====== VOL-25 ======

Official info: http://hyrel3d.net/wiki/index.php/VOL

===== Loading Cylinder ===== 
  - Unscrew the cylinder front collar
  - Slide cylinder down in the toolholder
  - Tighten the 3 bolts of the toolholder
  - Reattach front collar to the cylinder


===== Removing Cylinder ===== 
  - Unscrew the cylinder front collar
  - Unscrew the 3 bolts of the toolholder
  - Slide cylinder upward