Kief

Thanks for clarifying! It is a fairly small model with quick layers and i run most parameters that i think would affect heat up and cool down speed at default setting. So the most likely explanation seem to be the one you provide. I'm not confident enough to mess with the g-code manually yet but will look in to this more 🙂

Yes i figured something like this was the reason, however I thought that the temperature was adjusted to the correct level while the opposite core was finishing its layer so that it was ready by the time the cores switch?

Hi, Im printing with TPLA in core 1 and PVA in core 2. Everytime it switches to core 2 the print head pauses for 5-10 seconds before continuing. What is the reason for this and how can i fix it? seems like a huge time waste.

I have a rather large print that im doing in ABS. I would like to use 0.3 mm layer height so for the model i will use 0.8 mm core. But since breakaway is only compatible with 0.4 mm (i also only have 1 0.8 atm), is it okay to print 0.3 mm with the 0.4 core for the support?

Hi all, I am attempting a large print over the weekend (40ish hours) and planning on using an AA0.8 and BB0.4 (TPLA+PVA). The reason for the 0.8 core is that i want to reduce the print time, however i have previously only used the 0.8 core in vase mode and am looking for any tips or tricks for printing with this. Is the default TPLA profile good enough or should i tweak something? I'm thinking 0.2 layer height but could consider 0.3 if that suits the 0.8 core better. Would also appreciate input on using PVA for this as i have had some struggles in the past. There are some large overhangs that i would like to come out as clean as possible so im using support interface. Support angle at 60° and a support density of 80%. Regular supports from everywhere. Both materials are fresh from the box and will be pre-dried at 50 °C for 24 hours before printing from the material station. Appreciate any input!

My UM3 has always had issues with wifi so i caved a while back and connected it by LAN-cable, which has worked fine for months. Now suddenly it has lost connection and it gets a 169.254.x.x IP adress which i cant correct. I did try to factory reset with no luck. Anyone know a fix for this?

You were correct! A firmware recovery using newer firmware saved me.

FYI for anyone running in to the same issue: This issue was solved by using a more recent firmware recovery image. Anything older than 7.0.3 will appareantly not repartition the harddrive automatically according to the experts 🙂.

Our S5 (R1) was bricked shortly after installing the 8.1.0 firmware (dont know if they are related) and showing the U-boot linux screen and wouldnt boot at all. I contacted support which gave a detailed instruction on how to restore it using a micro SD card. With the SD-card it moved on after the linux screen and started installing new firmware as expected. However, at about 50% progress bar with a message of "2 minutes remaining" it froze. I left it alone for 1 hour until i tried rebooting it. Now every time i boot it it jumps directly to the 50% mark and freezes. I have tried several different .img files with no luck. Anyone got any tips on how to resolve this?

@CarloK 192.168.0.219 is the IP that works, the other one not at all. What do you mean by connecting it to the wifi modem? My router is the wifi modem right? in that case it is already connected to it. Could another device in the network cause this by simply being connected to the network or does it have to be directly "related" to the printer, like the router or powerline modem?

@CarloK The x differs, the IP:s I get are 192.168.0.219 and 192.168.68.115. The router is a TP-link archer AX10 (https://www.tp-link.com/se/home-networking/wifi6-product/archer-ax10/)

@CarloK Sorry for going offtopic and a huge thanks to you for all the help. Both IP-adresses indeed start with 192.168.x.x. The router on the network provides two wifi connections, 2.4G and 5G as well as the threaded connection, if that makes any difference. To my knowledge there are no other DHCP servers (assuming the router is the only one) unless it is like you say that the powerline modem provides this. The modem is a set of tp-link AV1000 PA7017 (https://www.tp-link.com/us/home-networking/powerline/tl-pa7017-kit/). I have tried to access the maintenance settings but cant figure out how to. The manual does not provide instructions either 😕

@CarloK, sorry to bother you again. I looked this up and according to the manufacturer of my powerline modem (tp-link) there is nothing that isnt forwarded because of the devices. I did get it to work somehow for a while but when i restart the printer it suddenly has a new IP that i cant even see on my network. Is there a way to permanently change the IP back to the one that worked? why does it change automatically? As you can probably tell im not very IT-savvy 🙂 so sorry if these are stupid questions.

@CarloK, I ended up installing a powerline modem to use the ethernet connection instead, which works fine. Problem now is that i cant seem to find the printer in cura. Does my computer also need to be ethernet-connected to find it?

Hi, i have this wierd problem suddenly where my printer seems to make some wierd travels and printing extra lines that cant be seen in the g-code preview in Cura. I've attached pictures which i hope explains the problem. I've circled a few of the "problem" lines that differ from the preview. From what I can tell this is not stringing but the lines are being fully extruded and the extruder is making these wierd diagonal travels across the support-grid. Material is Ultimaker PLA, black with settings straight from the NFC chip, i also tried silver, which has been printing perfectly until now. And i also tried slicing a different model with the same issue. I've also tried slicing in both Cura 5.0 and 4.13.1 with similar issues. I recently did a factory reset of the printer and the issue arose after that. Any insight would be much appreciated!

@CarloK thanks for the reply! I will try to your suggestions. Need to figure out how to update my routers firmware and disable ip.v6 lol. Would rather not have a cable running through the house so thats the last resort 🙂

I also have network connectivity issues where my printer will disconnect randomly. Once i restart it will find the connection again but lose it after a while.

Hi, i have the same issue as OP. Would love to resolve this, i tried disconnecting and reconnecting to DF but the issue remains. I have attached my log Best regards UM3_log.zip

So i had some issues with my UM3 disconnecting from wifi earlier. It seems better after doing a factory reset but now i can only see it as connected on the cloud, even though i am on the same network with my computer. My UM app on my phone can still see it as connected to the network. Is this a setting in cura i have missed or is there something wrong?

I got some nicePVA natural from 3DJake but couldnt get it to extrude. I have a UM3 with BB 0.4 core and tried the whole temperature range specified for the material but nothing happened (manual extrusion). Any tips for how to proceed?

My UM3 drops the wifi connection semi-randomly. It seems to happen within an interval of 20-60 minutes from starting the printer. When it is restarted it works again for 20-60 min. I've seen that a few people are having issues with the UM3 and wifi but i haven't found anyone with this exact issue yet. I tried doing a factory reset and it worked fine for a couple of days before the issue was back. Any ideas what i can try next?