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infill and walls not connecting

Posted: Sun May 17, 2020 7:47 pm
by OC33
Hi all, have a Rostock Max V2 with ballcup arm and carriage upgrade. Have been dealing with a printing issue that causes the wall and infill not to connect.Have already calibrated level and H. radius as well as stiffening of the hot end/platform. Have also tried changing the arm length in the EEPROM to both 90.8 and 91.06 but still dont have a fix, any help is appreciated.

thank for your time.

below is a link to picture of the rough print quality and separation of infill and walls.

https://drive.google.com/open?id=1QIpm9R3u-M3hiCiMG1-9_uJg2EIAa9Iy

Re: infill and walls not connecting

Posted: Mon May 18, 2020 8:21 am
by geneb
What slicer are you using?

g.

Re: infill and walls not connecting

Posted: Tue May 19, 2020 1:48 am
by OC33
ah, yes, forgot to mention. I have used Cura, the newest updated version as well as repetier host. both had the same issue. in the pictures, the one on the left is Cura, the right is Repetier

Re: infill and walls not connecting

Posted: Tue May 19, 2020 9:12 am
by geneb
It's not an arm length issue - that would result in an overall dimension problem.

The first thing I notice is that you may be printing too hot - knock it back by 5C or so and see if you get a better result. It won't fix the perimeter/infill issue, but you'll end up with a less "melted" looking part.

Check the fit of the arms on the balls - the arms should fall with gravity and do so quickly. You might have one or more that are binding. Make sure you check the balls/arm fit on both the carriage and the effector. Letting the arm go from horizontal should result it acting like a pendulum.

Do the carriages wobble at all?

I would suggest a 25mm x 5mm cube for doing testing - it's a fast print.

g.