No plane sides on printed objects

K8200 3D Printer K8200 - Issues while printing
1

We built this printer in school and the prints have just been better and better but we have never got rid of this. The object never get a straight side as you can see in the picture below. Do you guys know why or have something we can test to get rid of it?

ztut1s.jpg2048×1536

2

This is called Z-Wobble.
You can solve this by buying the z-axis upgrade kit

Best Regards,
VEL337

3

Also looks like heavy overextrusion.

What layer height did you use?

4

I actually don’t remember. This is a pretty old print but that melting look is now gone.

5

Can you post a recent picture of a print then?

6

Alright, the black mobile stand is the newest and the best print we have made so far.

30wo043.jpg2048×1536

555vtl.jpg2048×1536

7

Okay, the newer pictures clearly show heavy z axis wobble.

Maybe you want to look for this to fix it :

vellemanprojects.eu/products/view/?id=420348

8

If you don’t want to buy the upgrade kit: Using a flex coupler should eliminate most of the wobble.

regards

walo

9

[quote=“walo”]If you don’t want to buy the upgrade kit: Using a flex coupler should eliminate most of the wobble.

regards

walo[/quote]

Can you link to a flex coupler that would work?

10

Should be for 5mm / 8mm shafts like this one:
http://www.ebay.de/itm/Adafruit-Aluminum-Flex-Shaft-Coupler-5mm-to-8mm-/151438353602?pt=UK_Computing_Other_Computing_Networking&hash=item23426de4c2

regards

walo