Is this all backlash or am I missing something else? (Page 1 of 2)

Did you experience anything like this before the upgrade?

Looks like you have a little chatter most likely caused by some over extrusion or from hitting the blobs.  The blobs look to be moisture in the filament.

"Liney things"?  Is that a technical term I am unaware of

No need to repeat the picture I know what you were referring to.
For the record I like the new term
I don't know what's causing it past it being a ripple effect from the nozzle bumping into the layer below.

Yep, slic3r shows flat as a tac and indeed it does not execute that way. I suppose fiddling with the belt tensions a bit would be a good plan. I'll be printing for about the next week non-stop so I'll be sure to show the results if they turn out better with the tension changes.

This is a crowd funding thing that I'm running: http://www.gofundme.com/bvi140 It's for pretty selfish reasons

Please do. I will do the same. Race to the solution!!!
Loser owes the winner a kangaroo

Maybe we could talk IronMan into trying line on his Ord.

I experience this same thing, I assume it is slop from talking to AZERATE and wardjr but I'm in the process of making my drive system more rigid/lash free so if I make any progress I'll let you guys know!!

well if i can quit breaking rumbas and thermistors but whether or not you have that much faith is up to you

edit: jeff receives 1k gold! super excite

At first it reminds me of harmonic "ringing" from high acceleration but ultimately I think this is mimicking that by first being slight overextrusion that gets echoed up the layers and from side to side as the extruder is bumping into the ridges pushed up when the plastic is being extruded right next to the last line with nowhere to go but out - then it gets squished up into a ridge by the extruder putting down the next line beside it.  This used to happen to me pretty often on my first few layers and then on flat tops.

Maybe consider either dropping your extrusion multiplier (or increasing filament diameter) OR maybe change the top solid infill in Slic3r advanced. I increased mine a little to 105% to fill some small gaps that I didn't want.  You may want to decrease yours and see what happens.

is the kangaroo still available?

You know you want fishline, it's the perfect compliment to that new AC bed heater

Its running at a very slow speed at the moment, about 80mm/s is the fastest speed, but I'll turn it down a bit to test it.
Acceleration is at 3000 in the EEPROM, jer X-Y is at 20 and Z is at 0.40. I've not fiddled with those settings before, any suggested numbers?

This is a crowd funding thing that I'm running: http://www.gofundme.com/bvi140 It's for pretty selfish reasons