Felix printers Felix 2.0 Instruction Manual page 19

Insert the extruder arm as shown above.
Mount the extruder arm onto the just mounted parts. An m4x40 bolt is
required. Use 4 large washers and 3 curved washer as shown in the
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Assembly instruction manual FELIX 2.0 3d printer
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NOTE: Make sure the bolt goes
picture above.
straight into the nut!
This bolt and washer combination will be used to put some tension on
filament which will be pushed down into the hot-end.
The cad drawing above displays how the sub-assembly should look like.
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