The Brass Threaded Insert Press is a sturdy and precise tool designed for the heat installation of brass threaded inserts in 3D printed parts.

The model features a solid base with a hexagon-patterned design, providing excellent stability during use. A 2020 aluminum extrusion is mounted vertically on the base, acting as the main guide structure.
A custom-shaped carriage slides along the aluminum profile and can be locked at the desired height using two hand knobs.

Mounted on the carriage is a linear guide, on which a sliding carriage holds the press sled. The sled is available in two versions (long and short) to suit different setups and working heights.
The soldering iron equipped with a dedicated heat-set insert tip is mounted directly onto the sled.

To ensure smooth operation, the sled is connected to the main carriage by two return springs, allowing it to automatically move back to its resting position after each press.

This setup provides controlled, repeatable, and accurate insertion of brass threaded inserts, making it ideal for functional 3D printed parts.
 

Assembly Guide – Brass Threaded Insert Press

1. Parts Check

Before starting, make sure all printed parts, hardware, inserts, springs, and the aluminum 2020 profile are present.

2. Heat-Set Inserts on the Housing (Linear Guide)

Insert 4× M3x5x4.2 brass threaded inserts into the housing using a soldering iron.
These inserts will be used to mount the linear guide.

3. Heat-Set Inserts on the Housing (Springs)

On both sides of the housing, insert 2× M3x6x4.2 brass threaded inserts using a soldering iron.
These inserts are used to fix the return springs.

4. Heat-Set Inserts on the Sled

On the sled:

• Insert 4× M3x6x4.2 brass threaded inserts on the front side
• Insert 2× M3x6x4.2 brass threaded inserts on the side
  Use a soldering iron for all inserts.

5. Mount the Linear Guide

Fix the linear guide to the housing using 4× M3x8 screws.

6. Mount the Sled on the Linear Carriage

Attach the sled to the linear guide carriage using 4× M3x8 screws.
⚠️ Make sure the orientation matches the reference photos.

7. Install the Springs

Fix the two return springs using 4× M3x8 screws.
⚠️ Important: place the shim spacers between the screw head and the spring.

8. Install Knobs on M6 Bolts

Assemble the knobs onto the M6x16 bolts.

9. Insert the Nuts into the Housing

Insert the nuts into the two slots (top and bottom) of the housing.
⚠️ Pay close attention to the orientation of the nuts.

10. Install Nut Hole Covers

Install the nut hole covers.
If needed, use a small drop of glue to keep them in position.

11. Install the Knobs

Screw the knobs into the housing to lock it onto the aluminum profile.

12. Fix the Aluminum Profile to the Base

Attach the 2020 aluminum profile to the base using 1× M6x30 screw.

13. Install the Housing on the Aluminum Profile

Slide the housing onto the aluminum profile.

14. Install the Top Cap

Fix the top cap onto the aluminum profile using 1× M6x10 screw.

15. Install the Soldering Iron

Mount the soldering iron onto the sled and secure it using the sled cover and 4× M3x8 screws.

16. Finish

Your Brass Threaded Insert Press is now fully assembled and ready to use.
Before operation, check that all screws are properly tightened, the sled moves smoothly on the linear guide, and the return springs bring it back to its resting position correctly.