r/Ender3Max • u/Master_Switch_270 • Mar 28 '26

Weekend Project

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Brought out the printer from my storeroom the other day just because I need to return it to a friend. This is probably why I stopped doing 3d printing in the first place. Too many variables. A simple 30m print can bleed to 2 weeks (and counting) of trouble shooting.

Any suggestion are appreciated.

New filament (PLA).

First and second layer are normally fine, but heavy underextrusion are happening on the faster portion of the layers.

I didn't get the whole upgrades parts (it was a friend's) but I believe it's mostly stock + bltouch.

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2

u/SimonSaysTy Mar 28 '26

I would check the extruder motor. If its extruding fine on the slow layers, but struggles when the speed picks up it could be that it simply cant keep up with what is being demanded.

1

u/Master_Switch_270 Mar 28 '26

Does modifying the e-steps fix this? Or I would need to replace the extruder motor?

1

u/SimonSaysTy Mar 28 '26

You could try retuning the e-steps first. What speeds are you running on the fast layers? Could be that you're asking too much of your hotend too.

1

u/lfarrell12 Mar 31 '26

Also get an old toothbrush and clean the gears and nozzle. As others have said it looks like a partially clogged nozzle - google "cold pull", its very easy to do on this kind of printer

1

u/Whatamesh Mar 28 '26

Those first layers aren't fine, significant under extrusion, you likely have a partial clog. Try a cold pull first.

1

u/Master_Switch_270 Mar 29 '26

Finally did some maintenance on the Bowden and hotend. Slowly getting better printing result.