Heat-set Insert replacement holder for Weller soldering iron WEP70 connected to Dremel 220 Drill Press

I have designed two 3D-printed models to create a simple connection between the drill stand from Dremel (model name 220) and the soldering iron WEP 70 (station WE1010) from Weller. The main goal is to enable the vertical insertion of threaded inserts into 3D-printed parts by melting them in with precision.

Depending on the size of the threaded insert, a specific soldering tip is required. For this reason, I have added seven mounting holes into the adapter to accommodate soldering tips for thread sizes M2, M2.5, M3, M4, M5, M6, and M8. This allows for flexible use of the adapter with different insert sizes, ensuring that each threaded insert can be melted in accurately and securely.

To achieve a straightforward and reliable fixation of the Weller WEP 70 soldering iron to the adapter, I implemented a two-shell system featuring a print-in-place hinge mechanism. This design allows the adapter to securely enclose the soldering iron without requiring additional fasteners or assembly steps. The print-in-place hinge enables the shells to articulate and lock around the soldering iron, ensuring both ease of installation and robust mechanical stability during operation.

For assembling the two 3D-printed parts, you will need two countersunk screws with M4 threads and a length of 20 mm. If you have an M4 set screw with a length of 20 mm available, you can also print the rotary knob as part of the assembly. Alternatively, a second countersunk screw can be used in place of the set screw.

If you have any suggestions for improvement or comments regarding this design, please feel free to share them below. I would also greatly appreciate a like if you find the design useful.