Unresolved Holes in my print

I think those J-head have a limited lifespan. Seems like it's a nozzle issue.

I'd suggest cleaning it with a brass bristle brush or a guitar string.

It's not oozing is it? Might be worth taking apart as well.

I'm not sure really. An oiler usually fixes it

 

Thanks Mark, will keep that in mind, I do suppose it will keep your filament clean as well.

 

I didn't think it would work on abs, just cooking oil then? or olive?

 

canola oil is generally the best option. Vegatable, peanut, or avacado are also good.

Works fine with all materials. Less important with ABS because it's a petroleum based filament so it doesn't degrade quite as quickly as PLA

 

I've been using an oiler. That's when the issue appeared.
I also changed my thermistor recently and cleaned the hot end as well.

 

Might be time for an upgrade. Could be a piece of gunk jamming your nozzle.

If an oiler doesn't fix it it's most likely something physical

 

Support told me it isn't an easy change to the new all metal. Is the ED3 head an easier upgrade?

 

What the hell? Who told you that? Brian?

It's an easy upgrade. Especially the e3d v6

 

I have the new R1 that comes with the all metal, but from what I was reading about e3dv6, it's a pretty easy install.

 

This us what I was dredging, here is the reply

Hi Peter,

I just want to make sure you know that to install the all metal hotend you are going to have to rewire the entire hotend wires and add wires for the fan that is required for the all metal style hotend. I don’t have instructions for you on how to install this but it’s basically like the E3D installation instructions which you can find on our forums. Please confirm with me that you would like to do this installation

So which direction would be best, all metal or the ED3?

 

So I took your advise guys and lowered the temp. I had to readjust my height also. I think the filament was getting stuck from too much back pressure and resulting in a thick filament piece that couldn't get through afterwards.
Here is.ma sample of the issue

I managed to fix the height but still could be better as this has shot shows some issues

But my print is currently continuing for the first time a while.
PLA 195 seems to be the sweet spot..


Thanks again for the tips. I will consider upgrading the hot end one day.
I've been printing everyday for 10 months and Mike's right, the head must be wearing out by now. I've already replaced the bed heat pad and the thermistor and a threaded z axis rod. And she"s still going strong!

I love my Robo3D printer

 

damn that is slimy looking.lol thats cool.

 

Here is the finished print. Notice the extra hanging threads. Is this a slicing issue? Seem to happen only on the fingers and is pointing up


Found one hole

 

http://www.thingiverse.com/thing:66175 this is a good test to help figure out stringing issues

 

This is a old post but i intend on updating it with other methods

http://forums.robo3dprinter.com/index.php?threads/fixing-stringing-for-better-prints.1411/