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V3DPrinting

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Posts posted by V3DPrinting

    Where "Limit support retractions" feature gone with 5.3.x ?

    in UltiMaker Cura

    Posted · Edited by V3DPrinting

    Hi to all

     

    I am not able to find the "limit support retractions" setting in the 5.3 or 5.3.1 settings.

    In 5.1.1, it's under the Travel section. (I don't remember in 5.2 and I haven't it installed anymore)

     

    I have currently an issue with a dual extrusion print (support interface is printed in Breakaway).

    To avoid having oozed breakaway in my print, it avoids printed parts, but as there is no retractions, Breakaway oozes and gets into the print.

     

    Previously, turning off the "limit support retractions" features solved that issue.

    But it looks like the feature is not anymore there in 5.3.

     

    Thanks for your feedback.

    Weird behavior of "Pause at height" script with UM S5

    in UltiMaker Cura

    Posted

    Hi to all

    I have implemented a "pause at height" in a print job on an Ultimaker S5, but I noticed some weird behavior.

    The S5 is a 1st Gen printer running last 7.X firmware.

     

    Here's the script generated

     

    ;added code by post processing 
    ;script: PauseAtHeight.py 
    ;current layer: 635 
    M83 ; switch to relative E values for any needed retraction 
    G1 F300 Z66.6 ; move up a millimeter to get out of the way 
    G1 F9000 X320 Y230 
    M104 S0 ; standby temperature 
    M0 ; Do the actual pause 
    M109 S220 ; resume temperature 
    G1 F9000 X216.454 Y121.439 
    G1 F300 Z65.6 ; move back down to resume height 
    G1 F1800 ; restore extrusion feedrate 
    M82 ; switch back to absolute E values

     

    So it should park the printhead in the back right corner, set the temperature to 0 then pause the print. After the resuming, it should reheat the Hotend to 220 and wait to stabilize. No extrusion move should be done (there was already a retraction at the end of the previous layer.

     

    The actual behavior is the following :

    - printhead is moved out of the part, then to the front left corner

    - temperature is set to 0 in the meantime

    - print job is paused

    - when resuming, a extrusion move is done, though the Hotend is cold -> severe grinding causing no extrusion when resuming.

    - printhead is moved to the back right corner

    - temperature is set to 220°C and wait to stabilize

    - printhead move to the last printing position

    - print job resumes.

     

    To make it short the pause is not usable.

     

    Quick feedback is appreciated.

    Cura 5.3 : Issues in start gcode

    in UltiMaker Cura

    Posted

    Also I have realized that the 2 functions created by my vendor works fine except if I disable the extruder 1.

     

    16 minutes ago, ahoeben said:

    Sorry, I was mistaken in my previous reply.

     

    {machine_nozzle_size, x} should work just like that (with the extruder nr filled in)

    {filament_amount} is replaced by a list, so you cannot specify an extruder number.

     

    For the full list of replacement patterns, see http://files.fieldofview.com/cura/Replacement_Patterns.html

    Thanks for the link !

    Cura 5.3 : Issues in start gcode

    in UltiMaker Cura

    Posted · Edited by V3DPrinting

    Hi @ahoeben

    Thanks for your feedback. Indeed {material_used,x} and {machine_nozzle_size,x} are in the Settings and replacement patterns list. I've used them.

    I have realized that {used_material,x} and {used_nozzle_size,x} are functions generated by a plugin or a script written by my vendor to accommodate IDEX on Cura.

    I need to go deeper in the implementation

    Cura 5.3 : Issues in start gcode

    in UltiMaker Cura

    Posted

    I use some replacement parterns in my start gcode :

    {used_material,x) -> adds Tx Material used by the tool

    {used_nozzle_size,x) -> adds Tx Nozzle size used by the tool

     

    It was working fine with Cura 5.2.2.

    Upgrading to 5.3 has broken the replacement pattern for these two settings.

     

    Is there a way to fix it ?

    How to create a printer definition with Cura 5.x ?

    in UltiMaker Cura

    Posted

    I found the solution.

    It's linked with the way the BCN3D printer was defined. Implementing the BCN3D specific plugins (2) has solved the issue.

    Also I have realized that material modification are not in real time committed to the material file, but recorded into the current machine until you change machine or variant or material.

    So changes were not visible in the files just after the change in the GUI.

