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ataraxis

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Posts posted by ataraxis

    STEP-BY-STEP: Installation of E3D-v6 on UMO

    in Third party products & modifications

    Posted

    > because you wrote 'to be continued"

    Yeah that's because of the fans :)

     

    I installed the E3D because I am printing ABS from time to time and because I wanted to switch to a full metal hotend because of the wear of the original one. I never printed something with carbon filaments, so I cannot tell you anything about how good or bad the E3D behaves there.

     

    There are two downsides I recognized so far:

    1) The hotend fan is noisy (the small one)

    2) It's sometimes hard to remove the filament because the melted platics get stuck at the cold end of the hotend (haha :D)

     

    I would say it was worth the time and money I invested anyway, I printed really a lot with ABS.

     

    Cheers

    Z Offset plugin needs testers

    in UltiMaker Cura

    Posted · Edited by ataraxis

    That's what I would prefer too, but I don't think this is going to happen any time soon 🙂

     

    I know this approach is more expensive, but it does at least work - no matter which firmware is installed,

    I can easily wait for some seconds/minutes if the print doesn't fail then.

    Btw, the difference is not THAT big (around 0,2 seconds on my current 120 layer print).

     

    I suggest to add a dropdown field named "z Offset method" or something like that, where you can decide which ob both methods you want to use, something like:

     

    1) `classic G92 (fast but not supported by some UM firmwares)`

    2) `global offset adding (slow but robust)`

     

    You could then preselect one of both types depending on the gcode flavour.

     

    Z Offset plugin needs testers

    in UltiMaker Cura

    Posted · Edited by ataraxis

    I forked the plugin since the maintainer @ahoeben told me he is not going to change the plugin to be compatible to the new firmware. here you find a compatible one: https://github.com/atar-axis/Cura-ZOffsetPlugin

     

    This fork does not use G92 but is adding the offset to every G0/G1 Z value.

     

    I opened a PR on the original project: https://github.com/fieldOfView/Cura-ZOffsetPlugin/pull/5

     

    Tested on UM3 with latest fw 5.2.?, works.

    G92 BUG in 5.2.x

    in Firmware

    Posted · Edited by ataraxis

    Hi there!

     

    We have installed an Buildtek Flexplate on our UM3 @work.

    The problem with this setup is that automatic leveling does stop a bit too late so that the

    first layer is pushed too hard into the bed.

     

    Up to now we used the following startscript to increase the first layer height: 

    G91 ;Relative movement
G0 F15000 Z0.2  ; Move down the plate a bit
G92 Z0   ; Tell the printer that this is the zero position
G90 ;Disable relative movement

    Unfortunately this doesn't work anymore since the last Update!

     

    Why?

     

    Thank you in advance,

    ataraxis

    UM3: Lift nozzle a bit before print starts

    in UltiMaker 3D printers

    Posted · Edited by ataraxis

    Hi there!

     

    We have an UM3 @work and we have installed a BuildTek flex plate on it.

    Active leveling works again after inserting a nut and a spacer on the screw at the backpanel.

    The problem is, that the buildplate is relatively soft, therefore the nozzle pushes a bit too deep while measuring the distance.

     

    I would like to compensate that by lifting the nozzle to Z0.1 before the print starts.

    I tried to add the following start code in CURA: 

    G91 ;Relative movement
G0 F15000 Z0.2  ; Move down the plate a bit
G92 Z0   ; Tell the printer that this is the zero position
G90 ;Disable relative movement

     

    Unfortunately the printer does not do anything then... It heats up, tells me he is now starting the print but nothing happens.

    Where is the problem with the start code and is there maybe another way to change the "start height" - via the dev mode and the json files maybe?

     

     

    Thanks!

     

    Colorfabb XT, messy infill, shaking bed

    in Improve your 3D prints

    Posted · Edited by ataraxis

    looks like I am not the only one, I found a lot of others who complain about the same issue printing PETG, e.g. here: https://shop.prusa3d.com/forum/others-archive--f66/petg-and-renticular-fill-t14618.html

     

    changing from "grid" to "lines" improved the infill print quality extremely,
    what also helped is to print even the outer walls at the same speed as the rest.

     

    yeah - workarounds and hacks, but at least it works...

     

     

    EDIT:

    I finally switched to Simplify3D instead of Cura - there I use the honeycomb infill which does not intersect. Solved all my Colorfabb XT problems at once. Lovely software, expensive but worth it! Damn, I realy enjoy that extremely fast visualisation - my mobile computer isn't the fastest and CURA was always extremely slow.

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