Solved Z layers not stacking nicely, vibrations in the print along X and Y

Title sort of says it all.

Running an R1 Plus, printer is stock.

The Z layers don't stack up printing a cylinder very nice, and every 6mm or so vertically seems to almost have a stripe pattern in the layer stacking.

I tried to get a closeup photo, but I could not get anything that looks good. I attached the best pic I could get.

I also have issues where there are "vibrations" in the print after it prints a feature that requires significant change of direction in the perimeter.

I've tried printing slower to no significant avail, although printing stupid slow helped with the x & y vibrations.

I know the print is usable, but I would like to clean it up.

Thoughts on any issues I may be having, or possible mods that may help? Thanks in advance!

 

I'll go through calibration.

The belts seem tight (but not too tight, is there an actual spec for torque?), of course there is slop in the linear bearings, are they typically tight?

 

Ahh, the bearings are not noisy, and I keep them lubed.

How much deviation is normal for this machine?

Also, I see motor vibration dampeners for the steppers. Are those any good for this issue? I'm not worried about noise, but print quality.

 

Could you explain what a "sanity check" is?

Thanks

 

Depending on how comfortable you are with digging into firmware, it may be worth adjusting the acceleration/jerk values in the firmware so that it runs more smoothly (a popular no-purchase-necessary modification).

I don't recall off the top of my head what the current popular acceleration/jerk values are though.

 

Running simplify 3d for a slicer. Obviously still have matter control as well.

 

So does the M204 command work for these units?

 

Any Gcode or Mcode that is part of Marlin will generally work with these machines unless it is for a feature they don't have.

 

So I just finished a model, printed it in PETG. It looks MUCH better, at least until I get 100mm from the build plate at which point there gets to be a lot more features, instead of a plain arc.

Just in case that brings any ideas.

 

So for putting in the M204 command into the scripts on S3D, where exactly would that go, and what value should I start with?

 

Oh, and everything seems tight on the machine, except I'm not a huge fan with how much slop is in the LM8UU bearings. How typical is that to have some slop between the rods and bearings?

 

You want to look in the Scripts tab in the Advanced process settings.

EDIT: here is a screenshot from the S3D forums.



And here is the actual forum posting about it.

https://forum.simplify3d.com/viewtopic.php?f=8&t=1959

Take notes, there are a lot of really useful custom settings you can put in your start/end Gcode.

 

So as far as using the M204 command to slow down acceleration, what value should I try, or what is the stock value?