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eduo

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Posts posted by eduo

  1. Unless I'm mistaken, the print surface of the Selpic Star A from Kickstarter is 120mm^3, rather than the 100 mentioned.

     

    The manufacturer uses this cura profile so there's no better option. Have any of you tweaked the settings to get better prints?

     

    I'm getting half-decent ones but I've never been able to match the quality of the two included gcodes (vase and rocket).

     

    Also: Mine makes too much noise. It seems to be an error in how it's mounted but I read this seems rather common. Have any of you found this problem too and hopefully found a way to solve it?

  2. 1 hour ago, GregValiant said:

    Have you calibrated the E-steps?  (I don't actually know if it's even possible on that printer.)

     

    When Cura calculates the E-value for a particular extrusion it's "E = LineWidth x LayerHeight x ExtrusionLength / (PI x FilamentRadius^2) and that gets defined as 100% Flow.  So when your printer sees an E value it must move from the previous E-location to the new E-location and provide the correct number of E-Steps so the extruder pushes the correct millimeters of filament.  It is the E-Steps/mm that insures the correct volume of filament was supplied by the extruder.

    The variables then are the Filament Diameter, the E-Steps/mm, and the Flow % (which is a fudge factor).

     

    I tried first with the profile for the printer linked above, which has a default value supposedly ad-hoc to the printer. I then tried tweaking it. I'll try contacting the manufacturer, it's so far from ideal there must be something else in play.

  3. On 6/4/2021 at 5:40 PM, davidbarros said:

    Hey Greg, I've just confirmed and it's both in mm.

    Thanks anyway . 

     

    Can anyone with a Star A printer pass me a gcode file exported from cura that works ? 

    Thanks in advance

    I'm in this same situation. If I print the buit-in gcodes (Vase and Rocket) they come up perfectly.

     

    Even trying the profile posted and all tweaks, all my printgs are seriously underextruded. Changing filament width didn't help. 

  4. Found how to update the config file. Printer is astoundly slow and noisy. The latter seems to be because there's a thick wire in the path between the fan and the heater. I wonder if that could be modded out.

     

    At any rate, fan speed seems to be hardcoded at 100%. Can't be reduced via the config file or onscreen, as far as I can see

  5. On 5/30/2021 at 8:50 PM, Anto777 said:

    hi, i downloaded the profile but cura said it is an invalid or broken file. It has a unknow format

    Rename the file so it has .cura extension.

     

    Alternatively, use the manufaturer's: https://drive.google.com/drive/folders/1JNS2ilYK1HiQA0XcJVHyMyV6n_wgWoYF?usp=sharing

     

    Extract the corresponding zip contents and place in the root of the SD card.

  6. On 4/17/2021 at 9:40 AM, foo_bar said:

    At retraction test, The speed had to be set to 30 mm / sec.

    Tower.thumb.png.b317ce820082b2bd985359aee83551a1.png

    Original site: https://www.thingiverse.com/thing:4825787

     

    towers.gcode 4.54 MB · 10 downloads

     

    Hi. I couldn't help notice you got the heated bed installed.

     

    I got mine as well as the LCD but I just can't find how they're supposed to be installed. Do you have a link to the instructions or a quick summary of them?

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