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dave_w

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  1. I think you have two different issues. The first is that you need to make sure your printer's firmware is configured for a single nozzle, dual extruder, that way any instructions sent to the second heater are ignored by your printer and won't cause issues. If using Marlin firmware there is a single nozzle option you can turn on in configuration.h for cyclops type setups with a single nozzle/heater and multiple extruders. Secondly, in Cura, click on the settings icon next to the title for the materials settings and turn on all the options for materials.There are 6 different temperat
  2. I tried it and it seemed to use the Z sensor offset value rather than adjusting the height as such. If you had a Z offset of -1.5 and set the first layer setting to 0.1 in Cura thinking it would print at 0.3 instead of 0.2 it would crash the nozzle into the bed. Probably as well it's been removed !
  3. Have a look at: https://ultimaker.com/en/community/51715-cura-303-temperatures-all-over-the-place There are a series of hidden temperature settings for the hot end and you need to set them ALL to your target temperature. Turn them all on in the settings so you can see them and set them all. Doing so fixed most of the issues I was having.
  4. Save it to disk and open it with a text editor, it's just a text file so easy to read outside of Cura. If you print through a secondary server (Octoprint or Repetier server) you can also view the code through those.
  5. I created a new custom machine definition but ran into all sorts of problems with that, still not sure why but I got it to the stage where I could choose my custom machine type but after that I couldn't get any further, having to delete the machine definition in terminal before Cura would successfully launch. Anyway, I've not given up on it as I think there is room for more fine tuning available by using a custom machine... if only I can get it to work ! In the meantime, I made the setting suggested above visible and, finally I see where it was getting those strange temperatures from ! Hav
  6. Thanks for the suggestions so far. Having looked through the printer definitions files and gone back to the "base" file that they all seem to inherit from, I can see the settings that may be causing my issues. I'll try creating my own machine type with all it's features and see if I can make the temperature changes a bit more sensible. It makes sense to cool the extruder when it's not in use and I guess the heat up speed/time means it can start the warmup process prior to the extruder being needed. I'll make up a very simple test file with 2 small cubes being printed one from each extruder
  7. That's the intended behavior for multi extrusion prints. There are more than this two temperature settings. It's an outstanding feature of Cura (IMHO). I suggest to enable all settings in the material section. Which kind of printer do you use? Have you choosen the correct printer model in Cura? I ask, because there are additional settings in the printer profile (not visible at the user interface) that define the speed at which the nozzle heats up and cools down as well as the minimal time an extruder has to be inactive before the nozzle is cooled. It seems that you are using values that are n
  8. I've attached a code snippet below generated by Cura 3.0.3 using two extruders/hot ends, the primary one (T0) with PETG at a print temp. of 245 and the second (T1) with PVA printing supports only at 220. The first layer runs as expected with the two hot ends heating up to the set temperature right from the start but at each layer change Cura generates some weird temperature changes either side of it. Seemingly even while a hot end is in use. T0 is being set to 220, 235 and 245 while T1 is being set to 205, 210 and 220 despite all my settings in the profile and the material for print and stan
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