kenny

While I'm printing on my UM3+ I go to Tune, Extruder1, Material Flow and reduce it say from 100% to 95%, what changes in Cura do I make so I don't have to do that while it's printing? Thanks for the help Ken

I've tried countless times to get the Ultimaker PVA to stick to the ASA as a support material. It won't stick at all it drags across the part or just builds up around the nozzle. Thinking it may be moisture I dried the PVA a couple of times on the print bed with the printer enclosed to help hold the heat in(and I store it in a zip lock bag with desiccant). It still did the same thing every time. I tried raising the PVA temp a little at a time up to as high as 240c, lowering the temp down to 215c (I started at 220c). slowing it down(30mm/sec). Lowering the standby temp of the PVA nozzle. Lowering the build plate temp down to 60c, 3Dxtech recommends " 90-110°C, cool the bed down by about 10-20°C after the first couple of layers". Any changes I tried I did one at a time. The PVA works well as a support when I use it with PLA. I wrote to 3DXtech and they said their ASA works well with Ultimaker PVA but I may have to raise the temp of the PVA. Do I have to go higher then 240c? I just can't figure it out. Thanks for any help you can give me.

I did get it fixed. I went to the NVidia web sit and downloaded "GeForce Experience". With that I was able to check for updates for the video card. It found one, I installed it and it's working ok. When I checked in Device Manager for updates for the card it said I had the latest update. Which obviously I didn't. So, so far so good. Also the sleep option was missing from the shut down, restart, sleep options. After the driver update it reappeared.

Thanks ahoeben Yes it does have an Nvidia card. GeForce 1070. So that patch should fix it?

Was using Cura all day then all of a sudden I got this error message when I was opening it. "Could not probe OpenGL. This program requires OpenGL 2.0 or higher. Please check your video card drivers." Any Idea what it means?

Hi I recently bought some 3DXTech ASA filament. Very happy with it, it's been printing very well. I wanted to print some parts using PVA. and was wondering if anyone knew if it was compatible to use with Ultimaker PVA

I brought this same issue up back in December last year.

Yes , when I get home later

The other night I printed a part over wifi to see how it would go. It was a one hour print and printed fine no problems. So last night I printed a 4 1/2 hour print over wifi and it did it again. The blobs you see in the print is were the print head pauses for about 15 seconds and keeps extruding creating a blob of filament. I'll include the log files so maybe it will help SandervG. If I didn't upload the files right let me know. I guess I'll go back to printing over the USB stick. No problems when I did that. cap_Kens-Ultimaker-3_2020-06-23_20.42.10_X180.0Y155.0_sensor_reset.log cap_Kens-Ultimaker-3_2020-06-23_20.42.16_N1_X162.0Y155.0.log cap_Kens-Ultimaker-3_2020-06-23_20.42.22_N0_X180.0Y155.0.log cap_Kens-Ultimaker-3_2020-06-23_20.42.31_N0_X200.0Y95.0.log cap_Kens-Ultimaker-3_2020-06-23_20.42.37_N0_X40.0Y15.0.log cap_Kens-Ultimaker-3_2020-06-23_20.42.41_N0_X40.0Y175.0.log flow_KensUltimaker3.log flow_Kens-Ultimaker-3.log

I haven't done it in awhile but tonight I'm going to print over WIFI and see how it goes.

Thanks Thegladster. To be honest I’m not sure what I had the layer height set at. It may have been 0.2mm.

The picture below was printed with PETG and was printed at 50 mm/sec on a UM3. but I also have the same problem with PLA. and if I slow the print down. Do the Jerk settings help that? I did try it but I didn't see any difference. Thanks

I've had the same issue with my UM3+. Ultimaker told me that it was a wifi issue causing it. Long story short because this went on for a while with them trying to correct it., ever since I unchecked wifi in the settings on the printer and only print via USB stick I haven't had one problem. It must have something to do with my wifi maybe port forwarding or something.

Gave it a try. The color I used for the drum skin was just for a test. I had to lower the height of the support blocker to .5mm and then assigned the other extruder to it and set what settings I wanted. it came out pretty good for a first try. thanks for your help.

I'm not sure what you mean by helper volume. Could you explain it to me. I searched through all the settings and didn't see anything related. Thanks Dim3nsioneer

Is there a way to have Cura switch extruders during a print for a couple of layers and then switch back to the other extruder(I have a UM3)? I wanted to use it on the drum pictured to print the drum skin a different color then the drum body. I haven't seen how to do it yet. Thanks for your help.

Thanks for the response I do have the AA printcore installed for both extruders, but I will try disabling the print blob.

I've been having an issue that I'm not sure what is causing it. When I start a dual extrusion print extruder 2 (whether it's printing PLA or PVA) will drag filament from the prime blob across the print bed to where it starts the print and then there is also some stringing from that extruder during the print. extruder 1 has no troubles with either of that. Extruder 1 had generic PLA and extruder 2 had Ultimaker PLA. I have retractions enabled as you can see in the pictures. any ideas. I'm pretty new to Ultimaker and Cura. Thanks for your help Ken

Wow, thanks tinkergnome. That’s exactly what it does. I’ll be passing it on to UM tech support. That should be the answer. I’m just surprised they didn’t know or mention it if they did.

I bought a new UM3 extended and started having problems shortly after I started using it. The LCD screen splits, the left side of the screen is on the right side and vise versa, and sometimes the top half of the screen is on the bottom and the bottom half is on the top. Then just after that the print head pauses for 15 seconds and oozes filament causing a blob on the print. It will keep doing that every so often until I cancel the print. I have been in touch with UM, at first they thought it might be a power issue. I had it plugged directly into the outlet. I also tried moving it into another room that's also on a separate circuit. Didn't work. They sent me a new wifi card to try. didn't work. They said maybe it's defective and sent another one and also sent a Olimex board. Didn't work. Last week they replaced the printer, The new one did the same thing while I was setting it up doing a calibration print. I checked the outlets with a circuit tester. Wired correct. Checked voltage with a multimeter. 120v and steady not fluctuating at all. I replaced the receptacles anyway. It was ok for a couple of days then started to do it again today. I'm lost. I don't know what's going on. I have an other printer in this room for five years now with no problems. It's done it with Ultimaker PLA, generic PLA. I slice with Cura and just updated to 4.4.1. It did it before and after the update. Anyone hear of this or have a possible solution? Ken