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Jul 2017

hello everyone, a 3d noob here.

i got a new anet a8 and trying to print i got a very bad result.

i used cura with 0.1 mm layer height. and reprap as gcode flavor. everything else i left as default.

you can see in the image the results are very bad, but only on the Z axis.

the x and y axis are pretty good.

  • created

    Jul '17
  • last reply

    Jul '17
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Hi, Maybe you have some wobble at z axis. Try to stabilize the z steppers by printing some guides for the metal bars (wich turns when stepping).

the image is not clear enough.

what material do you use?

Hello there, my first print with the Anet A8 was just perfect. For your problem, I think we will need some more details. What material are you using? The last time I had such a problem was the filament diameter not correctly setup in Cura.

Hi,

This could be because of several reasons. I would do the following checklist:

Check that the Z rods are fixed in the holes in the top of the Anet, but should not lie on the stepper driver axis. The couplers of the Z rod should flex a bit if you press the on the stepper motors.

Check all belts if they are really tight. They must be REALLY thight so there is no play.

Check your temperatures. I print PLA with 195-200 degree and PETG with 220-230 degree (depending on brand and color).

Check print speed. Start a little slower, you can always increase the speed in later prints. Start with 20mm/s.

And also, here is a very helpful troubleshooting guide for all mistakes everybody will do at some day ;)…

https://all3dp.com/1/common-3d-printing-problems-troubleshooting-3d-printer-issues/ 248

I hope this will improve your prints.

thank you for the reply

i left the default 60/120 speed.

what speed should i try?

thank you i will try these and report back.

i also had a problem that the extruder would stop heating mid print.

but i fixed that by crimping the coupling realy hard.

i think that was also part of the problem.

Unfortunately the stock Anet needs several improvements. Hint: also check the heatbed connector, this will also break at some time.

About your speed question: Start printing with 20mm/s for perimeter, walls and infill. The stock Anet is defintely NOT an high speed printer. 20mm/s is really slow, but this way you can prove that speed is not the problem and eliminate all other problems. After that you can increase speed by 5mm/s for infill for example and experiment with different speeds. I added a bowden system to my Anet to be able to print reliable (!) at higher speeds.

I only had to reduce the first layer speed. Everything else at 60mm/s is very good on Stock Anet. It seems to depend many non-understandable factors! I need to reduce the speed if I want really really good and precise prints.

+1 to the link, I had to use that when I first got my A8. The coupler’s came screwed already in the wrong spot so I had to unscrew and fix.

thank you everyone for the great help.

i got some improvement from your suggestions.

but i went through all the filament i had. and now im waiting for the filament i ordered from gearbest to arrive.

then i will do some more experiments and report back.

many thanks again. i see this forum has a very helpful community and im sure to stick around.

i got some abs today.

this one was printed on 230c, bed was 90c.

layer height was 0.2mm, 10% infill.

wall thickness 0.8

print speed 40, travel speed 60.

flow 90%, fan 50%

overall im happy with it considering it’s abs, but i did have some under extrusion on the walls

not sure why.