PRINTING ROLLER

Here is a printing roller, the same as the rollers you can find on flexible packaging converting machines.
You can use for instance two of these rollers to build a reel unwinder for your 3D printing machine.
For the shaft, I used a grinded steel bar Ø6 h7 lenght 250 mm + 2 ball bearings 626 ZZ (Ø6 / 19 x 6)

Enjoy !