Olsson Block Help

[BrayChristopher 36]

We have an UM2. I finally upgraded the hot block to an Olsson hot block and Micro Swiss Wear Resistant Nozzle.

 

 

Of course, now the UM2 and I look like we both forgot how to print things.

 

I had to raise the temp to print PLA. Is this normal?

 

PETG is making me lose my mind.

 

I used to get good prints like this.

 

 

Now it looks like this

 

 

It is hard to see, but the hairs and bumpy surface happen where the "base" of the part stops and the "walls" start.

 

 

It is easier to see this on this larger part.

 

 

 

Here is a section view.

 

 

I am using Simplify 3D and always have. Same materials. 

 

I didn't change any of the settings during this print.

 

This artifact does not align with the layer that the fans start (50%).

 

 

Any ideas??? Please and thanks.

 

 

Also, I was getting temp errors so I wrapped up the hot block in ceramic wool. Is that normal?

 

 

 

 

Is there a magic nozzle that doesn't stick to PETG?

 

Gross.

 

 

 

 

 

 

Edited July 13, 2018 by BrayChristopher

[cryptie 0]

What kind of nozzles are you using?

 

I had to up the tempurature a bit on my 3dsolenx block to acheive the same quality as I was getting on my stock block.

 

Also, have you tightened the nozzle to spec while warm, then done a bed leveling?

[BrayChristopher 36]

I am using the  Micro Swiss Wear Resistant Nozzle, which is a brass nozzle with nickel composite coating.

 

I did re-level the bed.

 

I did not tighten the nozzle while it was hot.

 

Bed adhesion doesn't seem to be the problem. 

 

And I am not getting any leakage between the nozzle and the Olsson block.

 

 

[cryptie 0]

Sorry, I cannot Help more, I only gave from my limited experience. My only suggestion is that now you need to figure out the temps again. try a heat tower, see if that helps selecting the best temp?

[BrayChristopher 36]

Does anybody print PETG with the Ollson block?

 

What settings do you use.

 

Help please.

 

[BrayChristopher 36]

In case anyone was wondering, it seems that canola oil has solved my problems... for now.