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michaelb123

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Posts posted by michaelb123

    Ultimaker 2+ printing at start level above not at build plate

    in UltiMaker Cura

    Posted

    Here I saved the gcode to sd card from the new version (latest) of cura and it started fine, but then it started to move the nozzle outside the object print area and print weird things!?  Since the printer was originally a Ultimaker 2 and we purchased an upgrade to the Ultimaker 2+ from Ultimaker should I use a different printer setting like Ultimaker2 rather than 2+?

     

    Is it possible to roll back to a previous firmware and use an older version of Cura?  How do I do that?

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    Z Axis appears squashed Ultimaker 2 coverted to Ultimaker 2+

    in Firmware

    Posted

    You have to upgrade to the "plus" firmware.  There are twice as many steps/mm because of the 2:1 gear ratio.  Plus I think it might turn the other way?

    Also you have to do a factory reset to move the steps/mm setting from default firmware setting into the eeprom.  Without a factory reset it tries to use all your previous values (including steps/mm on z axis).

    Also it's possible you connected a fan cable to the Z 8/16 microsteps jumper.  You want the jumper not connected - it's right in the middle of the board.  Some people connect one of the fan cables to that by accident.  If you look carefully it says something about 8 versus 16 microsteps for Z axis.  And the fan cable is close enough to a short to make the stepper switch to 16 microsteps and hence move half as far.

    Thank you so much gr5! The fan cable was indeed connected to the Z 8/16 microsteps jumper. I also needed to do redo the firmware update to Ultimaker 2+ and then perform a factory reset from Advanced's menu on the Ultimaker.

    I remember when I was reassembly the cables that I wasn't sure which jumper the fan cable should connect. I guess, I just messed that up horribly. Anyway, thank you for the expert advice.

    Z Axis appears squashed Ultimaker 2 coverted to Ultimaker 2+

    in Firmware

    Posted · Edited by Guest

    Hello, I have an Ultimaker 2 that was upgraded to the Ultimaker 2+.  I'm using Cura 3.0.4 and my z-axis appears to be squashed using the benchy print out.  I'm not sure what is wrong can anyone please help point me in the right direction.

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    Height should be around 48.00 mm, but I'm getting closer to 24.00 about half.

    I did replace the heat bed on this unit at one point as well as upgrade the device from Ultimaker 2 to an Ultimaker 2+.  I'm curious if this is a cura setting or a cable backwords, etc?  Thanks,

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    Nozzle Rubbing on UM2+ PLA

    in Materials & profiles

    Posted · Edited by Guest

    Thank you sooo much for some feedback on this matter!  I am indeed on the latest version of cura version 3.0.3.

    Basically: switch combing mode off and z-hop on

    A few questions:

    1. I don't see the setting to make cura print the infill hotter.
    2. I'm seeing a longer print time with all the retractions for "Z Hop When Retracted."
       Would it perhaps be better to try turning on combing mode and putting a higher travel avoid distance?
    3. What infill pattern would you use with Z Hop When Retracted?

    Nozzle Rubbing on UM2+ PLA

    in Materials & profiles

    Posted

    Hello,

    I have a ultimaker 2+ and I've tried extensively to get the bed perfectly level. I ended up buying a feeler gauge. The calibration card sent with the Ultimaker 2+ upgrade kit appears to be about .15mm thick. So, I tried leveling the bed to .15 mm distance from the nozzle (nozzle size is .4 mm). We'll the nozzle would eventually jam using the default settings for a "fine" print quality inside cura.

    I decided to try and give the nozzle a bit more room and leveled the bed to .2 mm distance. This was better, I no longer heard as much of the nozzle rubbing against the 3d print object. The print, however, still managed to jam the nozzle.

    So, I changed some settings inside CURA after asking a raprep irc chat. They suggested that I increase the layer height to 0.25 mm and the line width to .5 mm (nozzle size is .4 mm). I did as they suggested and I also change my print profile to "normal" and now the prints have stopped jamming and I'm getting decent quality prints. I eventually fine-tuned the nozzle width to 0.48mm and I'm happy that it is now at least printing my designs.

    My issue is this, in CURA it suggests a smaller line width will result in better quality. Why does my printer have issues when the line width is less than the nozzle width? My theory was the matter wasn't being smashed down enough and therefore would eventually start to rub against the nozzle on longer travels. But, I'm not certain that is the answer and if I should always have to set these settings to get good quality prints.

    They also suggested that I need to measure 100mm of filament feed through the printer to ensure good quality but, I have no idea how to do that with the ultimaker 2+.

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