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Link

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Posts posted by Link

  1. 59 minutes ago, robinmdh said:

    I mean  the new purge material next to the buildplate behavior we build for the material station. This is currently not being used on a standalone S5/UM/S3 etc.

     

    This is done to create a more consistent tip on the filament when it is being unloaded and makes sure you start with the material you intended to when loading. But it also helps because when you purge between the same material we at least get rid of the degraded material in the tip of the nozzle. This reduces clogs because without the added pressure of extruding close to the buildplate it is easier to get rid of hardened/carbonized plastic.

     

    Ok, thanks. This purge function sounds useful. Will it be added to a standalone S5 ?

  2. On 1/1/2020 at 12:36 AM, robinmdh said:

    A small new years gift for the tech savvy out there, with an Ultimaker S5 or S3.

    A patch with layer count/total below the time remaining.

     

    NOTE: this is not coming from Ultimaker officially, this could brick/break your printer, no guarantee is given on these steps or this file, while this is likely to work with a bunch of versions I've only tested with newer than the recent release.

    And if there are any complaint I'll of-course remove this immediately.

     

    Steps to enable:

    • enable developer mode. in config -> settings -> Developer mode
    • login via ssh or putty as root, the password is "ultimaker" (if this is new to you then maybe don't try this).
    • Run:
      
      wget http://robin.den-hertog.org/patch.sh
    • Run:
      
      bash patch.sh

    The printer should then reboot. If it doesn't reboot then it's likely the patch failed to apply, maybe you need to update to newer firmware, You don't have an S5 or S3 or I made a booboo, let me know 😅.

     

    I strongly advice you to turn developer mode off again, it makes the printer very unsafe!

     

    Then While printing you should see something like this:

    320910859_Screenshotfrom2020-01-0101-26-14.thumb.png.1ce115788d3ac3449f71e56e9cb2367e.png

     

     

    Thanks for doing this, really good of you to take it upon yourself to help out, however whilst i am more than comfortably with performing the steps, as you can imagine with these printers being so expensive doing something like this (which may brick it) is not really a comfortable situation. But it is exactly this type of addition which we so badly need. I cannot see why the UI guys cant add these under a seperate setting people can add. They obviously don't print much themselves if they feel you dont need to know the layer height, its a key value which you can directly correlate back to Cura, you see an imperfgection in your print the first thing you do is check Cura, but without the layer number is really hard to make any progress working out what the print was doing !

     

    Also, when you are setting up a new material, you need to be able to change retraction settings on the printer, as it stands you have to reslice a whole new print to just see the affect of less retraction !, it takes so much longer to debug or set anything up with this UI, its painful !

     

     

  3. On 1/30/2020 at 12:46 PM, robinmdh said:

    I don't think heating up the nozzle has any significant impact to it's lifespan, our stress tests show very little wear/tear from continuously extruding (non abrasive materials, so no copper fill or carbon fill) material and being hot, though I don't think we've specifically done heat up/cool-down cycle testing. The material inside the nozzle will degrade by being heated up though and repeated heat ups without use can cause clogs, this seems very rare. The new purge behavior helps a lot in this regard.

     

     

     

     

     

    when you say new purge behaviour what are you referring to ?

     

    thanks

     

  4. @robinmdh i know this has been mentioned before but please can we have a someway to see more information on the display, like layer number, be able to adjust retraction on the fly etc, i understand you don't want this available by default but an 'engineering mode' so people who want to see it can would be really really good !. Having this basic print info missing on the display is really lacking compared to even a £200 Chinese printer. It just makes debugging print issues so much harder !

     

    Also, is there a way to stop a a disabled print core heating up during the bed level process, i have my second core disabled (but still in the print head) for single extrusion prints, but during the bed level process this core still has to heat up to over 200deg just to do a single probe at the start of the sequence, why does this need to happen and also if that core is disabled in cura when does it prob at all ?, i would rather that core wasn't heat cycles for no reason, that will def add to its potential lifespan.

     

    many thanks

     

     

  5. Hi,

     

    I am finding that the default retraction settings of 6.5 distance and 25 speed for PLA to be too much for my S5 with capricorn bowden as each retraction is pulling in air, and consequently after every retraction there is the popping of the air bubbles and tiny holes in the print.

     

    What have others done in terms of retraction settings with capricorn ? also is it best to adjust distance or speed to prevent pulling air in, assuming distance. 

     

    thanks 

  6. 42 minutes ago, territerriterri said:

    Cura only considers the unsaved settings as 'changes'. When you save it, and then use the "copy all changed values to all extruders" options, it will not copy it because it doesn't consider it changed. 

     

    I don't think the behavior you're expecting is intended to work in Cura. I can bring this up to the team for discussion, but I think it will be considered as a change request more than an issue. 

     

    @maht FYI. 

     

     

     

    Thanks for getting back to me @territerriterri. It would be really useful to be a able to blanket copy all the settings from one extruder to the other, when I am updating my profiles I regularly hit save to ensure i don't lose anything and importantly I want to fully test the settings with multiple prints before I copy to the second extruder. I can't do that without saving the profile changes. This really is a key piece of functionality on a dual extruder machine. 

     

    Many thanks 

    • Like 2
  7. thanks for the feedback, i had not thought about the fan noise, very good point. I don't tend to print ABS, mainly PLA and some PETG, so still on the fence about if this is worth it. Also as you say the firmware needs work.... 🙂

     

    Have you tried PLA ?, did you need to adjust any temperatures due to the printer now being enclosed ?

