I have still been unsuccessful getting my Prusa i3 mk2 to complete calibrate XYZ. I’ve had it since early March, rebuilt the y-axis 3x, and adjusted it countless. Help.
We can’t help if you don’t provide any information about the issue. What is it doing? What is it not doing? I would also highly suggest checking the Prusa Forums for this as well as I’m sure the issue has come up there before.
Or tel us where you live, if you live near i would love to help, just build 3 of them myselve with no problem at all.
Have you follow the prusa manual carefully in their website?
I live in Savannah, GA. I have been trying to get the XYZ to calibrate. I have adjusted the y-axis several times and occasionally the probe would be just about touching every spot (I am certain it is at the correct height) having adjusted it several times (i.e. Too low and it doesn’t recognize any of the spots too high and the hot end buries into the bed. I’ve made sure (several times) that the washer above the 2nd screw is exactly 100mm from the y end. The last two times I’ve run calibrate z the probe was to the left of the dot. I adjusted the left y-axis threaded rod slightly away, but it didn’t correct it.
After removing and adjusting the y-axis the 3rd time the pulley piece wouldn’t trigger the end stop, but I think that was b/c one of the wires was restricting it. It seemed to be pulling to the left right as the bed moved all the way to the back. I’ve checked to ensure no other wires or zip ties were obstructing anything
I’ve attempted to get everything spot on by using calipers, and I purchased an angle finder, but no luck
Pictures may help us. I’m curious about something.
Try using a ruler and lay it flat across the print bed against both sides of the metal frame. Now see if the yellow lines on the print bed match the line of the ruler. They should be parallel. If not, your frame/Y is skewed.
I’ll have to get back on the pictures. I just discovered that the midst of multiple times disassembling and reassembling the Y axis that X axis and stop wire pulled out of there and stuff so I’ve got to repair that
It is usually something simple. I had the wire bundle coming from the hotend not tucked in tight enough and it was just hitting the connector cover for the heated bed. Worked ok for several prints then started failing calibration.
That sounds like the most likely type of problem, but I can’t seem to find it. I’ll look at it again
Watch it closely during the cal process. Right before it fails is where your problem is.
Spent 5 hours in the morning and Three in the evening trying to get the XYZ calibration, but still no luck. Here is the video. Sent it to Prusa for feedback. I tried to upload video, but didn’t know how, only photos.
How do you input the Z off set?
That is the live z adjust. Where does it fail at? What part?