware Breakdown

• 2 × M2 hex head screws with nuts (phone clamp to dowel rod clamp)

• 4 × M3 hex head screws with nuts (phone clamp to the support plate)

• 4 × M8 hex head screws with nuts (mounting arms to joining links)

• 4 additional M3 hex head screws (mounting arms to dowel rods and headrest rod)

The mounting arms slide smoothly over 14 mm headrest rods, making it compatible with most vehicles. I’ve shared one set of arms and links — you’ll need to print it twice to secure both sides and hold the dowel rod horizontally.

Printing Recommendations

This mount lives in a car. Cars get hot. PLA will surrender in summer. Don’t use it.

Use PETG or ABS for durability and heat resistance.

• 4 perimeters

• 50% infill

• Preferably print in white to reduce heat absorption

Let parts cool fully before removal to prevent warping.

Why This Mount?

Because tablets hanging from elastic straps look like a middle school science project.
Because duct tape is not an engineering solution.
Because adjustable, modular hardware beats flimsy plastic every time.

The arm angle can be tuned simply by tightening or loosening the screws. Need to mount sensors for in-car research? Larger screens? No problem. This platform is flexible enough to handle it.

It’s sturdy. It’s modular. It’s built like it belongs in a lab — but works perfectly on a road trip.

Because duct tape isn’t a mounting solution.

Holds steady when the road doesn’t. 🚗📱

If you like the model, please boost it, share, show your 3D print, and show some love in the comments.