Hello, I have a problem that I tried to solve through Shoutbox. No luck so I am pasting our conversation here. Please help. Hi, when autoleveling X axis is OK, but when it wants to test upper left corner (X min, Y max) it does not stop and head hits rear wall of the box. Head keeps going on Y instead of stopping to measure. Please help. All steps prior leveling went well according to the manual. When moving for 10mm in x direction head moves right amount, but when moving on Y it moves muc h more then it should. Here is picture of Y pullys. I noticed thet Z axis moves less then it should (2/3 movment) Whole conversation: 56 minutes ago - Gianmarco Baldini: Hi, when autoleveling X axis is OK, but when it wants to test upper left corner (X min, Y max) it does not stop and head hits rear wall of the box. Head keeps going on Y instead of stopping to measure. Please help. All steps prior leveling went well according to the manual. 41 minutes ago - PsyVision: correct pulleys on Y axis? 34 minutes ago - Gianmarco Baldini: yes, it is not possible to miss it, right? Looks the same as in manual. 32 minutes ago - PsyVision: had it homed before hand so it knew where 0,0 is? 32 minutes ago - Gianmarco Baldini: Also after Homing, X is in center on 150mm, but Y is on 140, but on screen it says 68 31 minutes ago - Gianmarco Baldini: Yes, when I put X and Y on 0 nozzle is on correct position 31 minutes ago - Spoon Unit: Auto Home should take you to the front left, not the center (at least that's how it is on the dual) 30 minutes ago - Gianmarco Baldini: AutoHome is not on 0, it is on X150 Y140 28 minutes ago - Spoon Unit: if you turn the steppers off, is the movement of the x and Y axis completely smooth ? 28 minutes ago - Gianmarco Baldini: On display is X 150, which is OK, but Y on display is 68 and in reality is on 140 28 minutes ago - Gianmarco Baldini: Yes movement is smooth 26 minutes ago - Spoon Unit: when you Prepare > Level Bed, is the first measure point all the way at the front left ? 24 minutes ago - Gianmarco Baldini: Yes, first two points are front-left, then front-right, then it goes to X 0 and in Y it does not stop on upper-left. It hits the wall instead. 23 minutes ago - Spoon Unit: Yours is a Pro or Lite ? 22 minutes ago - Gianmarco Baldini: Sorry, first point is right-front, then left-front, then it hits the wall on rear-right 22 minutes ago - Gianmarco Baldini: It is PRO 21 minutes ago - Spoon Unit: Mine is a dual, so we are on different machines 21 minutes ago - Gianmarco Baldini: It hits the wall on third step REAR-LEFT. I have some trouble typing 21 minutes ago - Spoon Unit: It sounds like the system has the dimension of the bed wrong 20 minutes ago - Gianmarco Baldini: Yes, it seams so. I do not know how to fix it 20 minutes ago - Spoon Unit: I think there's a way to look at that in the firmware, but I'm not fast enough with this all to remember where precisely 19 minutes ago - Spoon Unit: there's no Y+ end stop, so the system relies on the firmware for this 19 minutes ago - PsyVision: the firmware has it ok, ive been reading it lots 18 minutes ago - Spoon Unit: is there a way to see on the LCD what the firmware thinks the dimension are ? 18 minutes ago - Gianmarco Baldini: It is latest one from December RC3 10 minutes ago - Gianmarco Baldini: Maybe steps on y motor are wrong. Because display said Y68, and when I move it to 0 it goes to 0, but it travels 140 - not 68 mm 7 minutes ago - Spoon Unit: ahh - now that makes me wonder about whether you have the cogs right 6 minutes ago - Gianmarco Baldini: Cogs? 6 minutes ago - Gianmarco Baldini: What is cog? 6 minutes ago - Spoon Unit: sorry - probably wrong term 5 minutes ago - Spoon Unit: the metal things with teeth that transmit motor motion to the pulleys 4 minutes ago - Gianmarco Baldini: But there is only one way to put it together
Double check that you've used the right motors (check all of the specs) and the right pulleys (different numbers of teeth).
My bad, I swapped z and y motors. Probably it happens when you assemble printer at 3am. My apologies for taking your time, and many thanks. You saved me a lot of time. Best regards Gianmarco
