I printed a cooling nossle and it like it looks like crap can someone help

Check the stepers x mm of z motors

Going to need a lot more info otherwise any advice is simply guessing.

Slicer, filament type, temps, speeds, etc.

Right now o am using cura. Hatch box pla, 190 heat 60 speed 60 bed heat

I’d slow way down. 35-40mm/s. Temps seem ok but you could reduce the bed a little after the first layer as long as adhesion remains ok.
Does this printer have a parts cooling fan? If so it needs to be on at full power after the first layer. If not get one! You can also set up a smaller desk fan to help cool a bit but just try to not aim it directly at the nozzle!

Hi @Pyles26, I too use those crappy A8 and I did have a very similar issue printing the exact same part. Yours seems accentuated when compared to mine but I assume you are using the flexible acrylic default frame which would explain the higher noise gain since I use a metal frame with custom reinforced rod holders.

When my parts were turning up like yours I went crazy, fiddling all the settings, temp, speed, etc. then I moved to the mechanics were I changed the extruder wheel, the extruder motor, proper belt tension, re-squared the machine with a dial indicator, everything.

But the issue persisted.

Until, out of despair, I tried those stepper smoothers and wow. I just could not believe.

Here is a comparative print of :
[smoothers on all axes, no smoothers, smoothers on extruder only]

I dont understand exactly how electromagnetically those diodes can have so much impact and how not having them produce a repeatable pattern, but I think it is definitely worth a shot.

You could start by printing a cylinder see if there is a repeatable pattern.


Here is the metal a8 referenced before if you are interested.