Link to the video:
https://youtu.be/jaMIdnIp7qU 22
My makerbot replicator 2 started to make loud noises when I was trying to adjust the platform level. The x axis was also tilted when it was moving. Does anyone know what is wrong with my makerbot?
It looks like your Y-motor cable is failing. Call makerbot, they should be able to send a replacement. To check it: wiggle the y motor cable while you are mid print, if the y motor starts jumping around and skipping steps thats your problem.
you have to check belts tension and the end switches. Moving by hand the extruder bring to position 0 and check if the end switch works, it has a red led.
If you’ve moved it or jolted the case one of the Y shafts (forward to back axis) may have become dislodged from their mounting points in the frame.
Check that all the shafts are properly homed in their mounts. They just push into clips.
Also check that the pulley drive wheels are properly seated in their mounts.
No offend, but it´s not the Y-motor cable nor the end switches. You can see in the vid, that Y movement on the right side(!), where the motor is, works correctly. You can also see, that endstop X is working. But you are not reaching endstop Y (left back corner), while traveling to end position. But why?
The exciting belt Y is on the right side, then you transfer the force through a thinner, long rod in the front to the Y belt on the left. And there is something going wrong. X gantry isn´t moving correctly on the left side, that´s why X gantry is not parallel to frame while moving, that´s why you cannot reach the endstop on the left side, that´s why you have a blockage in the right back corner (moves to far in the back).
Solution:
1. Check, if the Y belt left is clipped in correctly in the y-to-x-secondary. While clipping in, make sure, that the gantry x is parallel to the frame. But from the vid it seems clipped in fine, so:
2. Check, if the pulleys on the thin long rod on the front of your printer are tight fit and the force is transferred from Y belt right to Y belt left correctly. Tighten the set screws on these pulleys. I could bet, this is the reason.
edit: oh, and your x belt seems a little loose btw.
Hello, I had the same problem, I change the stepper motor driver module,and fix the problem.(replicador 2x) Source on m.alibaba.com 30
The video clearly shows the right hand side moving back and then forward. The left hand side does not move as far in either direction. You also hear the sound of a belt skipping on a pulley. Start by turning off the power of the unit.
1) There are four bearings holding shafts or pulleys at the four corners of your machine. Make sure that the bearings are seated securely in the housing and that the bolts holding the bearing supports are tight.
2) The fore and aft motion of the gantry is done by belts on either side. Pluck the belts on each side to see if they have similar tension. They must be similar in tension. If not then the bearings or pulley may have come loose from the cabinet.
3) Move the print head to center it left and right. Slowly move the print head gantry towards the back and then the front of the unit. Does it move smoothly? Do the two sides move in sync?
4) If it moves smoothly, but the side are not in sync, then move it all the way to the front, so both sides are against the front of the unit.
5) You need a small allen wrench that fits the set screws in the drive pulleys. Now make sure that the small set screw in the pulleys, on the pulleys on each side, on the front top layshaft, are tight. The right hand pulley transfers the motion from the belt to the layshaft. The left hand pulley transfers the motion from the layshaft to the left hand belt. If either of these are loose the left hand end of the gantry will not move in sync with the right hand end. If this is the problem, you will know it is fixed when you move the gantry forward and back. It will move smoothly and both sides will move evenly.
Post back.
Sounds like your X-Axis ribbon cores are fatigued out. Are your prints shifting too? It’s an easy fix so long as you have a soldering iron and some electrical tape.
I went through the steps you suggested, but the x axis is still tilted.
Link to the video:
https://youtu.be/QFtCnAaieBY 5
There is a lag when the motion transfer from the right to the left
Since it is purely a mechanical connection between the right to left sides of the Y travel there must be a mechanical issue.
It looks like you have good tension on the left drive belt. Has the belt skipped some how?
This is all speculation, But… I think you should remove the left rear drive wheel and bearings from their mount (The silver spinning thing in the first few seconds of your first video) by pulling the shaft down and forward. Then pull the carriage fully forward on the left and right side. While holding the carriage in the most forward position press the bearing/ drive wheel back into their mount. Hopefully the belt will be back in sync with the right side and all’s good.
As to why this happened, Dunno but possibly your crossover shaft (Just behind the front door hinges) has slipped?
check wiring root stepper x
