1
Z-Axis Assembly
Replacement / Adjustment
TOOLS NEEDED:
1 Set of L-Shaped Allen Wrenches
3 blocks of wood, plastic, or acrylic cut to approximately 2 inches by 3 inches
Household grade White Lithium grease
Flashlight
Left Side Z-Plate Removal and Replacement (if required)
1. Figure 1 – Turn the laser system OFF and unplug it. Remove the Table by removing the (2)
Flathead Screws on top on the left side. Remove the (2) Sockethead Screws underneath
the table on the right side. Do not remove the Brackets that the Table is attached to. Leave
the Brackets in the machine. Slide the Table out the Front Door.
2. Figure 2 – Remove the Belt Cover by removing the (6) Buttonhead Screws that attach the
cover to the inside bottom of the laser system (not shown). Loosen Z-Axis Belt by loosening
the Lockdown and the Pivot Screw on the Tensioner Bracket (do not remove, only loosen).
Slide Bracket towards you to loosen. Remove the (2) Idler Pulleys on the left side by pulling
them straight up and off of their pins. The Z-Axis Belt should now be loose enough to work
around. It is not necessary to remove the Z-Axis Belt from the system unless you are
changing it.
3. Figure 4 – Remove the (3) Lockdown Screws, the (1) Pivot Screw, and remove the entire
Left Side Z-Plate with everything attached to it. Install the new Left Side Z-Plate the same
way you removed the old one except make sure that the (3) Lockdown Screws are visually
centered within their respective slots. The Plate can be rotated around the Pivot Screw.
4. Figures 3 & 4 - Place (2) Blocks on top of the Bracket and rotate the Belt Pulleys until both
blocks are lightly clamped into place as shown in the diagram. The purpose of this is to get
Table Mounting Plate perpendicular with the Left Side Z-Plate and the Lead Screws. This
creates the least amount of turning resistance for the entire Z-Axis System.
5. Figure 5 – Place the third block on top of the Bracket on the Right Side Z-axis and adjust the
Belt Pulley until the block is clamped into place as shown in the diagram.
6. Figure 6 – Leaving the blocks in place, re-attach the Z-Axis Belt, Idler Pulleys and adjust the
Tensioner just enough to take out the slack. Too tight will cause excessive resistance, too
loose will make the action sloppy and might cause the belt to slip. The objective is just to
take out the slack. Now tighten down the Tensioner Bracket Lockdown and Pivot Screws.
7. Remove all (3) Blocks from the machine.
8. Figure 1 - Re-install the Table. Install and tighten the Flathead Screws on the left side first,
then install and tighten the Sockethead Screws on the right side second.
