|
Post by cipispe on Sept 15, 2017 17:21:12 GMT
Hello. In the last month I experienced leaning prints on Y direction (maybe 5-10 deg with the vertical). I increased the Y motor current, but that did not solved the problem. I wonder if is just a problem of misalignment (I suspect that Z axis are somehow a little bit leaned towards back of printer). I want to make a few remarks about my modification to DP4: - printed X axis ender piece (in the right position of X axis); the original piece just craked and I replaced it with a new printed one; I am unsure about geometrical precision of this plastic piece...; I ordered aluminium pieces for X axis and cant wait to mount them. - aluminium plate 3 mm under the bed (is it possible that my bed is to heavy??) Any ideas ? Thanks.
|
|
|
Post by tanephar on Sept 16, 2017 0:27:43 GMT
It could well be a calibration issue, I know I seem to harp on about calibration, but it is so important when the tolerances we deal with are so small. I had a similar issue, when I checked my Y axis movement, I asked the firmware to move the axis 100mm, whilst measuring with my vernier calipers, so getting the bed to push the calipers from 0 and measuring the amount traveled, I did this 5 times and averaged the result, I was out by 0.3mm over the distance, I worked the calculation and save the resulting increase in steps/mm to firmware, rechecked travel, and the result is great prints, The rule of thumb with calibration is, every time something changes on your printer it needs to be calibrated, X,Y,Z and even E. I have actually got into the habit now of checking movement once a week, it takes about 10 minutes and is well worth the effort to catch any errors before they ruin a print job.
|
|
|
Post by cipispe on Sept 16, 2017 10:12:40 GMT
Thanks for the answer. I know the calibration method and did it once on Y axis (new value 'y steps/mm' in setup), but I did not got visible results. Maybe I will try again. Any other ideas? Thank you.
|
|
|
Post by tanephar on Sept 16, 2017 23:27:00 GMT
If it is Z axis leaning back then there are a couple of things I put together here: www.thingiverse.com/thing:2472064 which is a gusset that will strengthen that axis, until your aluminum ones arrive, and then there is this: mega.nz/#!R4pgnCoD!0FVVvvjPK8O35EACvd8Tbqwkpf4cO_ehZ2V-D2NX_Bw which is a 90° bracket with a cut out making it easier to fit. I have fitted them to my DP5 and that gantry is rock solid now.
|
|
|
Post by cipispe on Sept 17, 2017 17:38:36 GMT
Thanks. I will try it.
|
|