Defects in printing round homogeneous part
Hi guys, so I have this problem on almost all the parts no matter of what type of fylaments, it seems that when it close the perimeter it those a little movement towards outside because on the inside the perimeter has a groove on the outside a wave.
Can be a matter of movements speed or acceleration?
Thank for help
Best Answer by Neophyl:
The line of artefacts running upwards is your seam. Its where a print layer starts and ends. The interior shows it quite clearly. You cant ever completely get rid of the seam. You can move it around using settings, normally it gets hidden in corners but on circular objects there are no corners so there isnt too much you can do. Random places them more around but having them in a line makes them easier to post process (ie sand away). It takes quite a bit of filament tweaking to minimise seams and thats a whole subject on its own that someone else will have to answer (or a google search).
The external picture shows more roughness at the top and that is probably caused by too much speed/too little cooling and those smaller cross sections. You can adjust the slowdown settings under the Filament profiles to help with that. If you attach your zipped project file we can look and possibly help with the settings for that.
Theres also more general surface unevenness than I would expect and that is probably where the suggestion for checking belt tension comes in. Also if the filament variance is great (ie low spec filament) then it can cause some of that and also not having the filament tuned for its actual diameter can exaggerate the effect too.
You need to etune your filaments and probably play with various extruder settings, like the wipe. Slowing down speeds also never hurts.
RE: Defects in printing round homogeneous part
RE: Defects in printing round homogeneous part
The surface texture all around looks much more irregular than it ought to be. I would expect each layer to be almost the same as the one below. I suggest checking for mechanical problems like loose belts or screws, or a dirty extruder gear.
RE: Defects in printing round homogeneous part
Thank you were right my belt in particular the extruder was completely loose. However i can't think is the resolution of my problem, i will print something else and reports
RE: Defects in printing round homogeneous part
The line of artefacts running upwards is your seam. Its where a print layer starts and ends. The interior shows it quite clearly. You cant ever completely get rid of the seam. You can move it around using settings, normally it gets hidden in corners but on circular objects there are no corners so there isnt too much you can do. Random places them more around but having them in a line makes them easier to post process (ie sand away). It takes quite a bit of filament tweaking to minimise seams and thats a whole subject on its own that someone else will have to answer (or a google search).
The external picture shows more roughness at the top and that is probably caused by too much speed/too little cooling and those smaller cross sections. You can adjust the slowdown settings under the Filament profiles to help with that. If you attach your zipped project file we can look and possibly help with the settings for that.
Theres also more general surface unevenness than I would expect and that is probably where the suggestion for checking belt tension comes in. Also if the filament variance is great (ie low spec filament) then it can cause some of that and also not having the filament tuned for its actual diameter can exaggerate the effect too.
You need to etune your filaments and probably play with various extruder settings, like the wipe. Slowing down speeds also never hurts.