Switch Extruders

Now, remove all the bolts EXCEPT that one near the dog ear (near the Bowden connector). Now the stepper is hanging from one bolt, which is ok for now. Pull the plate straight up and put it away. The Bowden connector an bracket come away also.

Now take a longer 3mm bolt and use it to temporarily fasten the MK8 base plate through the hole that has a little depression in the plate. This is the bolt that will be under the handle when things are done and you will want a shorter bolt there but not now.

Make absolutely sure that the stepper is engaged on the bolt threads but keep it fairly loose. Do not tighten it down. Once you are sure the stepper won't get away from you, twist the plate as far away from the "dog ear" bolt as you can. The gear will keep you from getting it totally clear. With a little effort, you can take that bolt out now.

Once that bolt is out, move the plate to its proper position and tighten the loose temporary bolt until the stepper is flush with the panel. Now put the two long bolts that are on the filament exit side of the plate in. Once they are in, remove the temporary bolt, and put in the proper bolt (which is quite short).