I ordered this to replace the plastic extruder that came with my Creality CR-6 SE printer. I wasn't a fan of the OEM extruder because I didn't see the working parts and wasn't sure if it wouldn't break. I decided the best thing to do is to replace it before I run into any problems. Installation was easy and only took a few minutes. It took me longer to remove the old extruder than to install the new one. I had a similar type of extruder but it was red instead of gray. The only difference I could tell between the two was that this one has the ability to increase spring tension to grab thread with adjustable pressure. Exchange of extruders. This one is much better for several reasons. 1. You can see the whole mechanism so you can see if there is any slipping, grinding or tooth filling with ground plastic.2. You can visually see how the spring tension is adjusted compared to the original where it was hidden.3. New thread is easier to insert as you can see the holes it needs to be threaded through.4. It is not plastic under constant heavy spring tension. This is a good inexpensive upgrade that just plugs in and works.
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