some thoughts and a problem  

RE: some thoughts and a problem

Here's what the little square should look like:

Here's some copypasta...

• A dirty PEI print surface. Even if you don't think this is the cause, it's always a good idea to make sure your PEI surface is clean before trying any other fixes. Take it to the kitchen sink and give it a good dunk with Dawn (original formula, no vinegar or hand softener variants) dishwashing soap or your local equivalent (e.g. Fairy in UK). Use a clean paper towel to clean it off, and another to dry it. Avoid using any sponge or cloth that has been in contact with grease. Above all else, avoid touching the PEI print surface. Once it's good and clean, you should be able to use 91%+ isopropyl alcohol between prints, 100% acetone when that fails, and another dunk when acetone fails. Worst-case, use a 3M 7445 ScotchBrite pad or equivalent to give it a very light buff, but only infrequently.
• If you have not already done so, try using Jeff Jordan's "Life Adjust" procedure for calibrating your Live-Z setting. It is much easier to use and understand than the on-board routine. 

RE: some thoughts and a problem

thank you for the fast answer.

but it seams like the first layer is connecting with the print surface for what i can understand i got a problem whit blobs and on layer 2 the nosle hits the blob and loosens of the first layer some.

so what can be happening when the printer makes these blobs ? the only seams to start appearing when the nosle makes short movments, the other part of the print seams OK

RE: some thoughts and a problem

The blobs can form if the nozzle is scraping the 1st layer due to being too close on your Live-Z. Bits fall of and accumulate on the next layer. Parts of the 1st layer appear to have been pulled up by your nozzle in the 2nd pic. That's why I emphasize the importance of getting adhesion and Live-Z right. 

RE: some thoughts and a problem

Here is as see through i think its a quite even until the travel distance get shorter

(by the way its PLA and first layer is set to -0,75 first test string is about 1,4mm wide and 0,5 high )

RE: some thoughts and a problem

What happened when you tried Jeff Jordan's "Life Adjust" Live-Z calibration? Have you tried it yet?

RE: some thoughts and a problem

Just did that, raised the z to -0.5 the first 1/3 of the square and got some blobs -0,6 still some blobs (and the strings was not attached to another) got down to-0,75 and the string were glued back together

Still blobs

RE: some thoughts and a problem

If you are going from -0.5 to -0.7, you are lowering the nozzle further. I would raise (go less negative) by a significant amount until the filament is not sticking, then come down in increments of 0.2mm until it starts sticking. At that point, you should see gaps between the lines, but they'll adhere. Keep lowering until the gaps close up and you're good.

RE: some thoughts and a problem

i tried, still getting blobs and i have to go below -0.6 for the gaps to disappear but it is still blobbing at - 0.5

RE: some thoughts and a problem

Any chance you have filament built up on your heater block or nozzle that is coming loose and falling into your print? Are you using a silicone sock? Are there odd bits of filament on your bed? Have you changed nozzles or other extruder work? 

Take at look at the hotend to see if you have filament oozing out in odd places. If Live-Z is correct, you may have bits of filament getting into your print for some reason. 

RE: some thoughts and a problem

I changed the nozzle to 0,6 and increased bed and nozzle temperature by 10C and it seams to have fix it