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ultiarjan

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Posts posted by ultiarjan

    Overheating and small part issues

    in Improve your 3D prints

    Posted

    yep, try again with a bit bigger towers, and as @gr5 mentioned 

    Quote

     "position the towers such that when it's printing one of them, the fan is blowing on the object to be cooled as much as possible"

     

    So don't place them at the back, but next to the small dot's on your main object, so while printing the tower some airflow goes onto the main print.

    New UM2+ style printer?

    in UltiMaker 3D printers

    Posted

    I think a new single core Ultimaker printer, with a core but a much lighter head than the UM3/S5 would definitely make sense.  But as @ahoeben mentioned the only people who know won't disclose anything until it's there.  My gut feeling is it will not happen but that's pure speculation.

     

    In the meantime, if the UM2+ is on the boundaries of your budget why not get a 2th hand? the machine is super reliable and if you reserve a little budget for spare parts it will serve you for years. 

    Custom shaped print areas

    in UltiMaker Cura

    Posted

    Ok first... I have no real clue about the technique behind cura, but I’m thinking cura has the option to define forbidden area’s of the platform, so perhaps that’s current functionality you can use? You can define the area’s in the printer definition file.

    Fed up with Cura

    in UltiMaker Cura

    Posted

    8 hours ago, nicnas said:

    Glad I do not own a Ultimaker printer now.

     

    So just to be clear, you don’t own a Ultimaker printer, but use Cura, the free open source product for which Ultimaker is paying a large part of the development, and when something goes wrong you feel the need to bash Ultimaker?  I understand being frustrated sometimes.....  and you excused yourself already..... but please be nice....

     

    • Like 6

    Something weird with my printer

    in UltiMaker 3D printers

    Posted

    Not an expert but I would guess some issue with the power supply or heater/pt100 sensor.

     

    Can you try with another power supply? (Do you have more than one UM2 or can borrow one?)

     

    For the heater and the PT100 temperature sensor you can check if they are ok by measuring there resistance with an ohm. Meter. The PT100 should be about 108 ohm at room temp, the heater I’m not sure but can check later if needed. And if you do the above you need to disconnect them from the main board, also check if the connectors are tight, if not this is probably already the issue...

     

     

    Large Part

    in UltiMaker 3D printers

    Posted

    I don’t see the picture, but from what I understand your nozzle clogged and then the feeder is grinding the filament.

     

    I would advise to clean the nozzle (google: atomic pull or cold pull) and maybe also clean the feeder if it happens again.

     

    The main reasons for this issue is printing to fast and/or printing not hot enough. Try starting with Cura’s default profiles and you should be fine.

     

    Finally, do you have an Ultimaker2 (with the small black feeder) or an ultimaker2+ (white feeder) if its still the old black feeder I would advise to upgrade with a bondtech feeder.

    Debris in silicone nozzle cover

    in UltiMaker 3D printers

    Posted

    How fast it will degrade depends on the material and temperature used, but it should last for more than just a few prints normally. Luckily the part is super cheap (like 1 euro) so in case of doubt just replace it. It’s a part of which you always want to keep a few on stock

    Printing problem on S5

    in UltiMaker 3D printers

    Posted

    Some thing that come to mind;

    Do you use the active leveling? if not I would advice to do so... A one time manual leveling to have the best leveled bed mechanically, combined with active leveling is the best.

    Did you try to rotate the glass 180 degrees to see if its an issue with the glass not being flat?

     

    Ultimaker Firmware 5.2 stable

    in Firmware

    Posted · Edited by ultiarjan

    1 hour ago, Matioupi said:


    Right... I was convinced of the opposite... How is this implemented technically ? is there a chance that this comes as an upgrade sooner or later ?

     

    Technically it's simple, it would just mean an upgrade with the S5 feeders, and implementation in the firmware like in the S5. But it's not very interesting for Ultimaker to do so, so I'm pretty sure this will not happen. At some point there will probably be a successor for the UM3 that will get this (and at the same time fix the lack of abrasive resistant feeder on the UM3)

     

    edit: not saying the technique is simple, Ultimaker struggled for years with it... but now it's ready on the S5 it should be simple to move to a new machine....

     

    UM2+ reboots very early in print, how to debug?

    in Firmware

    Posted

     

    My gut feelings says that if a power issue causes the reboot there probably is no log...

     

    About the firmware, I'm running tinkerware, but on mine you find the version in ADVANCED/PREFERENCES/VERSION, may be a bit different in the original firmware, not sure.

     

    Can you borrow an UM2 power brick from someone to rule out it's the cause? (where are you located?)

     

    The first thing I would do is check all connections on the main board, are all connectors ok, are the screws (depending on how old the machine is) for the bed heater tight?

     

    And unrelated, but why do you set filament to 1.75, is the machine converted to 1.75 ?

     

     

    • Thanks 1

    Maximum recommended chamber temperature for S5?

    in UltiMaker 3D printers

    Posted · Edited by ultiarjan

    Don't think there's an official Ultimaker maximum, but besides steppers in my experience you're quicker running into issues with the hotend, as you need air to cool it. Looong time ago when i still printed ABS on an enclosed Ultimaker2  i had this issue. Think I kept the chamber temp below 50c to be ok at the time. Obviously the characteristics of the Core are different, so it's a matter of experimenting I guess...

    Temp problems UM2

    in UltiMaker 3D printers

    Posted

    The temp sensor in your Ultimaker2 is a PT100, I guess it may be defect or the connector is not properly seated.

     

    You can check the temperature sensor with a ohm meter. The resistance at room temp (20c) should be around 108 ohm. See linked table.

     

    You can measure by taking the TEMP1 connector off the mainboard (see picture, sorry Ultimaker took the first picture I found and it was an aliexpress clone 🙂 )

     

    image.thumb.png.4919245abc3934b53421324a5d9e19d4.png

     

    https://nl.wikipedia.org/wiki/Waardetabel_Pt100

     

     You can get a replacement part at any ultimaker reseller, for example;

    https://www.makerpoint.nl/en/ultimaker-pt100-b-sensor-um2um2ext.html

     

     

    image.png

    Ultimaker Firmware 5.2 stable

    in Firmware

    Posted

    2 hours ago, Brulti said:

    I'm not sure if it linked to that last firmware update, but since I did it my printer often disconnect from CURA and I have to go to Preferences > Confugure CURA > Printers and click on 'Connect via network' (I'm connected via ethernet) to re-establish the connection. It's not much, bit it's quite annoying to have to do it every few prints. I think it happens every time I switch material or printcores...

     

    I had the same, yesterdays update seems to have solved it, so that annoyance is gone...

     

    Upgraded an UM3 and S5, both seem fine, the XY calibration is working again. 

    Can't judge the WIFI as mine are all wired.

     

     

    Ultimaker 3 Extented - Nozzle Offset Plausibility Problem

    in Improve your 3D prints

    Posted

    Cleaning the BB core is anyhow a good idea so a few cold puls with PLA can be usefull. If you run the latest firmware there is indeed a bug that causes to much retraction before the XY calibration. Ultimaker is taking a silly amount of time to repair it but a new firmware is expected any moment now. Just pushing the material manually (lift the level on the feeder and push the material) at the start will do the trick.

     

    You can ofc also just first check the BB core by doing a single extrusion test print using the BB core with PLA, just print a small cube and see if it's ok. You may need to "overrule" in Cura as cura will tell you the BB is not for PLA, but it's actually fine, it's just a bit more prone to dripping due to the internal shape of the BB nozzle, but for a single extrusion print that hardly matters...

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