Is this a retraction issue?
Hi, I am really loving my Prusa but am seeing some interesting artefacts - this is my second printer the first being a not so great Kickstarter that I gave up on so I am still relatively inexperienced. I am printing in PLA, 200um, standard settings in Slicer with z-HOP and using Prusa Grey PLA. I am seeing this issue on cylinder prints and originally thought it was movement between multiple items on the print bed but yesterday I saw it with a single item. There is a pattern to the marks and they are slightly indented - could it be due to retraction settings or even that I need to calibrate my extruder?
Re: Is this a retraction issue?
Where I have seen this is in relations to where the 'infill' connects to the walls of the cylinder. I have not tried it, but I would guess that adding another wall to your cylinder would fix this. In particular with the second picture. I can't say for sure what is causing the issues with the top pic.
Let me know what you find out.
Re: Is this a retraction issue?
I see more problems 🙁
Look at your sphere : the holes are sometimes not separated !
Thomas
Re: Is this a retraction issue?
by john.w12 » Tue Feb 28, 2017 11:25 pm
Where I have seen this is in relations to where the 'infill' connects to the walls of the cylinder. I have not tried it, but I would guess that adding another wall to your cylinder would fix this. In particular with the second picture. I can't say for sure what is causing the issues with the top pic.
I am not sure how you would add another cylinder as would the slicer just add infill?? or do you mean make the walls thicker?
by Knickohr » Wed Mar 01, 2017 8:31 am
I see more problems 🙁
Look at your sphere : the holes are sometimes not separated !
Thomas
I was surprised how well the holes (2.5mm diameter) came out as there was no support - it was printed with the large cylinder vertical - and I was expecting a spectacular failure! I am learning the limits of design but must admit I find it difficult to get the best orientation / support using Slicer - its not as intuitive as say meshmixer or maybe I have missed the best way to do this in Slicer...