Cool look that one! Expensive?
Not to be negative here, but given all the pics, it really seems toi be a hardware issue. On the other hand, it’s always safe to test leads before discarding them 
I’ll give a try when i can, i’m pretty sure it’s hardware because this software work verry well on another printer
not very expensive, you can look on bee website, he give more information
Fedus82
33
Hi! I agree with Dubbo_3d, and from the pictures it is z-wobble, i haven’t seen the picture of Your printer yesterday…remove z-tops contraints and, depending in your x-ends, apply antiwobble pieces like this http://www.thingiverse.com/thing:141479
Many thanks, it make sense, i’m at work now and i’ll do this this evening ! i’ll give news to you when i’ve done your tips !
Fedus82
35
i use the these and they works Great! Non perfectly straight threaded rods are free to wobble without transmit the motion to the x-assembly, the only concern i see is related to a special slicer function present in Slic3r called z-lift, as said it slightly lift the printhead when performing retraction, in case you want to use a similar function just add small rubber band between antiwobblers and x-ends!
Munfred
36
Simplify is definitely the best slicer currently available, because of custom supports, fast processing, but especially the excellent toolpath generation. I’ve done comparison prints with Simplify, Slic3r, Cura and Matter control, and Simplify beats them all. Makerbot slicer, when you don’t need supports, is on par with simplify, but with far less options and of course, only for Makerbots and clones.
hi
Like sayed here, you should try something like this :
http://www.thingiverse.com/thing:141479
don’t sure to understand your last tought, you mean it’s necessary to have this after this modification ?
Because i already retract the filament when it print
here some news, it’s more complicated than i planed because i don’t have much space under the extruder axis for anti-wobble system, so i’ve reprinted some parts ( especially top one, because it was broke, i’ve done a test without and the wobble was much important ).
Fedus82
40
Sorry for my terrible english…i’ll try to explain it better:
you should be able to fix the z-wobble problem on your prints by removing z-tops constraints and installing antiwobblers.
Someone like/need a special function present in many slicing sw called z-lift(in slic3r and cura, don’t know Simplify3d) which perform a slight printhead lift during retraction/travel moves and then return to the previous print height to improve prints cleanlyness, in some cases when this function is enabled on machines equipped with the antiwobblers suggested, the overall quality/cleanliness could be worsen. if this will happen to fix this further issue it could be useful to apply “soft constraints” between antiwobblers and x-end made with soft rubber bands.
This is just in case,
Cheers!
Federico.
Fedus82
41
ok…i’ve checked well your printer building manual, and I think the fast way to fix is by installing new z-screw(s), but first contact the manufacturer and ask them some tips! Also you may try to remove the z-screws, place it on a flat surface and make it roll, observe while rolling, the screw should be always perfectly touching the surface, otherwise it is bend and should be replaced…
don’t have to be sorry for your english, mine are not better haha
Thank you, i’ve well understanding, but what i try to say its i have not much space between the end and the extruder axis, like you can see on the picture.
i’ll try something else, but at this point i’m not sure if i do to make a new structure for z axis myself or just add this anti wobble, but it seems not designed to be used for a long time
I think so, too.
Z axis screws should not be constrained at the end. I have a ReprapPro Huxley and actually the end are free:
https://reprappro.com/wp-content/uploads/2013/10/huxley_kit_big.png
Hey !
So today i’ve buy two new M5 screw bar, but i think i do to replace Achse Starre Kupplung too, because they don’t turn right, so i will do this, an when i’ve replaced it, it will be good
There you can see :
hi, yap i’ve already removed it, i’ve prined new one without constraint, to just be a simple cap, don’t touch the screwed bar
Hi
On my prusa black steel i use a long 2 cms m5 nut to reduce wobble and play. works like a charm …
Hallo i am not a Prusa user but it seems to me it could also have something to do with your extrusion. The lines in the smaller part are smaller than the other and don’t fill the whole form… Maybe you have some problems with the turning of your spoel or is your extruder motor wobbling.If you print at a lower speed without the spoel pulling on the filament. And if you push the filament helping the extruder do you get the same results?
Hi, you just need to switch bad couplings from Z motors to threaded rod with simple tubes. They work the best. It is definitely wobble, as you can see whole layers are shifted and I bet in 0.8mm pattern if you use 5mm threaded rod.
See my manual Prusa Knowledge Base
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