Blizz

omg... Of course it does! I've been digging around the forum, on YM in the comments and the generic information and couldn't recall where I saw it. The only place where I haven't looked was the place where I should've started... Sigh Thanks!

@Flashp0int awesome info. I've printed the feeder but haven't mounted it yet. I did like the point about the MK8 pulley so I went on ebay and ordered them. I'll wait for that to arrive to replace the feeder at once. I seem to recall there were some extra partse required for IRobertI's feeder (besides the original feeder, some screws i think?) but I can find the post again which mentions that. Anyone who can help me out?

I've printed it, does that count? Truth is I'm not yet at the point that I feel comfortable tearing my machine apart... Still trying to build up the courage

Definitely not sewing machine oil. I'll try with that and report back. Thanks for the tip.

Still trying to locate a page where I can see my starred designs in one go. Perhaps it's there but I've been unable to find it, both in the original site and the "next" one

I did, it made the situation even worse. The feeder lost grip at 1/3rd of the bowden length.

@scoobydoo apart from the fact that this is an english forum, you might just want to read the full 1.5 pages this topic is long and then you didn't have to pose the question...

Thanks for the tip, I'll be sure to try that! If the quick print will go, I hope there will be some included presets that can quickly be loaded and do something similar. As a newbie with no previous 3d printing experience I have to say that I am struggling with all of the configuration options. Even after more than a week of pretty much continuous printing. Some handholding for people like me might be "handy"

I am using Simplify3D besides Cura and they have imho an excellent toolpath view. I'm including a screenshot as a reference, perhaps there's some ideas there:

I would like Cura to update the expert settings (or at least ask me if I want to do that) whenever I make the switch from quick to full. I realise its hard to do in the other direction, given that you can customise so much, but thats not really needed. At least give us n00bs a bit of a headstart by reflecting the generic profiles in the advanced settings. I have no idea what I can modify quality wise and would love to tinker beyond the "fast", "normal" and "high quality" settings without having to figure them out from the ground up.

The problem is that its a very intricate design (one of Nervoussystem) which requires plenty of support. I haven't had the best experience with Cura in that department. I will try however Thanks for the reply. Filament wasn't ground at all however, it just had the regular "track marks" on it from being passed through the feeder. Which is why I figured it got retracted too much. Also there is flow without obstruction it seems, so I don't think it was that.

I have a spool of filaflex here but I can't even manage to get it up to the printhead without the feeder losing grip on it. I can get it about 2 3rds though the bowden tube before it stops. I've tried tightening the skrew on the feeder so it exerts more pressure but to no avail. So beware, it doesn't always work and at this point I'm not really comfortable yet in modifying my um2

Tried a print on high quality for the first time. Model sliced with Simplify3D on its standard PLA - High settings. Right of the bat I noticed that it doesn't seem to be moving enough material to print, but I figured it was because of the fine support it had to start with and bad adhesion. So I restarted with a raft and that seemed to do the trick. This morning - getting up with a lot of hope - I woke up finding the printer print invisible filament. This is what I saw: The filament under the bowden was chewed on, so it was in the tube at some point, but it seems that it was gradually retracted out of it, leaving the printer with nothing to print with. Any pointers of stuff I can try? I feel less green than a week ago but I'm still green nevertheless

This is my testprint (PLA @ 230ºC). It even went good at 10mm³/s up to the point when it had to start with the letters. Then it fell on its face pretty quickly

The filament was from Ultimaker itself and I bought it with the printer. It did break in the feeder but I didn't have the impression it was ground down. I've printed the piece with silver PLA and that did work, which suggests there is a quality issue with the transparant filament I received.

I've had my UM2 for about a week now and printed a lot of smaller objects (up to 4 hours print time) without (much) issues. However I'm trying to print a bigger object (24 hours) and it's happened twice already that when I get up, the printer head is just waving around in mid air because the filament broke. The coil is not stuck as far as I can see, if I pull on the wire it doesn't seem to require more force than before. It also doesn't seem to be a "grind" as the break was clean (the first time, I haven't had time to check this morning). But it did break exactly on the feeder sprocket twice. I am using the transparant PLA from Ultimaker for this print. Any ideas/pointers? Also, how can I get the filament out from the bower tube, last time I've just pushed other filament behind until the broken piece was gone but it took half an hour or so.