anet a8 problems.

blinkybill · 2017-07-06T16:18:38.000Z

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.

20170706_190402.jpg349×621 25.7 KB

3DFlip · 2017-07-07T09:35:02.000Z

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).

gikam · 2017-07-07T09:36:11.000Z

the image is not clear enough.

what material do you use?

Mavyre · 2017-07-07T09:38:08.000Z

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.

Nekronomekron · 2017-07-07T09:42:12.000Z

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/

I hope this will improve your prints.

Nekronomekron · 2017-07-07T09:43:46.000Z

Here is another link for the correct Z coupler installation: https://3dprint.wiki/reprap/anet/a8/coupler

Mavyre · 2017-07-07T09:44:47.000Z

And turn down speed can help a lot too.

blinkybill · 2017-07-07T10:49:33.000Z

thank you for the reply

i left the default 60/120 speed.

what speed should i try?

blinkybill · 2017-07-07T10:52:19.000Z

PLA at 200 degree

blinkybill · 2017-07-07T10:55:14.000Z

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.

Nekronomekron · 2017-07-07T11:05:46.000Z

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.

gikam · 2017-07-07T11:25:05.000Z

try 40 mm/s

also check the diameter setting

Mavyre · 2017-07-07T12:52:50.000Z

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.