gamerfanatic

First off, I know the fan is hard wired to turn on the second the machine is on. However, is there some way to "fix" this? A controller or something to solve this? I though I read somewhere that when the extruder goes above 40C the fan will turn on, don't recall how to get this but... Yea. Thanks!

I hope you get a chance to read this but there is a really obvious issue to this that tends to be the culprit. Sometimes you can have "too good" of a level (of the bed). If your level is "too close" it is hard to push filament out of the nozzle. Especially on the initial layer. This was the issue that I was having and it turned out to be related to the bed leveling.

Awesome, I'm going to leave it as it is as the idea of having the filament squished into the plate sounds like a great idea, I think I got a great level. Thanks for your continued support! Voted your previous post as the best answer!

I wanted to update this thread as I seem to have figured out what has going on. Well I am pretty sure. The issue of the tick is only on the first layer. Reason, I think, is because the bed is "too" close to the nozzle which greatly reduces the flow of the filament and therefore causes the feeder to tick so it does not grind down the filament since it is harder to push through the nozzle.

Its not the retraction as that pulls the filament back, as it should. This is like a tick that seems to move maybe .25 of a millimeter so it doesn't do much in terms of "retraction" it just seems to like "reset". I read that this is due to too much pressure on the filament? Do you think Robert's feeder update will help the issue? Thanks!

You can always replace the belts if they are bad, but I don't think slipping would be caused by the belts being too tight. Especially after sitting for a few months.

I'm having a similar issue but on when the feeder "ticks back" a small amount every so often. Im starting to think there is an issue with the feeder mechanism so I should print Rob's feeder which is quite popular around here. Make sure to read everything before you take it apart, turns out you need to make a run to the hardware store for some stuff before its ready to be replaced... https://www.youmagine.com/designs/alternative-um2-feeder-version-two

I cant figure out why the feeder is doing this little thing where it takes back the filament and then continues on, happens every 15ish seconds or so. Really getting frustrated about it. Prints seem to be unaffected however. I understand that it is the extruder's attempt not to grind down the filament due to a lot of pressure. But how can I correct this pressure issue? I turned the screw on the top by the bowden tube all the way out so its not even inside the nut inside the feeder mechanism anymore and it still does it every so often.

I will print Robert's feeder. I actually like the design a lot more than the new one (more open).

That was crazy watching. Love it. 10mm^3/sec got a little hairy but as you can see it came out alright! What now? I should note, the back wheel that feeds the material into the tube seemed to "back click" every so often, much more at 8+ mm^3/sec. I was only printing at 4.0mm^3/sec on the print i posted above (with fill and bridging issues)

Can't seem to find the download link...

Print: http://www.thingiverse.com/thing:704409 Here's the print, I think it is definitely evident not only on the "bridging" portion but on the layer that all of it sits, on, holes ETC. (Note this was printed at 100mm/sec, but i think it is definitely doable) Settings: *Extruder temp: 215C* *Bed Temp: 50C* *Ultimaker Silver PLA* --------------------- Quality: Layer Height: 0.1mm Shell: 0.8mm Retraction: Enabled --------------------- Fill: Bottom/Top Thickness: 0.6mm Fill: 33% --------------------- Speed Print speed: 100mm/s --------------------- Support: None --------------------- Machine: Nozzle: 0.4mm --------------------- Quality Initial layer: 0.3mm Initial layer line width: 100% Cutoff object bottom: 0mm Dual extrusion overlap: 0.15mm --------------------- Speed: Travel speed: 150mm/s Bottom layer speed: 20mm/s Infill speed: 100mm/s Top/bottom speed: 0mm/s (100mm/s) Outer shell speed: 75mm/s Inner shell speed: 0mm/s (100mm/s) --------------------- Cool: Minimal layer time: 5 sec Fans: Enabled 100% The results: Sorry for the upside down image. Thanks Apple.

Yea, I think that is definitely the issue. How would we be able to fix this? Here's the latest print, I think it is definatel evident not only on the "bridging" portion but on the layer that all of it sits, on, holes ETC. (Note this was printed at 100mm/sec, but i think it is definitely doable) Sorry for the upside down image. Thanks Apple. Settings: *Extruder temp: 215C* *Bed Temp: 50C* *Ultimaker Silver PLA* --------------------- Quality: Layer Height: 0.1mm Shell: 0.8mm Retraction: Enabled --------------------- Fill: Bottom/Top Thickness: 0.6mm Fill: 33% --------------------- Speed Print speed: 100mm/s --------------------- Support: None --------------------- Machine: Nozzle: 0.4mm --------------------- Quality Initial layer: 0.3mm Initial layer line width: 100% Cutoff object bottom: 0mm Dual extrusion overlap: 0.15mm --------------------- Speed: Travel speed: 150mm/s Bottom layer speed: 20mm/s Infill speed: 100mm/s Top/bottom speed: 0mm/s (100mm/s) Outer shell speed: 75mm/s Inner shell speed: 0mm/s (100mm/s) --------------------- Cool: Minimal layer time: 5 sec Fans: Enabled 100%

It seems like anything too fast just has too little material, do I need to increase material flow? When bridging, the first "attempt" at bridging the material fails to extrude out of the nozzle until the second sweep around but by then the "infill bridge" has no where to be placed on.

It seems like anything too fast just has too little material, do I need to increase material flow?

Is there no way to correct this without adjusting speeds? I should be able to print at 80ish mm/s infill with this printer. Even on larger (square) prints it does the same type of things. I have reduced it to 60ish but it still will not finish it well. (ultimaker 2)

I am feeling a little more comfortable around this machine, which I am happy to say. However, I still have this issue on ANY infill I am doing. Either high percentage or low infill, it still is not making a complete infill structure like it should. Any ideas? All my infill looks like the print attatched in the OP. (I've increased temps to 217C with same results)

Thank you for the help all. Everything is working great now.

Ohh, I bet a raft will help. For now I am going to print the other parts alone individually. I will go back to those small planet gears after the other parts are finished. I'll report back in a little! Thanks for the rapid responses so far.

See my posts above about the retraction speculation, I watched it happen. More photos incoming on the 3rd failed attempt. It definitely has to do with this retraction of the filament out of the nozzle to place like little dots of filament on the bed as "gears".

It seems like it keeps getting stuck when it trys to print those little gears as it has so many "retraction" points to just put a blob of filament down for the teeth... how can I fix that? Here is the print http://www.thingiverse.com/thing:23030

Not too sure why the printer is doing this, it seems like the printer keeps printing parts that are raising off the bed, or like printing excessive material and it seems to slip up like in the picture below. Any ideas on what is going on?

+rep if I could! Thank you!

This is what I thought I would be able to do. Is there no other way to compensate for more flow? After exploring the settings the speed only seemed to be around 100ish mm/s so the printer should definitely be able to handle that, no?

Hey guys, this is my first issue with my new 3d printer! I love it anyway :Pbut wish to figure out what I need to adjust to get it working even better! The infill does not seem to be "connecting" see pictures below for the issue. It seems like the printhead is moving REALLY fast during the infill parts so the "flow" seems to be too slow to keep up with the fast print head? Not sure! (20 or 25% infill) Anything I should adjust? Thanks!! Aaron