This is a fully 3D printed heat insert press built for precise, hands-free installation of threaded inserts into plastic parts. The robust vertical rail and adjustable swing arm allow you to align your soldering iron perfectly over your workpiece, keeping inserts straight and consistent every time.

Materials Used

Printed Parts:

Frame & Arm: PAHT CF (carbon-fiber-reinforced nylon for high rigidity and heat resistance)

Accents: Red PETG for durability and visibility

Wheels: TPU for AMS to ensure smooth, comfortable actuation

Hardware:

Inserts:

2× M4 heated inserts (6×4 mm)

Spring:

1× 7×51 mm pull spring (automatically lifts the arm back up after pressing)

Screws & Nuts:

2× M4×8 mm screws

1× M4×12 mm screw

2× M4×16 mm screws

6× M4×20 mm screws

2× M4×25 mm screws

4× M4×35 mm screws

2× M4 nuts

Bearings:

2× 608ZZ bearings (provide smooth pivoting)

Features

✅ Adjustable Arm: Set the height and swing the iron into place in one motion

✅ Spring Return: Compression spring automatically raises the arm after each use

✅ Bearing-Assisted Pivot: Dual 608ZZ bearings deliver smooth, controlled movement

✅ Ergonomic Grip: TPU details improve handling and comfort

✅ Stable Base + Storage: Rigid base resists tipping during pressing and includes 8 slots to store inserts and tips

Printing Notes

PAHT CF is recommended for structural and heat-exposed parts

PETG and TPU parts add color, flexibility, and improved ergonomics

M4 fasteners ensure everything stays secure and precise

Perfect for makers who want a reliable, clean way to install heat inserts, no shaky hands, no crooked results.