I switched out my extruder to a bowden setup on my a8. It seems like it's under extruding. I think the nozzle may be under the marked .4.
Did you change the extruder motor to a different one? The Esteps might be different if the gearing is not the same. It's worth checking.
It's all the same as it was, good thought though. It is just running through the tube now. I'm beginning to think it was a bad idea. It is much more finicky now.
Yeah, I am so over this bowden setup. I never knew why everyone mentioned jams and clogs. I do now.
Jams or clogs are usually due to not cutting the ptfe tubing square AND/or seating it against the nozzle...
the video below illustrates it cleanly...
Direct drive is great if the x carriage can handle the weight...
[video=youtube;-vH_spN5wyw]https://www.youtube.com/watch?v=-vH_spN5wyw[/video]
Nice Eric!
Petg is like abs without all the heat or smell or enclosing
And without the ability to work it after the fact with acetone. Also doesn't stick to glass + hairspray as well as ABS. Sticks great to lightly scuffed PEI sheets though (If you switch back to ABS, drop the bed heat A LOT or it'll become one with the PEI)
Someone mentioned changing nozzles every 2-3 spools... I have a stack of 9 empties I know of. got a pack of new nozzles: wow yea that makes a difference.
Then found the bearings for the hobbled shaft/gear in the extruder are shot (actually, they're beyond shot: they're disintegrating) so now those are in the mail.
Odd, I've heard if the bed is too close that petg will still too well. To the point where it will bust shards/layers of glass off the build plate and stick to the bottom of the petg.
To date, i've only printed it once... using pla settings because i didnt read the label to see it was petg. ran great for the first 10 layers or so and then began underextruding horribly and made a spaghetti monster. Having had that experience, I am more likely to try it again with proper settings this time!
I'm glad to see some activity in this thread.
Just finished printing some light switch locks https://www.thingiverse.com/thing:69806 as I have some switches I like to keep on all the time due to some home automation I have set up.