Marlin 1.1.8 update problems

[Mr.Hotwire]

I have been trying to update my Pro C to Marlin for some time. Its having z axis issues when doing a rapid movement.

Here is a Video that can better explain the issue.

https://youtu.be/A59Ac9Lt2zE

[William]

Hi, you need to install your z-axis fixing plate.

[Mr.Hotwire]

The top plates? I removed them as the threaded rod is so warped, that it rocks the X Axis up and down as it travels on the Z.

You will notice that I have red caps on top that hold the guide rods, allowing the threaded rod to spin freely. THIS got rid of my wobble.

But that is not the problem, the problem is that once it starts to do a FAST move just prior to printing, they loose synch or something and one side of the carriage is misaligned.

But thanks for noticing, and garnering my reply. its not the fix for everyone, but it worked for me.

[Mr.Hotwire]

Hi, you need to install your z-axis fixing plate.

This was also part of the problem,

https://www.youtube.com/watch?v=7sdZNw8r8xk

[William]

Hi, you need to install your z-axis fixing plate.

This was also part of the problem,

https://www.youtube.com/watch?v=7sdZNw8r8xk

Hi, If the bearing is stuck, you can add lubricant.

[Mr.Hotwire]

Its not a bearing, in the 2nd video it was a combo of the shafts and the screws being very bent.

the problem NOW is firmware, Im sure of it.

[Mr.Hotwire]

So this is in my configuration.h

Code: Select all

#define DEFAULT_AXIS_STEPS_PER_UNIT   { 79.89, 80.36, 2603, 95 }   //Orig { 80, 80, 4000, 500 } 93*2 = DRV8825 1/32 Stepps

Because I have threaded rod NOT Lead screw.

I have disconnected the screws from the Z-Axis steppers. And I STILL get the same noise. It is as if one of the steppers is skipping steps.