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seandepagnier

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Everything posted by seandepagnier

  1. I have a few issues printing with my delta printer: If I print a cone and it's in the center of the build plate, it's perfect, but if I print it to the side, it's slightly skewed (linear extrude with translation) toward center . The difference is not huge but easy to see. If I print a very large cylinder, like 220mm diameter (build plate is 240mm) it is very slightly egg shaped. The difference is less than 1mm, but it's a problem for me because I'm trying to print toothed pulleys and the teeth end up being slightly over fit on one side and under fit on the other side. If I print two circles (cylinders) this size and stack them then rotate one, there is a slight difference about half a mm. Can cura calibrate this out somehow or do I have to do this in the printer software? How would I go about calibrating out these errors?
  2. Thanks for the replies. I missed the setting, and disabling auto slicing is much better now. I will try to upgrade cura to a newer version as well, but now my printer has a problem with the heater...
  3. First of all, cura is a great software. It allows so many parameters but manages them so I can get started easily. The biggest issue I have is, the program is extremely slow. It takes about 5 minutes just to start, and I have to close firefox before I can use it for lack of ram. I don't understand why it needs so much memory. Every time I change a field in any parameter, the whole program freezes for a few seconds. Not just for each field but for each character typed. So if I change 0.4 to 0.24 to 0.254 to 0.25 it will get stuck for 5-10 seconds each character, and might take 30-40 seconds to change this single field. A lot of times, but not always, it tries to slice again. This is the biggest problem. I work around this by highlighting the field and pasting the new value, and also clearing the build plate so nothing to slice, but it's still very slow to use, and unreasonable to have to do this. It is almost impossible to translate and rotate objects on the build plate. Sometimes it doesn't re-slice after changing a parameter, so I have to change something then change it back. So I suggest a very simple solution: a "slice" button. The program would only slice when the button is pressed, and always slice then. It could also update the parameters dependencies then, rather than doing it on the fly. That way I could quickly and easily change all the parameters just like a normal program without delay. As for rendering, it is a smaller thing, but if the frame rate is below 1 frame per second, it could just draw a box or something, then re-draw it when I stop dragging to rotate or translate. I think the developers intended auto slicing as a convenience but it is the opposite. I have a single core computer, so it cannot benefit from multiple processes or threads the way other computers do. Cura is not the only process. The kernel, other programs, and software opengl, as well as the multiple processes of cura and many many cycles of kswapd all are completing for a single core! I realize other users have faster machines, but keep in mind, hardware opengl crashes cura as well. I have seen this on several machines, and on certain computers it locks the whole computer for lack of stable video drivers. At this point a hard reset is needed by holding the power button. I did try running cura engine from the command line. This would be a huge improvement for me, but the problem is, the parameters passed to it are many pages long! It's difficult to keep track of, and they no longer update each other the way they do in the gui. Any suggestions for this, or a command line interface are greatly appreciated. Thanks for the great software, and I am by no means asking something to be done, only making a suggestion and listening for suggestions, and in the end if I should have to make a pull request to implement something that is understood.
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