    How to create a printer definition with Cura 5.x ?

    in UltiMaker Cura

    Posted

    Hi @nallath

     

    I had some time to spend on that topic, so I've made some progresses

    Currently I have:

    - backported BCN3D Epsilon W50 definitions, extruders, meshes, quality, materials, variants into Cura 5.1.1.

    - modified the quality definitions in order to remove all the material related parameters such as temperatures, retraction settings, flow rates (otherwise the materials parameters are not properly taken into account)

    - created the necessary quality definitions for the materials I have from the marketplace

    - modified the material definitions to add the bcn3dw50 machine and variants (see attachments) so it should have dedicated values for the machine / variant.

     

    I still have an issue to have the materials updated when altering in the preferences panel for Epsilon W50: it doesn't alter the material definition as for the Ultimaker printers

     

    Did I missed something ?

    Thanks for your feedback

    generic_abs_06.xml.fdm_material.zip

    How to create a printer definition with Cura 5.x ?

    in UltiMaker Cura

    Posted

    Hi to all

    I'd like to create a printer definition, as it is not listed in Ultimaker Cura 5.x.

    I already have the definition (machine, extruders, meshes, variants) from BCN3D Cura. But it's based on Cura 4.X

     

    I use Cura 5.x with plugins on my Ultimakers and like to keep it with for the others (only one material database, only one SW to manage, ....). BCN3D Cura has no plugins nor the last valuable improvements.

     

    I have already created custom printers to use Ultimaker Cura 5.x on my BCN3D Epsilon W50. 3 printers for Single mode (left extruder), Dual Mode and Duplication mode) and it's working fine.

    But BCN3D has changed the Epsilon's FW and the filament sensor is not working anymore.

     

    Previously, they used some comment lines in the gcode to activate the left / right filament sensor. I now suspect they also use the machine definition name in the end comments of the gcode.

     

    Having a custom printer means you have 'custom' in the machine definition name, instead of 'bcn3dw50'

     

    I've found the GitHub page on how to create a printer definition, but it's not for Cura 5.X

    https://github.com/Ultimaker/Cura/wiki/Adding-new-machine-profiles-to-Cura

     

    Any clue were I can find a similar page for Cura 5.X ?

     

    Thanks in advance

     

    3D Solex Hardcore keeps clogging with PLA

    in Third party products & modifications

    Posted

    No. It has varied a lot and the latest are bigger than the ones in 2018, which were the smallest.

     

    That said, except in some very particular cases, as said in my post above, I don't have to complain with it.

     

    The most common problem with these hardcores is the PTFE wearing when printing a lot of high temperature materials (ABS, PC, ...)

    I have bought a spool of PTFE at the right diameters, made a guillotine to have a clean cut and some tools.

    I fix the hardcore within 15 minutes following the disassembly procedure posted by @gr5 some years ago.

    3D Solex Hardcore keeps clogging with PLA

    in Third party products & modifications

    Posted · Edited by V3DPrinting

    7 minutes ago, mrender said:

    Fan, filament, enclosure all fine.

     

    Is your enclosure closed or open during the print ? Air Manager ?

     

    Latest HardCores have a smaller cooling radiator, so lower performance than the Ultimaker PrintCores, so if your enclosure is closed with no sufficient cooling, with materials like PLA or PVA, you increase the risk of heat creep / jamming.

     

    That said, the HardCores are working fine for me for many years with all materials since that thread. I don't have any air manager station.

     

    The only serious issue I had was with PA CF where the moisture has created severe heat creep and jamming. Carbon fiber transfers very well the heat ....

    3D Solex Hardcore keeps clogging with PLA

    in Third party products & modifications

    Posted

    23 minutes ago, mrender said:

    Hi, No just PLA.

    Have you checked the printhead cooling fan ? The one on the front.

    Are you using an enclosure ?

    Looks like an heat creep due to insufficient cooling

     

    Other option is : your filament is not dry enough, so the melting temp has been lowered by the moisture and it's getting too soft, then enlarges in the PTFE tubing and creates a serious jam.

    UM3 NOZZLE 2 always leveled too close to bed after active leveling

    in UltiMaker 3D printers

    Posted

    4 hours ago, LoS said:

    Hi! This happens on my S3 when using 2 3d Solex Hardcore (AA + BB). When using 3d Solex AA + Ultimaker BB everything is alright.

     

    I had the same issue with 3d Solex Hardcore on my S5. It was linked with the spring being too weak and the seating of the print core in the printhead.

