''Ribbed'' Perimeters

[JackFoz]

Hello!
I have recently bought S3D and have been playing around with the settings trying to get perimeters to print smoothly. I've had some success by changing the extrusion multiplier and I will keep decreasing it until it starts to get worse instead of better. Also at the corners of my test print there are ''blobs''; how could I fix this?

The overall finish on the walls of the test print isn’t great and I was wondering is any of you guys can point me in the right direction to make them smoother and to get rid of the blobs.

I know that my Printer isn’t at fault because it prints it perfectly when sliced with Cura and Slic3r.

Test 1,2 and 3 from left to right and Cura to far right.

There are Blobs on the corners.

[jimc]

the blob is usually the start of a new layer. its what oozes out during the rapid movement. this is controlled by coasting, wipe and restart distance. you can start by maybe adding 1-2mm of coasting, turn the wipe feature on at the default 5mm. at that point do a test print. if its still a problem add a little bit of negative restart distance. start with -.10mm. keep this and coasting as low as possible to get the results you need. i would normally say the ringing you see is from high acceleration settings in your firmware or a hardware issue but with it being smooth in cura i doubt that is the issue unless in your cura or s3d starting gcode you have an mcode setting the acceleration parameters differently. might be worth looking into.

[JackFoz]

Okay, thanks.

I'll give it a try. Do you think it would be worth asking support for the settings they use for the SeeMeCNC Orion Delta? I've recently watched a video from S3D and it seems that they use one. They might have some good processes.

[jimc]

Possibly. Ifnits in the stock profile list though then that would be what they had worked out for that machine.

[josecerdeira]

The ribbed efect can be related with infill and the overlap over the inner side walls.
Infill smashes a small portion of the wall and depending on the amount can create that look.
Using smaller overlap or even random infill start point may help.

Jose

[Bobo]

Hi Jack. Did you ever resolve the corner ringing / ribbing with Simplify3d? I am getting the same ribbs and blobs on my test cubes. Horrible result compared to Makerware
I have slowed down acceleration, printing 30 mm/sec on first layer. . 48 automatic width. 210 Celsius / 50 Celsius extruder and bed and .93 multiplier
Thanks
Bob