Here is an example of a Flex PCB designed using Altium:

1. Start by creating a new Flex PCB project in Altium.
2. Define the board shape and size, and add any required cutouts or notches.
3. Add components to the board, including any connectors, ICs, and passive components.
4. Define the routing rules for the Flex PCB, including minimum trace width and spacing, and any required bend radius.
5. Route the Flex PCB traces using Altium’s interactive routing tools. Be sure to follow the defined routing rules to ensure proper signal integrity.
6. Add vias and other interconnects as needed to connect different layers of the Flex PCB.
7. Once the routing is complete, perform a design rule check (DRC) to ensure that the design meets all of the defined rules.
8. Generate the Gerber files and manufacturing documentation needed to produce the Flex PCB.
9. Send the files to a Flex PCB manufacturer for fabrication.
10. Once the Flex PCB is fabricated, assemble the components and test the board to ensure proper functionality.

This is just a basic example of the design process for a Flex PCB in Altium. The actual design process may vary depending on the specific requirements of the project.

Iflex is Professinal Flex and rigid-flex PCB manufacturer,
welcome to mail us: contact@iflexpcb.com for your any quesiton about Flex and Rigid-Flex PCB.