Hey guys,
I need some urgent help.
I’m printing this model from an order on 3dhubs but I can’t seem to get a consistent surface finish.
I’m printing in PLA at 210°C.
I’m printing again now but reduced the temp to 200°C and the speed to 40mm/s.
What else do you think might help?
Bro every problem has solution itself so just… Be calm… And start again with another perspective u will succeed gbu… 
@Geetanshu_Production I know… 
But I just need to know what might be the cause so that it doesn’t happen again… 
I’ve reprinted it 5 times already with different settings every time.
@Max_Moors see bro i know nothing about it… But i can explain ur fault but first u have to tell me breif intro about it… Or else u just be calm… And just observe ur five attempts… U will automatically get ur ans… M damn sure about this… U will succed…
I use this page as a troubleshooting resource all the time, https://www.simplify3d.com/support/print-quality-troubleshooting/
Hope it helps get you sorted out.
@Geetanshu_Production whaaaa?!?
@Fen11 yeah I also checked that but it doesn’t have this problem… 
Was it printing in this orientation or has it been turned on its side? It looks like a z-banding problem to me.
@Fen11 it has been printing on it’s back:
https://plus.google.com/photos/118270370108535951469/albums/6394478392210653153/6394478389151368290
@Fen11 it’s weird because it isn’t something consistent. It is more where the holes/support start and end
1st off, I’d say that’s pretty acceptable for an order - sure not perfect, but pretty darn good.
2nd, you say you’ve printed 5 x. Show us all 5, side by side. If the ‘consistent’ finish you’re talking about is that banding, it would be helpful to see if the bands are at the same height, etc for all attempts. Look closely at the STL file, and at the tool path for the gcode - are the bands there? or only when printing? (that is: garbage in, garbage out - make sure it’s not the model or something weird confusing the slicer).
Print a simple cube, same height and compare surfaces. These will help focus the attention onto the model, slicer or printer.
@Alex_Wiebe they all have the issues at the same height. Where the holes are.
The STL and gcode are fine. I’ve taken a look and they seem OK.
The cube and other models come out perfect. It is really only this one that intrigues me…
I’ve printed another model besides that one. But it doesn’t show the defects due to it only being small cilinders.
Then based on what you’ve said, I’d say you have a physical problem with the printer.
Start by making sure there’s no backlash or slack on the X/Y axis. If the bands are only when a model has holes, it’s possible that the change in direction at a different spot on the model is highlighting some slop in your setup.
Temperature recomended for PLA is 195. If you print much more models at 210, your hottend will colapse and you will have to clean it.
The first line is at the exact height of the first hole (the one at the back)
https://plus.google.com/photos/118270370108535951469/albums/6394482751382256529/6394482751047714738
@Israel_Aliaga it’s just that the PEI sheet doesn’t let PLA stick to the bed if it is under 200
(Based on Personal experience)
The problem is the time spent per layer is inconsistent, leading to some layers being cooled/hotter than others.
Best method I know of is to increase cooling, or add more stuff to print at the same time so it spends more time per layer.
Based on that picture, my vote is backlash/slop in your X/Y axis. Start there.
@Stephanie_A well, increasing the cooling is impossible as it is already with the fan at 100% and this fan from the prusa i3 MK2 is extremely strong…
And also when I put the other model that comes with the order it doesn’t do anything different