Unanswered prints thin/stringy and layers separate easily (weak prints)

Could you share some photos of the print issue ?

 

https://www.simplify3d.com/support/print-quality-troubleshooting/

 

This is without seeing pictures, but first make sure your extruder is calibrated properly otherwise all the next few suggestions won't be worth much.

1. Layer separation - Extruding too cold, under-extrusion
2. Blobs and zits - Could be partly due to poor intra-layer bonding, see above suggestion
3. Weak infill - see first suggestion
4. Vibrations and ringing - Use, by Robo, of threaded rods rather than proper lead screws, Marlin acceleration figures are too high

Fix all the rest first then we can address anything that is left.

 

Z offset would be my suspect there.

Clogging? It is either that or USB communications failure or the slicer losing its mind.
If it is not moving at all then USB communications breakdown...

 

Hard to help when the descriptions are more ambiguous and not as exact as they could be. What do you mean by "worse" and "now cuts out randomly", please be specific. It's not like the Robo is a perfect printer, in fact it has many flaws and a lot of stuff I have spoken out in posts here. But I am going to tell you that very few 3D printers are 100% reliable and/or 100% accurate and precise. You can move to another if you like, but there is zero guarantee it will be without it's own set of issues.

Let's just use extrusion as one issue, in general:

• Not all filaments are exactly 1.75 mm
• Not all filaments expand and contract at the same rate, sometimes the exact filament will expand and contract at different rates
• Besides assuring the length extruded is correct, which extruder calibration illustrates, you must also know the volume of filament extruded. The volume is generally adjusted by extrusion multiplier.
• as a result of having to overlap extrusions in order to assist adhesion the first layer may need a small adjustment to the extrusion multiplier to fill in any gaps. Most slicers can accommodate this variable.

If anyone is looking for Plug and Play and is looking for that promise in the current state of 3D printers, I am truly sorry you believed the hype. It is like any other precision machine tool, it requires care, maintenance, calibration and adjustments to work toward its potential.

 

What slicer software do you use and what is the layer height?
Also do you have an Beta , R1 with 5/16" threaded rods, R1 with 8 mm threaded rods or an R1+PLUS?

 

Looks like a partial jam if all of the pictures are current tries. Like @WheresWaldo asked, model of printer? Slicer? Etc. are you running a filament oiler. We need much more information to help. With the right maintenance and information the robo can be a great machine

 

Assuming the calibration is accurate (doing it multiple times and using the average) I'm sticking with it looks likes filament jam or partial clog. To check mine I waste some time but I'm a visual guy, I heat remove the hot end from the holder,then heat and remove the nozzle. I then let it cool and look thought it to verify there are no jams or partial clogs. Then I run some filament through it with the nozzle off, if all appears good and the nozzle is clear I put the nozzle back on heat and run filament dipped in canola oil to reseason. If there is a jam double check your temperature settings. Make sure your not to hot or cold.

What slicer are you using ? When I switched from matter control (I printed at 210) I had to lower my temp ( now
Rent between 195-200)because of jam and clog issues as the filament would be to hot and leak into my cold end causing jams.

Please remember everyone's settings will be different.

 

Truer words were never typed.