I’m trying to print a self-created object of 198mm(W) x 111mm(L) x 48mm(H). There are no inconsistencies detected by Repetier, neither by slicing that looks quite well. But when printing the object is truncated at arround 180mm(W) on the left side (from a user in front of printer point of view) and the lines goes in a nonsense print path (over holes, etc…).
I’ve tried to change the fill factor and object potitionning but even if I turn the object of 180° it is still on the left that it is truncated (!!) I don’t understand what’s happening there neither how can I solve that (?).
Some help would then be appreciated !
Thankyou in advance,
Z
It probably means the printer configuration in Repetier is incorrect. Or at least that the printer boundaries are not defined the same in both Repetier and the printer.
It seems that the printer “doesn’t wants” to go more on the left side than the yellow straight you can see on the picture. I’ve changed the left offset on the repeater side but it has absolutely no effect… So it seems raby was right but I can’t manage to find out where i can change the boundaries into the printer ? maybe directly into the firmware source code ?!
I think I have exactly the same problem. My nozzle in home position is always at the most right side. (Almost off the printbed)
Haven’t really checked into it since it did not bother me yet because I haven’t really printed anything big.
For the moment it seems I’ve succeeded at least to start the printing of my object by centering it into that boundaries, but it does not looks right to me : why the printer can print among the very right border of the bed but cannot go more than 3-4cm closer to the left border ?!
[quote=“Zorro_X”]but cannot go more than 3-4cm closer to the left border ?![/quote]This is a normal behaviour : The 2-4 left cm are used to park the heads when printing with both heads. And only the second head is able to reach the left side of the bed. That’s why a left offset is defined : “Left offset : -38.7”. So the left 38.7 mm are a no go zone. It’s materialized in Repetier by the big black dot on the bed area : you can’t put your object to the left of that dot. And that’s also why the XMax is defined at 200 and not 240.
The print area is X 200 and Y 180. 20 mm are lost on the Y axis because of the small fan. If you’re putting the fan horizontally you can get those 20 mm back. But you’ll have to change the values both in the firmware and Repetier to achieve this. On my printer I’ve modified the left boundaries so I can use 215 mm on the X axis instead of 200. But you ought to be careful if you’re using 2 extruders.
[quote=“VEL337”]Yes you need to turn it 90degrees on the Z-axis.
Be aware that such large object will curl if the height of the bed isn’t set correctly[/quote]
ok, thankyou, I’ll try that… and yes, it curls very often, I just can’t manage to have a constant calibrated distance between the noosle and the bed…
Of course I follow your calibration official tutorial to calibrate the bed height…
in the manual it gives a good idea how close the bed must be.
But you’ll have to adjust the bed so that the bed is so close as possible but still printing good.
[quote=“VEL337”]in the manual it gives a good idea how close the bed must be.
But you’ll have to adjust the bed so that the bed is so close as possible but still printing good.[/quote]
Yes, that’s what I do, but it behaves like the bed is not completely flat : near the borders the calibration is always bad, but near the 5x5cm square at the center it is always OK…
ok, now that I’ve solved my Err:MINTEMP problem I’m able to give it a try as you said… Unfortunately if I rotate my object by 90° among Z axis it is truncated in both sides !
So I’m printing back as shown in the first picture, it seems to be the least worst position…
You are printing with only one nozzle. The K8400 is designed to be usable with two nozzles (which is my configuration). The second nozzle is mounted on the free half of the print head (left side from the y-rod on your picture).
However, I’m a little bit confused yet.
When doing auto-home my front panel gives me the position 200;200 (x;y). In this case the right nozzle is nearly at the edge of the glass plate. But with one nozzle I can cover the whole 200x200 mm area.
All points in the print area has to be accessible by both nozzles. So in this configuration the print area is limited by the left nozzle, which is approx. 23mm inside from the outer edge of the glass plate on the right side. But when you drive 180mm to the left, you will reach the left end of the print area for the left nozzle; to move to this place with the right nozzle, you have to move additional 23mm to the left, or you have to specify the print dimension in x direction to 180mm.
So please check the display settings, maybe there are some differences in the default values for the firmware for one or two nozzles.
[quote=“hoh61”]
So please check the display settings, maybe there are some differences in the default values for the firmware for one or two nozzles.[/quote]
I know that a second noozle can be added, but regarding your last suggestion, how (where) do I check for those “default values” you’re talking of ? Into the firmware or into the repetier software ?
The limitation (truncation) seems to be maded by the firmware despite what is displayed into the repetier. But in the repetier I’ve not found anything else than the settings described above…
I didn’t check if it is the same for the one-head firmware. Since you should be able to install the latest firmware-version, you can check it in your source files.
The area settings in any slicer can be smaller, but the maximum is defined by these firmware parameters.
