eduo
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Posts posted by eduo
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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.
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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.
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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
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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.
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On 4/17/2021 at 9:40 AM, foo_bar said:
At retraction test, The speed had to be set to 30 mm / sec.
Original site: https://www.thingiverse.com/thing:4825787
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?
Cura profile for Selpic Star A
in Third party products & modifications
Posted
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?