What are the two orange sticky-up things on the purge wiper for?

Just purely out of curiosity, can anyone advise what the purpose of the two orange things sticking up at the back of the purge wiper are?

Given the screws in them, I’m guessing it’s something to do with swapping the unit out but that seems a bit convoluted?

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The screws secure the rollers, and the toolhead activates the levers to operate the wiper and filament knocker.

Replace H2D Purge Wiper

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Reach your hand in and push on them. They are both levers that move parts of the purge mechanism. Normally the printhead would push against them to move the purge mechanism up/forward

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I had this same question but never asked so thanks!

BTW props on using the term “orange sticky-up things”!! Probably the best term that could be used for them!

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I always thought it was funny yet kind of clever that instead of having an extra motor do the work Bambu just have the print head push into things! :joy:.

Need to fling poop? Have the print head push and release a lever. Need to cut the filament? Print head pushes into the cutter lever. Need to move the nozzle wiper back and forth? Just have the print head push a lever!

I suppose this saves them from having extra motors doing the work. Though the H2D filament cutting levers are really something kind of complicated they made not to mention loud and the head has to go somewhat far to activate the left or right lever. In this case maybe a small actuator would have been an option though the print head is already weighted down.

I just bought two filament cutter levers as spares, and they are not as complicated as you’d think. Pretty basic design.

I mean the entire apparatus not simply just the levers. All the levers and cutters do is physically cut the filament but it’s the how it achieves this that is interesting. I’m talking about the area that the lever press on and those black short arms that go back and forth flipping forward and sideways as the print head moves all the way back and forth activating the area. They are on both sides of the printer and make contact with each lever. It definitely has a good bit of engineering work there. I wouldn’t call that simple.
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I think the main goal is to make the printhead as light as possible. So the less belts/motors that are directly attached or connected the better.