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ex-egll

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Posts posted by ex-egll

  1. You can remove all machines that you don't need from the resources file. Depending on your operating system this might be something that's easy or quite hard.

    You need to remove *.def.json files. Take care to never ever delete the fdmprinter.def.json.

    If you have a UM3, you need to keep the fdmprinter.def.json, ultimaker.def.json & ultimaker3.def.json

    Thanks nallath, will give it a try

  2. Hi Tim, I had a similar issue. I got it running ok, but not sure how! It was either uninstalling both Cura 2.5 and 2.6, then re-installing OR uninstall Cura 2.6, re-install it using a programme that records all file and registry changes (I used AShampoo Uninstaller, but there are many out there), then uninstall it with that programme. This removes far more changes than the regular uninstall. After that a regular Install woked fine. Needless to say make sure you have profiles, machines etc backed up before hand, they will disappear!

  3. Ok, further to the last post, a few observations. After using the TAB trick, I now find that CLOSE on its own will save the changes, TAB is no longer needed. This is true after closing the programme and restarting it, and after rebooting the computer. No idea why but that is the case. I went one step further and did a clean install of Cura 2.6 and this time the CLOSE button worked fine, settings were saved and the TAB trick was not needed!!

    There is one other oddity; Manage Machine Settings will allow me to change the Material Diameter, but I can not save it. If I make the change on the Print Setup portion of the main page it will be saved. Maybe that is how it is designed to work?

  4. I don't know. Have you tried editing the gcode file and removing M104 to see what happens?

    You need to edit the .json file to stop it from adding both start codes.

     

    Removing the M104 has no effect, at least on my machine. Could you point me to the location of the .json file that needs to be modified to to stop it from adding both start codes?

    Many thanks

  5. Yes you can change the start gcode. You can do this in the machine settings In CURA.

    The reason it heats the bed then the nozzle is to reduce the amount of oozing from the nozzle as it takes a long time for the bed to heat up. The oozing creates a cavity in the nozzle which requires more priming.

     

    Hi, thanks for the response. I realise that I can create my own start code in Cura but Cura inserts its own start code prior to the the user defined one e.g.

    M190 S65

    M104 S200

    M109 S200

    It was these I wanted to delete or be able to modify.

    Ok on heating the bed first, I hadn't thought about the oozing issue, although my question was more about why, for the nozzle heating does Cura use an M104 followed by an M109. Wouldn't just the M109 serve the same purpose?

    • Thanks 1
  6. Sorry, another question from a noob if I may.

    Below is the portion of gcode produced ahead of the user defined stat code in a Cura 2.6 Beta gcode file..

    ;FLAVOR:RepRap

    ;TIME:4385

    ;Filament used: 1.60282m

    ;Layer height: 0.2

    ;Generated with Cura_SteamEngine 2.6.0

    M190 S65

    M104 S200

    M109 S200

    Is it possible to change this code? Ideally I would like to change the temperature settings to:

    M104 S200 ;Start heating extruder

    M140 S65 ;Start heating bed

    M109 S200 ;Wait for extruder to reach temp before proceeding

    M190 S200 ;Wait for bed to reach temp before proceeding

    This way I can start heating bed and extruder at the same time, cutting back on the overall wait time.

    Along the same lines, the Cura generated code seems a little odd

    M190 S65 ;Wait for bed to reach temp before proceeding

    M104 S200 ;Start heating extruder

    M109 S200 ;Wait for extruder to reach temp before proceeding

    What is the purpose of the second line, M104 S200?

  7. With Cura 2.6.0 Beta I can add a new machine with ADD PRINTER / CUSTOM / CUSTOM FDM PRINTER

    I can now configure the printer, change the start and end code and save the results by hitting the FINISH button. Once the printer has been created I tried to change a couple of lines in the Start Code with

    MANAGE PRINTER / MANAGE SETTINGS and then making the changes to the start code. Problem is there is no FINISH button so I can't save the changes. I'm I going about this the right way? If not, how can I edit the Start code and save it?

    Thanks

  8. Thanks for the responses, I agree IF my machine was set up perfectly the change of direction should not matter! Time to get working on tensioning the belts better. Thanks fro the suggestion as to why the direction changes. The comment "Perhaps setting a Coast at End value would help" is beyond my pay grade! Could you possibly throw in a bit more detail?

    Thanks

  9. Hi, new to Cura. I am running A Rumba board on the printer with Marlin 1.1.0 BugFix and Cura 2.5 on the PC. My print job is simple, a circular gasket i.d 25.5mm o.d 26.5mm height 5mm.

    When printing, the brim around the gasket is printed as a continuous circle, but when it comes to printing the gasket itself the printer will go once round the circle and then reverse the direction for another pass around and then reverse direction again, this continues throughout the print. Bu printing this way I get a small ridge at the point the direction reverses.

    Two questions:

    Why does the printhead reverse direction each time a circle has been printed.

    Is there a setting that would force it to print in the same continuous direction as it does for the brim

    Thanks

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