Greetings, I've built a few printers now but have never seen this error or even know what to call it. I googled, yahoo'd, and bing'd my little heart out to no avail. [attachment 24758 1.jpg][attachment 24759 2.jpg] When i print my outer walls are getting this fairly defined striping pattern to them. The pattern is very regular which led me to believe my Z-axis screws or ways had something to do with it, I took it all apart ran a die over my lead screws inspected my bearings and rods and found nothing out of sorts. put everything back together and ran a small print with the same issue. I've also tried slowing the print and double checked my extruder steps. Has anyone run in to this in their builds and fixed it? Does anyone have any other ideas? Thanks in advance https://reprap.org/forum/read.php?262,294577,294577#msg-294577 Sun, 07 Jun 2026 00:10:54 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?262,294577,303151#msg-303151 https://reprap.org/forum/read.php?262,294577,303151#msg-303151
As for the top z axis holders my machine is setup for m8 or 5/16th drive rods and probably wont work if your using m5 rods.

What i dont like about the anti wobble device your using is that it only pushes the axis up it wont draw the z-axis down and then your relying on gravity.

you can find my design files here]]> jmarasch Printing Wed, 29 Jan 2014 22:18:59 -0500 https://reprap.org/forum/read.php?262,294577,302733#msg-302733 https://reprap.org/forum/read.php?262,294577,302733#msg-302733 Can you post link to the objects you printed for the top z axis holder ? :) i got a little z wobble too, i found something that helped me alot, but still having some left, maybe those will help.
Heres what helped me: [www.thingiverse.com]]]> TRoager Printing Wed, 29 Jan 2014 03:18:41 -0500 https://reprap.org/forum/read.php?262,294577,302702#msg-302702 https://reprap.org/forum/read.php?262,294577,302702#msg-302702 Another thing... check your pulleys and belts, do they match? It happened to me once that i had 2.5 belts and 2.0 pulleys.]]> svalsorim Printing Wed, 29 Jan 2014 00:33:19 -0500 https://reprap.org/forum/read.php?262,294577,300480#msg-300480 https://reprap.org/forum/read.php?262,294577,300480#msg-300480 jmarasch Printing Fri, 24 Jan 2014 13:40:55 -0500 https://reprap.org/forum/read.php?262,294577,300479#msg-300479 https://reprap.org/forum/read.php?262,294577,300479#msg-300479
[attachment 25590 WP_20140123_18_53_17_Pro.jpg][attachment 25591 WP_20140123_18_53_31_Pro.jpg]]]> jmarasch Printing Fri, 24 Jan 2014 13:36:48 -0500 https://reprap.org/forum/read.php?262,294577,294684#msg-294684 https://reprap.org/forum/read.php?262,294577,294684#msg-294684
The wobble comes from having the screws constrained rigidly enough to influence the carriage despite the smooth rods (or whatever your ways are).

The full step height issue comes from the repeatability of fractional steps being different from that of full steps. If your layer heights always stop at the same fractional step position (whole step layers), then the position error will be consistent. If not, then the error will increase for some layers and decrease for others, leading to a cycling under/over extrusion condition. The banding looks like Z wobble, but doesn't follow a helical pattern around the part.]]> Dale Dunn Printing Tue, 14 Jan 2014 14:15:43 -0500 https://reprap.org/forum/read.php?262,294577,294643#msg-294643 https://reprap.org/forum/read.php?262,294577,294643#msg-294643
It's a difficult thing to get rid of entirely, but there are things you can do to mitigate this. You should refer to this thread for more information]]> jbernardis Printing Tue, 14 Jan 2014 13:11:57 -0500 https://reprap.org/forum/read.php?262,294577,294577#msg-294577 https://reprap.org/forum/read.php?262,294577,294577#msg-294577
I've built a few printers now but have never seen this error or even know what to call it. I googled, yahoo'd, and bing'd my little heart out to no avail.

[attachment 24758 1.jpg][attachment 24759 2.jpg]

When i print my outer walls are getting this fairly defined striping pattern to them.
The pattern is very regular which led me to believe my Z-axis screws or ways had something to do with it, I took it all apart ran a die over my lead screws inspected my bearings and rods and found nothing out of sorts. put everything back together and ran a small print with the same issue. I've also tried slowing the print and double checked my extruder steps.

Has anyone run in to this in their builds and fixed it? Does anyone have any other ideas?

Thanks in advance]]> jmarasch Printing Tue, 14 Jan 2014 11:00:34 -0500