3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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First layer woes - looking for advice (lemmy.world)

submitted 1 year ago by [email protected] to c/[email protected]

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Hi folks, I've had my ender 3 v2 for around 2 years and it's been trouble-free until lately. Recently, I've had major issues with the first layer. I found a few worn components, so I got a dual gear extruder and replaced the nozzle, recald the esteps, bed level and z offset. Nothing I do seems to work.

The issue happens on the first layer when it first starts to extrude. The first 5mm or so of extrusion curls up behind the nozzle, then the extrusion sticks to the bed and it continues normally... Until it needs to starts a new extrusion, then the same thing happens...the curl.

I have to think it's something with temperature, but I haven't changed anything about the filament since these issues started.

Looking for any advice. Thanks!

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[–] [email protected] 1 points 1 year ago

Thanks for that link. I wouldn't be surprised if this is my issue. I replaced a nozzle very recently and it seemed to improve things, but it quickly degraded. I also replwced the PTFE tube and likely did it wrong...though the symptoms existed before I replaced the tube. I also have a fan that has been on its way out for a while, so I could be getting heat creep. It could be a combo of all things. Either way, I have new fans on order and will be doing the rebuild. Thanks!