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Jan 2018
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Jan 2018
Dec 2018
Ausimax
Jan '18

Hi,

I am new to 3D printing, received Anet A8 printer for Xmas, and after assembling it I have been getting good quality prints until now!

Computer running Windows 10

Part designed in FreeCad 0.16

Sliced in Cura 14.07

I have a later version of Cura but 14.07 seems the most compatible with the printer, I print directly from a SD card the printer is not connected to the computer.

This morning I attempted to print this part:

[img]https://i.imgur.com/SyxI5Ab.jpg\[/img\]

[img]https://i.imgur.com/tcqj8Nz.jpg\[/img\]

This is the resulting print, there was a bit of stringing of filament during travel but the main problem was it occasionally deposited great globs of plastic at random, some I managed to pick off with tweezers before the extruder got back to that position, but not always.

[img]https://i.imgur.com/tcqj8Nz.jpg\[/img\]

I had to pause printing once when it started banging against a lump and dislodged the fan shroud, I ground off the lumps and recommenced printing went Ok for about an hour then it happened again, this time the extruder hit with enough force to shift the carriage out of alignment and I had to abort the print.

[img]https://i.imgur.com/jMeThB0.jpg\[/img\]

[img]https://i.imgur.com/gaq2IEL.jpg\[/img\]

The photos show the Cura settings and the results of the printing, can anyone provide any advice as to the cause of this problem and how to go about curing it.

This is the beginning of the G code File.

[img]https://i.imgur.com/KMooJSM.jpg\[/img\]

Thanks for your help!

Max

  • created

    Jan '18

  • last reply

    Dec '18
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DazDavid
Jan '18

Hi Ausimax,

congratulations to your Anet A8 :slight_smile: Its a great printer if you take care of it.

I´m not an expert but I would check the Retract Settings as well as Extrusion Multiplier First.

For me it looks like a Overextrusion.

Try to lower the Extrusion Multiplier a little bit and check how your Retract Settings are set. Usually Stringing means your retract is to low.

It could be that you have set a low retract followed by an to high extrusion to compensate the retract.

Regards

David

Lea3DPrint
Jan '18

In addition, is your nozzle screwed in correctly? You can get this blob if it leaks and eventually deposits the leaking plastic on to the print

DazDavid
Jan '18

Very good point. Now since you wrote that I remember I had that one time in the past. The nozzle was a bit loose and the Filament started to come out on the Top side of the Heatblock and from time to time some Filament drops felt down.

You can also see that very good when you change the Color of your Filament and you find some Spots from the previous Color in your Printouts.

In that case I can only recommend you to replace the nozzle + heatbreak + heatblock as it is pretty impossible to clean them from melted PLA.

10 months later
1 month later
steve3dprinters
Dec '18

Hi Ausi, Anet A8 is a great 3D printer and seldom offers troubles unless the print settings are not too appropriate.

And in your case, I bet the 3d printer’s nozzle is not at an appropriate position. In other words, the distance between the nozzle and the printed object might be too less, so as to lead to blobbing. And when the distance turns to be more than the required number, the printed object can cause stringing.

You can find about the appropriate distance from the user manual of your 3D printer.