Section 3: Gantry Assembly¶

3.1 Gantry Extrusion¶

Parts and Tools Required¶

3.1.1 Extrusion Assembly¶

3.1.1.1¶

• Slide T-Nuts into the indicated gantry extrusion t-slots.

3.1.1.2¶

• Position the T-Nuts as indicated.

3.1.1.3¶

• Slide T-Nuts into the bottom gantry extrusion t-slots.

3.1.1.4¶

• Orient the T-Nuts as indicated.

3.1.1.5¶

• Repeat these steps to install T-Nuts on the other side of the gantry extrusion.

3.1.1.6¶

• Install a Gantry End Cap on one end of the extrusion.

3.1.1.7¶

• Fully tighten the Gantry End Cap fasteners.

3.1.2 Gantry Extrusion Installation¶

3.1.2.1¶

• Carefully lower the gantry extrusion onto the risers.
• Note the orientation of the extrusion, with the end cap on the indicated side.

3.1.2.2¶

• Bring the End Cap flush with the Interface Plate as indicated.

3.1.2.3¶

• Position the gantry 150mm (5-7/8") from the end of the Gantry Interface Plate as indicated.

3.1.2.4¶

• Install an additional two M8 Roll-in T-Nuts into the bottom of the extrusion as indicated.
• These parts will be located in the CRP830-00-FAST-XTD fastener bag.

3.1.2.5¶

• Fasten the gantry extrusion to the gantry interface plate as indicated.

3.1.2.6¶

• On the side with the End Cap, attach the gantry to the Interface Plate as indicated.
• Partially tighten these fasteners.

3.1.2.7¶

• Align the T-Nuts in the gantry extrusion with the holes in the Joining Plate.

3.1.2.8¶

• Thread the socket head cap screws into the T-Nuts as indicated.

3.1.2.9¶

• Fully tighten all 14 of the Joining Plate fasteners.

3.1.2.10¶

• Fully tighten the all the Gantry Interface Plate fasteners.

3.2 Gear Rack¶

Parts and Tools Required¶

3.2.1 Gear Rack Assembly¶

3.2.1.1¶

• Partially thread the indicated fasteners into the gear rack.

3.2.2 Gear Rack Installation¶

3.2.2.1¶

• Slide the gear rack into the indicated t-slot on top of the gantry extrusion.

3.2.2.2¶

• Position the gear rack 70mm (2-3/4") from the right end of the gantry extrusion as indicated.
• Fully tighten the gear rack fasteners.

3.2.2.3¶

• Using the Gear Rack Splice, clamp the two sections of gear rack together to align the teeth.
• Fully tighten the gear rack fasteners before removing the clamps.

3.3 Linear Rails¶

Parts and Tools Required¶

3.3.1 Linear Rail Assembly¶

3.3.1.1¶

• Partially thread fasteners into the linear rail as indicated.

3.3.1.2¶

• Repeat the previous step to assemble the other linear rail.

3.3.2 Linear Rail Installation¶

3.3.2.1¶

• Slide the assembled linear rails into the indicated gantry extrusion t-slots.

3.3.2.2¶

• Install the other Gantry End Cap as indicated.

3.3.2.3¶

• Fully tighten the Gantry End Cap fasteners.

3.3.2.4¶

• Install and partially tighten the M8 x 35mm fasteners.

3.3.2.5¶

• Install the remaining Joining Plate fasteners as indicated.

3.3.2.6¶

• Fully tighten all 14 of the Joining Plate fasteners.

3.3.2.7¶

• Fully tighten all Interface Plate fasteners.

3.3.3 Linear Rail Alignment¶

3.3.3.1¶

• Attach a Rail Alignment Jig at one end of the gantry as indicated.

3.3.3.2¶

• Fully tighten the Rail Alignment Jig fasteners.

3.3.3.3¶

• Clamp the end of the rail to the Rail Alignment Jig as indicated.

3.3.3.4¶

• Repeat the previous step to clamp the other side of the rail.

3.3.3.5¶

• Fully tighten the fasteners of the clamped linear rail only.
• After tightening the fasteners, remove the clamps and Rail Alignment Jigs.

3.3.4 Linear Bearing Block Installation¶

3.3.4.1¶

• Thread grease fittings into the linear bearing blocks as indicated and hand tighten.
• Orientation of the linear bearing block reference edges is not important for installation on the gantry.

3.3.4.2¶

• Slide the linear bearing blocks onto the rails as indicated, with grease fittings facing away from each other.

3.4 Gantry Bumper Plates & Sensor Flags¶

Parts and Tools Required¶

3.4.1 Bumper Plate Installation¶

3.4.1.1¶

• Attach the bumper plate to the gantry end cap as indicated.

3.4.1.2¶

• Repeat this process to install a bumper plate on the other side of the gantry.

3.4.2 Gantry Sensor Flags¶

3.4.2.1¶

• Attach a sensor flag to the gantry extrusion as indicated, partially tightening the fasteners.

3.4.2.2¶

• Position the sensor flag 38mm (1-1/2") from the joining plate as indicated.

3.4.2.3¶

• Bias the sensor flag towards the top of the gantry extrusion as indicated.
• Fully tighten the fasteners.

3.4.2.4¶

• Repeat this process on the other side of the gantry.

3.4.2.5¶

• Attach a sensor flag to the gantry extrusion as indicated.
• Partially tighten the fastener.

Machines purchased prior to March 2021

Machines purchased prior to March 2021 use a shorter CRP831-02 Sensor Flag. Install the flag in the orientation shown below. The remaining installation steps are applicable for either size sensor flag.

3.4.2.6¶

• With the sensor flag flush against the joining plate, bias the sensor flag towards the top of the gantry extrusion as indicated.
• Fully tighten the fasteners.

3.4.2.7¶

• Repeat this process on the other side of the gantry.

3.5 Gantry Carriage¶

Parts and Tools Required¶

3.5.1 Gantry Carriage Installation¶

3.5.1.1¶

• Attach the gantry plate to the bearing blocks as indicated.
• Fully tighten all fasteners.

3.5.1.2¶

• Slide the gantry plate to one end of the gantry.
• Tighten the three indicated linear rail fasteners near the gantry plate.

3.5.1.3¶

• Slide the gantry plate to the other end of the gantry.
• Tighten the three indicated linear rail fasteners near the gantry plate.

3.5.1.4¶

• Fully tighten the remaining lower linear rail fasteners.

3.5.1.5¶

• Install dowel pins into the gantry R&P plate as indicated.

3.5.1.6¶

• Attach the gantry R&P plate to the gantry plate as indicated.
• Fully tighten the fasteners.