PRINTING ROLLER
thingiverse
Here is a printing roller identical to those found on flexible packaging converting machines. Use two of these rollers to create a reel unwinder for your 3D printing machine. I used a grinded steel bar, Ø6 h7, 250 mm long plus 2 ball bearings, 626 ZZ (Ø6 / 19 x 6), for the shaft.
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