     

  8. Anyone used the Air Manager ?, I am not sure how effective it can be for removing UFPs and unread before that normal HEPA and Carbon filters aren't good for UFPs. Also I did read that the air Manager increases the temps in the build chamber so not great for PLA etc. I know the extractor fan is meant to speed up for for PLA to keep the temperature down but read in another thread some conjecture around this ?.

     

    Any overall views ?

  9. 17 hours ago, Smithy said:

    I use it occasionally when printing CPE/PETG to avoid the zits, but when I use it, then I just enable it without any fine-tuning.

     

    agree, yes i have it enabled for PETG, and like you at the defaults. I was considering messing with it for PLA for example, but more out of interest than i think it will actually be a good idea :), i guess i just want to tinker..... 🙂, i have heard mixed reviews for materials other than PETG

     

    thanks 

     

     

  10. many UI based systems have a engineering mode where users who need it, can enable extra feature details. 

     

    I can appreciated what the UI guys are trying to do, however the reality is ANY fdm printer will never be simply plug and play, the system simply has too many variables meaning some level of debug and tweaking will always be required. My S5 is very very good, but i have developed my own profiles as the default ones were not optimal and i often tweak for new materials etc, locking down the UI to make it clean necessitates this is and always will be a plug and play system, which FDM printing will never 100% be.

     

    Please add a engineering option, would make everyones lives much easier.

    • Like 1
  11. On 12/18/2019 at 1:55 PM, robinmdh said:

    bed leveling (at least the single probe concept) was explained here:

    The probe logs are saved on the printer in:

    /var/lib/griffin/probe_reports_*

    so if you enable developer mode:

     

    That way you could have a look at the raw measurement data.

     

    One of the problems is for instance blobs at the end of the nozzle which the leveling then  has to push trough, changing the curve, this and many other unpredictable influences and differences between printers do make this a difficult problem. And like @tinkergnome said it then also influences buildplate adhesion which is very important as well.

    As far as I'm aware there is no constant set to change the height.

    Interesting, so from what you say here the aim is to actually achieve the first layer gap as set in Cura but inaccuracies result in the reduced height from the specified?, and if things worked exactly as designed the first layer would be as set in Cura and to get adhesion better more flow would be required, for example to 120% ?, I assumed a squish was added in as a number to reduce the layer height by but thats not the case ?

     

    Thanks 

  12. 5 hours ago, Link said:

    Many thanks, I assume this will work for all the settings already changed in one profile ?, for example extruder 1 profile has be changed and saved already, by just selecting this option all the settings from 1 will be applied to extruder 2 ?

     

     

     

    unfortunately i can confirm this doesn't work/solve the problem, if you make changes to extruder 1, save those changes then using the above option doesn't copy them across to extruder 2. I can only assume it only works before you save the changes. The issue will be for most people, is that they optimise and save a profile for 1 extruder and simply want those settings copied to the second. How can i do that @territerriterri ?

     

    Thanks

  13. I agree, I was confused when i got my S5 and was really concerned that the offset plugin might not work. In fact I checked the plugin would work before I purchased the S5 as it was key for me. Without it you have no control over the first layer height. @ahoeben is a life saver with that plugin. If that ever stopped working I would see my S5 in a very different light !, best machine by far on the market but it 100% needs that plugin !

  14. 1 hour ago, territerriterri said:

    image.png.4e7b6e85b308248f509c7224c6239c42.png

     

    Can you try right-clicking on a setting and use the "Copy all changed values to all extruders"? 

    I think this answers your question. 

    Many thanks, I assume this will work for all the settings already changed in one profile ?, for example extruder 1 profile has be changed and saved already, by just selecting this option all the settings from 1 will be applied to extruder 2 ?

     

     

  15. ok, so have tried ColorFabb metal fill, Steel, Copper and Bronze on my S5 using the CC core

     

    In terms of printing it prints fine, not quite as easy as straight PLA, prints pretty much like a wood-fill, so if you have a profile for that you are pretty much there. Retractions are a challenge, but still doable, just the usual light deposits where the material oozes slightly, but again nothing major

     

    the biggest issues is getting the advertised finish, the Copper for example is pretty much just orange, pla with Copper in it, which is fine, one of the recommended methods to make it much more copper-like is to sand then polish, i have tried this and it still looks like orange(ish) pla with a slight shine. According the Colorfabb wire wool then polish is the way to go, so i am going to try that. But at the moment the part doesn't look like i had hoped. 

     

    What does surprise is the weight of the part, its really heavy, feels like metal in terms of mass.... i just need to get the finish and then I would recommend. Not tried the finishing on the steel yet, i assume that will need the same finishing method once i perfect it...

     

    Wire wool coming today

    • Like 1
  16. i summary the hight of the first layer, which is set in relation to the heights found during the active level are hard coded by the UM team, they have devised how much squish to apply to the first layer. You can keep adjusting the first layer height but the same amount of squish will be applied. This hard coding of the first later squish was also a issue for me when printing PETG for example where i needed a bit more of a gap. 

     

    From day 1 i have used the offset plugin, it solves all the issues. I am assuming you want to get the right 'height' for the first layer, and compensate for the reduced adhesion by increasing the flow in the first layer ?, just add some offset to get the height you want and increase flow to make it stick.

     

    it does seem strange UM hard coded this offset as without the plugin printing PETG would be a total nightmare as the nozzle is too close and picks up filament, same thing for metal filaments.

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