Open Hardware
Assembly Instructions

Place 1x LDO geared stepper motor [EL-MT0084] inside the Z lower left motor jig, then slide 1x 16 teeth timing pulley [HD-MS0033] on the motor shaft making sure one of the set screws on the pulley is aligned with the flat side of the motor shaft.

While pushing down on the timing pulley torque the set screws to 3 in*lb.

Using the bearing punch and 1x rubber sealed bearing [HD-MS0411] and Z lower left [PP-GP0697] press the bearing into the Z lower left.

Then align the motor with the Z lower left so that the connector is on the opposite side as the smooth rod holes.

Use the sample belt to cut 1600mm of the 6mm belt [HD-BL0037].

Before fully sliding the motor into the Z lower left, loop and feed the belt through the hole between the two smooth rod holes and loop it around the timing pulley.

Then push the motor so that the shaft goes through the bearing while making sure the connector is on the opposite side of the smooth rod holes.

Once the motor is placed inside the Z lower left secure using 4x M3x10 BHCS [HD-BT0148] with M3 washers [HD-WA0038].

Take the Z upper left [PP-GP0358] and place it on the Z upper top plate [PP-FP0156] making sure the square hole aligns with the three holes in the Z upper top plate.

While holding the two parts together flip them over so that the Z upper top plate is on top, then secure them together using 4x M3x10 FHCS [HD-BT0116].

Now take the switch [EL-MS0022] and place it on the table as shown in [reference#1] then take the base of the switch and bend it upwards so the tabs are bent to 90 degrees.

Verify that the button is on the left side when the tabs are on the top and pointing up. If the button is on the right bend the tabs the other way.

Now slide 2x M2x10 SHCS [HD-BT0107] with M2 washers [HD-WA0012] through the side of the switch that the tabs pointing.

Then fasten the switch to the Z upper left.

With the Z lower left and Z upper left resting on their flat sides run the belt under the X motor mount with the teeth facing up.

Now use 1x YZ idler [PP-MP0225], 1x M5x20 SHCS [HD-BT0151] and 2x rubber sealed bearings [HD-MS0411] to assemble the YZ idler.

Then take the YZ idler and place it on the table with bolt head facing up and feed the belt around the bearings making sure to start on the right side.

Then pull the YZ idler up to the Z upper top plate and attach it using 1x M5x12 BHCS [HD-BT0158] with a M3 washer [HD-WA0040].

Pull both ends of the belt back to the X motor mount and slide the Z axis belt clamp [PP-GP0689] over the ends of the belt aligning it with the X motor mount.

Then use 2x M3x10 BHCS [HD-BT0148] with M3 washers [HD-WA0038] and secure one end of the belt to the X motor mount.

Now pull on the other end of the belt to tighten it, if the belt is not getting tighter loosen the two screws.

Once the belt is tight use 2x M3x10 BHCS [HD-BT0148] with M3 washers [HD-WA0038] to secure the other end of the belt to the X motor mount. If you had to loosen the first two screw tighten them.