patrick181

Hi UM2 with the + upgrade kit Firmware 3.3.0 Cura 4.11 When printing and Aborting from a USB session, the bed does not lower but the head will home to the corner. If the cancel action is somewhere on layer 1-10ish the head hits the aft buildplate clip (because its not lowering the bed). USBPrinterOutputDevice.py file shows: def cancelPrint(self): self._gcode_position = 0 self._gcode.clear() self._printers[0].updateActivePrintJob(None) self._is_printing = False self._paused = False # Turn off temperatures, fan and steppers self._sendCommand("M140 S0") self._sendCommand("M104 S0") self._sendCommand("M107") # Home XY to prevent nozzle resting on aborted print # Don't home bed because it may crash the printhead into the print on printers that home on the bottom self.printers[0].homeHead() self._sendCommand("M84") Im not a code expert but I think something can be added at the end of this. Could someone point me in the right direction? Thank you, Patrick

Issue was submitted under the link provided. Thanks again for your help, I will try the dev version.

UM2 Cura 15.04 TweakatZ 4.0.2 I have multiple prints of the same part that need fans on at 9mm Z. Problem I'm having is that TweakatZ does not reset at the beginning of the next print/part and leaves the fans on for the remaining parts. Cura is set for Print One At a Time. Any ideas how to accomplish this? TweakatZ documentation indicates a "Reset previous values when printing one-at-a-time" if this the same thing?

I appreciate the heads up from Ultimaker. However when I look at this print head I see a design decision being made to market towards a dual extrusion setup vs optimized cooling for a single setup. There is no apex of flow here therefore, to me, makes a lower quality result than what is possible. That is against the mantra Ultimaker is bringing with upper tier results out-of-the-box. At this price point I think a revision of the fan mount is in order to compensate for the decision that has been made not to carry on with dual extrusion. A retooling of the bends in the current plate steel fan mount should work and I hope this is considered before a v3 is announced. My2c

Yes no issue, thanks for the help.

"Fans only seem to come on using the "Cool" section of Cura and no Tweak at Z activated." I'm mistaken, the fans did not come on at all with either control. I found that I had fans zeroed in the custom material menu on the UM2 itself. They need to be set to 100%. This seems to override any commands in the gcode. Whats odd though is that the gcode can override the other settings.

Cura 1504 Tweak at Z 402 I cannot seem to get the fans to come on with Tweak at Z both in mm distance or layer. Fans only seem to come on using the "Cool" section of Cura and no Tweak at Z activated. Any ideas?

Thanks, I did some "google images" comparisons. There seems to be a tiny difference in how some of these steel units are bent to form at the factory. But the difference is under 1mm so I don't think its effecting anything. I will try some cheap methods to get some air blast closer to the right side of the nozzle before trying one of the upgraded shrouds.

Thanks for posting this considering there is no trail demo of Simplify3D to justify a $150 gamble. ;-(

I guess its not "droopage" as much as it seems to be "shrinkage"...

Updated Topic, my bad...

I found a flaw in the fan design. Having trouble printing anything with a sphere. Print starts off well up to layer 8 then I see perfection on the left and droopage I the right. It's obvious that right side needs direct cooling like the left for prints like this. Trying to print the killstix Xbox controller stick extenders offered up at thingiverse. Any way around this issue other than to print the updated shrouds?

Forgive me Lofrank, your original post led me to believe that you have not tried the 3mm yet. Your last post suggests that you have used 3mm and had problems with it. Have you tried 3mm?

I am using 2.85 and 3mm without problems. Seems as though my UM2 cannot tell the difference.

Thank you, I figured there was an engineered limitation in them. Do they mount to LAN as a //storage device or do you need a 3rd party app to read from them?

Links submitted here and in the other thread do not exactly answer this question. Can anyone confirm that SD WIFI card can be written to over WIFI?

I found another thread that confirms this. Apparently they redesigned the electronics for the release of the "Go" unit post 15.02. I can attest as I did update last night to 15.04 and found no change in behavior of my extruded fan which is always on.

Was this update included in a firmware release with Cura 15.4 on 4/14/15? If so is there a release notes somewhere? Thanks

Any advice out there on creating support structures in the model? Like support style or patterns that work best? Material efficient methods? I created these rings to hold up the countersunk ledge. I sank them 0.1mm below the ledge but they still stuck pretty good and I had to drill them out. (The face seen is touching the build plate) Thanks

Version is 15.02.01 Thank you. I think its a combination of both your replies. This was my first attempt with ABS that failed 4 times on the factory 260c setting with no brim, I paused/abort the job each time. I do think that the initial retraction is further than the "speed" load action and is a bug. The PLA settings are perfect on this machine, I dont have an issue or failed print yet on that stuff. (knock on wood)

UM2 Ultimaker Brand 2.85 Black ABS Bed 90c Extruder 250c Im having some trouble with the retraction of filiment during the completion (or cancellation) of an ABS print job. What is does is when the job is finished it retracts the filiment out of the nozzle. When I go to run another job, it does not push it back down far enough and ends up starting the print with no extrusion. What I have to do is go into the Advanced menu and move the filiment back in until I see it in the bowden tube just before the extruder. I set the standard retraction from 4.25mm to 3mm. I'm ssuming this is the area of setting for this problem but I think im wrong as the end-of-job retraction seems much more than 4.25mm. Is this correct to solve this issue? Thanks