Random lines in print

[tythebuilder]

Hey everyone, lately I have been getting this weird random lines throughout my prints. I don't think it is z-wobble because i have the floating z-axis mod on my prusa i3. my belts are tight and my x-axis is solid with no play. However, my glass build platform is too small for my heated bed so i can only use two clips to hold it down, could this cause such lines? I'm at a lose atm so any help would be great, thanks.

p.s both of these prints are rather large and printed at 0.1 layer heightIMG_8320.JPGIMG_8317.jpg

[Jenniferfhughes]

The random lines are the width of whatever feature they jet off from. For example if my county boundary is 5 pt then a 5pt random line will jet off from one of the vertices or serveral will from various locations. They only appear during physcially printing.

[Jenniferfhughes]

The random lines are the width of whatever feature they jet off from. For example if my county boundary is 5 pt then a 5pt random line will jet off from one of the vertices or serveral will from various locations. They only appear during physcially printing.

[curious aardvark]

did it do it before you modded the z-axis ?

[tythebuilder]

Thanks for the reply's, after hours of printing a research i fixed 90% of the problem. I seems the problem was with my retraction, I was retracting 3mm at 1800mm/s which did not give the extruder enough time to relieve the pressure in the nozzle...so i think. I change my retraction to 4mm and 1000mm/s and got prints that are as good as im going to get from my inexpensive i3. Here are a few pictures of the problem before and after i changed retraction settings. They are all under the same lighting.

Before
IMG_8536.jpgIMG_8525.jpg


After

IMG_8543.jpgIMG_8573.jpgIMG_8509.jpg

[wirlybird]

So you increased the distance and slowed it down? Interesting. Looks promising.
How does a cube come out that is solid infill?