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Use two M2.5 x 6mm bolts to fix the servo onto the backplate.
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Make sure that the servo shaft is centrally aligned with the backplate.
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Insert an M5 x 20mm bolt with a needle bearing and shim.
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M5 x 20mm Bolt
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Thrust Bearing
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Shim
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On the other side of the heatsink slide on another thrust bearing.
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Begin by preparing the backplate with two M3 x 8mm bolts as shown.
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Drop an M5 nut into the back of the Backplate.
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Fix the assembly together, making sure that there is no play in the switching motion.
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The bolt should be tightened down enough to allow the heatsink to rock, but there shouldn't be any play along the axis of rotation or on the plane of contact.
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Fix the Probe mount onto the metal fan and probe mount as shown.
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M3 x 8mm Cap
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Fix the Probe and Fan Mount onto the backplate with just one M4 x 6mm bolt.
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Fix the Angled Fan Mount to the Backplate with one M3 x 8mm bolt.
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Remove the support material from under the angled fan mount before mounting.
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On the front of the assembly, use an M4 x 6mm bolt to secure the angled fan mount.
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Secure the part cooling fan to the mount with two M4 x 20mm bolts.
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Insert the probe here and lightly secure it with an M3 x 8mm bolt.
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We'll be adjusting the height of the probe later.
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Fix the two 30mm fans to the heatsink:
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M3 x 12mm bolt
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M3 x 20mm bolt
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Take the two heater blocks and fix into them the two heater cartridges as shown.
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Fix two thermistors to the blocks. We've shown two high temp. thermistors being installed here, but it is identical for the low temp thermistors too.
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Make sure to match the orientation as shown in the photos. The two assemblies should mirror each other.
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Fix onto both the heater blocks, the heatbreak.
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and the nozzle.
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Make sure that the nozzle is tight against the heatbreak, but leave a slight gap between the nozzle and heater block when tightening. The nozzle will need to be tightened again when hot.
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Prepare the heatsink by inserting two M3 x 12mm bolts onto each side.
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Take the two heater block assemblies from the previous step and push them into the heatsink.
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With the heater block assemblies pushed in all the way, tighten the bolts to secure them in place.
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Note the orientation in the image. The heater side of the block should be facing forward.
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Break the support material away from the fan shroud.
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Clip the fan shroud onto the blower fan as shown.
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Install the X-Endstop as shown.
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Note that the X-Endstop is the one with the longer 2M cable.
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M2.5 x 12mm Bolt
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M2.5 Nyloc Nut
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Lay the DSH assembly onto the platform and arrange the cables as shown
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Left Hotend and blower fan cables
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Servo and Probe cables
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Right Hotend cables
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Bring the X-Endstop cable around to the front of the gantry.
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Route the probe cable behind the tool carriage.
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Push the servo into the hole in the tool carriage along with its cable.
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Take the cables from the right hotend and place them over the servo.
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Press the DSH assembly onto the tool carriage, make sure that none of the cables are getting pinched.
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Tighten the two M3 x 8mm bolts. Do this in alternation in order to allow the hotend to rotate out of the way.
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Finally, use two M3 x 8mm bolts to completely secure the DSH to the carraige.
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Cable tie together the heater, thermistor and 30mm fan cables from each hotend.
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Cable tie the right hotends cables to the backplate also.
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Ensure that when parked the highlighted part of the right hotends cables are horizontal.
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Connect the servo cable to the servo extension cable as shown.
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Use tape to mark, in this case, the right hotend heater cables and thermistor.
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Take the hotend heatsink fan cables and use side cutters, scissors, or wire strippers to remove the connectors from their ends.
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Strip away the outer sleeving to expose some of the wire.
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Wrap the black and red wires together as shown.
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Wrap the cables with the braided cable sleeving.
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Cable tie the cables to the backplate as shown.
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Push the tool carraige to the bottom left of the print area.
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Use cable ties to secure the loom to the rear of the top panel.
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Feed the loom of cables into the base and secure with a cable tie.
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Adjust the ooze shields by bending the metal sleds until they are able to make contact with the tips of both nozzles.
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The Hotend covers simply slide in place over the heater blocks.
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