Nozzle keeps clogging and I cant figure out why.  

RE: Nozzle keeps clogging and I cant figure out why.

@tim-2

You prefer titanium?

RE: Nozzle keeps clogging and I cant figure out why.

@megardstudio

ps: Retraction and various other settings never worked to resolve the issue for me, nor did changing retraction settings work reliably for others that have had the issue. Recently someone mentioned printing at 125% speed did work. Changing the heat break is simple, easy, and will 100% eliminate the chance the heat break is the issue. The only caveat is Prusa swears the step is needed for the MMU: however, several people who have had this issue own MMU's and found zero problems after swapping in the stock E3D heat break. As in all things, ymmv.

RE: Nozzle keeps clogging and I cant figure out why.

I have both the titanium and standard heatbreak. Which one do you guys suggest? 

RE: Nozzle keeps clogging and I cant figure out why.

@cwbullet

Titanium is a better thermal insulator - and reduces the heat load the heat sink needs to dump. Over all (therorectically) improves (lowers) temps at the PTFE and above (according to E3D - the folk who designed the hot end). Recommended for printing at higher temps for this reason.

https://e3d-online.com/products/v6-titanium-heat-break

RE: Nozzle keeps clogging and I cant figure out why.

Thanks.  I thought so.  I just want to clarify.  I have been using titanium more recently.   Not a dramatic difference, but it appears superior.  It works and does not require changes to the profile settings.  

RE: Nozzle keeps clogging and I cant figure out why.

@megardstudio

I have the titanium. It also requires no changes in any profiles; a direct form/fit replacement.

RE: Nozzle keeps clogging and I cant figure out why.

Changed it out but now I'm getting random blobs. It might be the material but I've had good luck with it in the past and it is new. It almost seems like the temp is off (too high). PLA 210c like always. All standard-setting except the 1st layer that I slow down a bit. 

RE: Nozzle keeps clogging and I cant figure out why.

@megardstudio

A pic of a random blob, please. And check for leaks coming from the nozzle threads and heat break threads above the heater block. 

RE: Nozzle keeps clogging and I cant figure out why.

Also, can you show an image of your hotend.  

RE: Nozzle keeps clogging and I cant figure out why.

@megardstudio

Any updates? Did you get this sorted out?

RE: Nozzle keeps clogging and I cant figure out why.

Yeah, I chucked it out the window. 

No, I just had to walk away from it for a day or so. I've been screwing with it all week and it's driving me nuts. 

I did look around the nozzle and heatpipe and they look fine. 

RE: Nozzle keeps clogging and I cant figure out why.

@megardstudio

3D printers can frustrating little bastards.  Walking away is the right move.  

RE: Nozzle keeps clogging and I cant figure out why.

@megardstudio

Check your fan is working properly and there is no dust blocking it. Looking at the photo the nozzle should be further "inside" the heat block and the heat break tight against it but the "narrow" piece of heat break shouldn't be inside the heat block, that *might* be contributing to the heat creep that is causing blockages.