    Checking the spring length and extending it a bit has solved the problem for me

    UM3 NOZZLE 2 always leveled too close to bed after active leveling

    in UltiMaker 3D printers

    Posted

    1 minute ago, upatamby said:

    Since then, manual leveling works again as it should, with the Z offset being stored correctly.

    Active leveling also works fine now, but only when the frequency is not set to Never. If you perform an active leveling and the frequency is set to Never, or you set it afterwards to Never, then the printcores are invariably too low. So I suspect that @V3DPrinting has set an Active leveling frequency on his printers that is not equal to Never. Is this correct?

     

    As I swap quite often printcores and material, I have the leveling frequency set to Always.

    To be honest, I don't see the point of using the Active leveling when set to Never, and a Factory reset + Manual leveling is the best option then.

    UM3 NOZZLE 2 always leveled too close to bed after active leveling

    in UltiMaker 3D printers

    Posted

    2 minutes ago, upatamby said:

    I have now (against my better judgement) tried active leveling again, but extruder 1 was printing too low as usual.

    @upatamby

    I am using the FW 5.2.17 on 2 UM3E since it has been issued. That have fixed my dual extrusion issues. And I print a lot in dual extrusion and a lot as it's my business.

    I can confirm that the FW is working fine. But active leveling is not only FW, HW is also involved and may have a significant impact.

     

    Have you checked the print cores springs ?

    If the spring is too weak, then the z offset for that printcore would be too high during the active leveling procedure, therefore it would print too low.

    Maybe a first test would be to swap your printcore 1 by another AA printcore.

     

    You can also do a test on a scale : you hold the printcore by its body and press the nozzle on the scale until it starts moving. Then note the force applied. It should be somewhere above 0,9 kg for a genuine printcore, to be confirmed by @gr5

     

    Have you checked the buildplate height against the printbed frame ? It should be 14 mm or so. Make a search on the forum, you should find some gauge for an easy adjustment.

    If the distance is too high, the springs would not be compressed enough and the build plate would move when doing the active leveling. Same result as for the printcore spring.

     

    Also checking the sensor would be a good thing (in maintenance menu).

    UM3 NOZZLE 2 always leveled too close to bed after active leveling

    in UltiMaker 3D printers

    Posted

    12 hours ago, JohnInOttawa said:

    I haven't upgraded since I rolled back to 4.3.3 several releases ago.  UM3 was OK but UM3X was not. 

     

    For UM3X users, which firmware version is giving you better results?  5.2.17 or 5.2.18?

     

    Thanks!

    John

    Hi John

    If I remember well the history, the version 5.2.17 fixes the leveling issue for UM3X (that's the version I'm on with my two UM3X), version 5.2.18 fixes another bug related to the display, but nothing more.

    • Thanks 1

    UM3 NOZZLE 2 always leveled too close to bed after active leveling

    in UltiMaker 3D printers

    Posted

    On 3/17/2022 at 3:58 PM, upatamby said:

    The problem is back in 5.3.0. 😡
    The right extruder tries to print into the glass plate again after active leveling. It makes no difference whether I set the Active Leveling Frequency to Never or Allways. 
    I have no time for this.
    I now will try to find out if/how I can downgrade to firmware 5.2.17. All help is welcome. 
     

    I've stopped upgrading my UM3E printers, as nothing new under the sun except that bug fix. So still in 5.2.17 and I won't upgrade them anymore for the time there is no compatibility issues with my S5 as a group host or Cura.

    Material settings for different custom printers in Cura 4.11

    in UltiMaker Cura

    Posted

    Hi to all

     

    Maybe the subject have been already discussed, but I haven't found an answer yet.

     

    Here's my question :

    I have different type of printers : Ultimaker 3 Extended, Ultimaker S5, BCN3D Epsilon W50 and custom based on RRF (Duet3D)

    I am currently using Cura 4.11 as a single slicer for all those printers, sharing the material database together and benefiting from the plugins and latests releases. (For those who are interested in how to use standard Cura for BCN3D IDEX, please PM me.)

     

    Material parameters like Temperatures, Retraction settings, cooling have to be personalized per printer type.

    For the Ultimaker family, it's well done and you have a set of parameter for the UM3X and for S5.

     

    Is it the same for the custom defined printers ? Are these parameters individualized per machine ? 

     

    I ask the question because all the print profiles for custom defined printers are available when a custom printer is activated.

    Thanks for your feedback !

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