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suminvent

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Posts posted by suminvent

    Unexpected printer output

    in UltiMaker Cura

    Posted

    I also have weird problems, especially with big designs (diameter 20 cm)

    The preview in cura is perfect, but it prints a complete different object.

    I have no pictures yet, but will try to make some.

    First problem is a large disk, with a hole in the middle and a cylinder around the hole. Preview in Cura is perfect.

    Everything is printed fine, except the hole.

    Using a dremel i could repair this.

    Second is a huge cylinder (20 cm diameter, 10 cm high). Preview in cura is perfect.

    From 0.2 mm on it tries to fill the inner side of the cylinder which it should not do.

    Tried with different settings but all give the same result.

    Trying with version 13.04 of Cura now.

    Will post the results.

    Marc

     

    Prints well in the front but not in the back of the printer

    in Coffee corner

    Posted

    After a lot of searching i found that the cover is attached with screws also. They are not mentionned in the manual and you can only see them on the pictures if you know where to look.

    Anyway, i had it with the ultimaker 2.

    I launched a critical ticket on the 17th of july with the question if i can send the printer back so Ultimaker can take a look at it to correct this problem. No answer so far.

    My commercial loss is already over 10 000 € (and that is an understatement).

    I'm going to look for another printer that has good support.

    Marc

     

    Prints well in the front but not in the back of the printer

    in Coffee corner

    Posted

    So i finally could do some tests.

    With the new rod, it is better, but not solved.

    So i did the following: I took off the glass plate and used pronterface to test the surface smoothness, and as expected, in the right back corner, i cannot move the paper under the nozzle, where i can in the other corners.

    So my conclusion is that the xyz table is not perfectly horizontal.

    Ultimaker could have easily solved this by also using two screws in the back of the table instead of one.

    They presume the table is completely horizontal, but it isn't.

    No idea how to solve this.

    I think i'll have to take this printer apart and reassemble that part.

    Marc

     

    Prints well in the front but not in the back of the printer

    in Coffee corner

    Posted

    OK, here are my findings with pronterface:

    I put z at 0.2, so the paper could just pass under the nozzle (paper = 160 Gr)

    Back

    No friction OK No friction

    No friction Heavy friction No friction

    OK Heavy friction OK

    Front

    What i can decuce here is that the bed is not ok but slightly curved !

    If its ok on one position, its not on another position.

    I rotated the glass plate on its back, and now its better.

    Going to try again. Nozzle is blocked :-(

    Cleaning first.

    Marc

     

    Prints well in the front but not in the back of the printer

    in Coffee corner

    Posted

    OK, i leveled it again, and now with a thicker paper.

    As you can see, the printing in the back goes better, but you can still see that the density of the printing is getting less, and when it continues to print in the front, the problem continues to get worse.

     

    I don't think the problem is competely due to leveling, but of course i can be wrong.

     

    Testing with pronterface now.

     

    Marc

     

     

     

     

    IMG 2657

     

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