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We're working on the final revision.
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Assemble your FRS unit. If you are using printed parts for the housing and cover, ensure that they fit together well.
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Be sure the bearing rotates freely without interference from any printed protrusions.
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Be sure the filament guide protrusions fit together well and provide a clear filament path free of obstructions.
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DO NOT drop the ball bearing. (you will never find it again)
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When everything is good, do your final assembly with two screws.
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FIRST: Unplug your printer from the AC line voltage. Risk of electric shock!
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Remove the cover(s) to access the Duet controller.
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Plug one end of the KK wire harness into the E0 (and E1 if installing both) end stop switch header(s) of the Duet controller.
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Route the wire harness to the extruder.
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Re-install protective covers so no AC line voltage is exposed so the printer is safe for operation.
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It's a snap, really. No tools required.
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Just insert long peg, rotate and gently lift, and snap short peg into hole.
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Plug in wiring connection.
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Go to the Duet control screen: go to "Settings", then "System Editor" then click "New File" <<SEE PICTURE>>
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Name the new file (no quotes) "trigger2.g"
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Enter 2 lines of code as follows and save: <<SEE PICTURE>>
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M84 E0:1
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M25
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And the sys folder will show the new file. <<SEE PICTURE>>
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Open the system folders.
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CLICK on "config.g" file to open and edit.
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Don't be concerned if your config.g file looks a little different from the picture. Don't change your file. Just add to it.
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Add the new lines below comments for the hotend fan. The new lines are shown in the photo and below, then save
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M591 D0 P2 C3
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M581 E0:1 S0 T2 C0
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Power cycle your printer.
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