For those who have purchased the new Ender 3 printer and are equipped with press-fit pulleys, this is a simple and practical solution. If you want to disassemble or replace these pulleys to install stepper motor shock absorbers or other modification parts, this tool will be very helpful.

In addition, you also need to:

• One
• An M5 nut. I bought one for 45 cents at the hardware store.
• Pulley heads with set screws. I bought a pack of five for $7 on Amazon.
• An Allen wrench that matches the size of an M5 screw. I used the largest wrench that came with the Ender 3.

Disclaimer:
This design is not my own work, and I do not claim any authorship or responsibility for it.
To support the original author, we welcome you to visit his blog to learn more about him:https://mesimpressions3dmaison.blogspot.com/p/extracteur-de-poulie.html
The main reason I'm sharing this solution is to provide a more convenient solution for users who are trying to install shock absorbers on stepper motors. However, the original author only provides content in French. Even so, please be sure to check out his blog. He has many other excellent works worth taking the time to appreciate.