shurik

Well, it looks like @Nicolinux is not alone. Recently, I switched to the truly wonderful Olsson's block, but the same problem remains: Faberdashery or Colorfabb PLA, 0.4mm nozzle (0.8mm one gives the same results), 20-50mm/sec, 210-230C. There are no clicks of underextrusion. It simply doesn't push enough plastic through as it goes. The white teflon was replaced to the new on the occasion. The glass-coated one didn't hold that much good, apparently. What could it be? The idea #309 of @neotko might not be that crazy but it is a complete Chinese for me. :-)

@rubin - what size do you want the model to be? The original as in the files or scaled? I'll try to have a look on it if the time permits.

Once upon the time, @Daid (the guy who wrote Cura) gave me the advice of exporting files in DAE format. He said, Cura has fewer problems with them. He was obviously right, saving lots of my time.

Hi @gr5 and the the rest of the gang, thanks for the info! I will try some tests once I'll have some time for this. I do not know the GCode and have not much time or desire for it at the moment. Are you sure the problem is in the firmware and not in Cura? What is the latest stable firmware that can be used? The newer Cura versions are of the same quality as the forum, which is really annoying but that is another story.

Thanks @nallath for the reply. It looks mostly like a bug in the code generation algorithm. With each subsequent part, the material is being pushed forward for less and less at the beginning of it, as compared to the real need. Or, it might be retracted a bit too much at the end of the previous part. In any case, it should be somewhere in Cura logic and it doesn't seem to be too complicated to fix. What is really strange that the issue was not pointed out previously by anyone. It is persistent and can be easily reproduced. Any way to resolve this please?

I do print via the SD card only. @Daid - Maybe, you can help here? The forum is a mere shadow of former self... :(

Yeah, was trying to insert exactly this animated gif some time ago but the forum engine didn't support the animations. I never play with the gcode (and do not even understand it), but could these settings play a part in the problem: ?

Overwhelming. It's so sad to see what this forum became...

Anyone?

Just to let you all know that I'm also in this problematic-top-layers club. And exactly as on the photos above, sometimes they do touch and sometimes not, during the same print. Weird.

The issue might have been arisen previously, but this forum makes the communication difficult, to put it gently. So here is my trouble. WIth Cura 15.04 on Windows 7, when there are several parts to be printed using the "Print one at a time" setting, the first one prints OK. Then, the skirt of the second part starts, but the plastic barely comes out at the beginning of it, catching up usually on the 1st layer of the second part. As the number of the parts goes up, the problem gets more and more severe. Usually, no more than 2-3 parts can be put on the glass to get printed successfully. It looks like Cura doesn't calculate the retraction for each new part correctly and not extruding it enough at the beginning of each new part. Is there a way to deal with it?

@didierklein - sorry for the delayed reply. I think it is hairy, indeed. The travel speed is 300mm/s, retraction is 5.5mm/35mm/sec. And I'm having even more hairy prints sometimes, just didn't care to take a photo of them.

Why we need to teach our kids 3D printing. My son's first print. <3

Can I revive the topic, please? And give this forum yet another chance? My problem is well-illustrated here: Faberdashery Desert Tan, 210C, 50mm/sec, .2mm layers. There are other types of the filament giving me the same trouble. What can be recommended?

Of course, @gr5, I used hollow placeholders.

Thanks, @gr5! All parts were printed separately on my UM2 and then glued together. I wish it would be possible to simplify the process without compromising the quality. Yes, it was a bit of the work but the results are nice, indeed.

1:100 scale, it took me some time to draw, print and assemble. Done mostly on .2mm, 50mm/sec with the original 0.4 nozzle.

And I'm thinking of the shipment costs...

You are great engineer! This is absolutely outstanding in my eyes. I want to see it in a movie, please!

Thanks guys! The Superglue did the trick with the magnet as well as with the attachment of the red and the white PLA. My colleague was very happy indeed, because his wife was very happy with the gift. :-) So, I got his permission to publish the magnet.

This is obviously doesn't come anywhere close to the amazing works of the art that were posted here in the old good days of the forum. However, I made this fridge magnet for a colleague of mine who wanted to make a birthday gift to his expecting wife. As he says, the positive effect was overwhelming. So I'm just happy having made their day. :-)

Go for it. Once you have the new white thingy, you won't regret that. Had similar problems, the replacement did just wonders.

Yup. It is indeed seem to be very tricky. The poor cats simply crack and split by horizontal layers. However, I do print at 30mm/sec at 250C and the fan is off. What else can be done?

Hi there, Who also uses this filament? It cracks horribly, even when the fans are off. Cannot print even the cuddling cats - they are split at several places along the horizontal lines. :-( I use the glue stick, bed at 70-75C, head = 250C, 0.1mm layer, 30-50mm/sec speed.

Hi guys, Last Thursday I gave two consecutive lessons at my son's school for 7-graders. It was a great success and we all enjoyed a lot. Below is my feline battalion on the way to conquer the hearts of the children: Only three cats out of the seventy made their way back home. :-)