x2 cncfusion kit#2 - Problem with Z axis binding
Hi guys,
Last weekend I finally mounted my cncfusion #2 kit on the Sieg X2 mini mill. I have a big problem on the Z axis. Cncfusion is not replying to my emails.
When I mounted the ballnut block on the side of machine, with the 2 snugly fit screws and the 12mm bolt, the Z motor mount was like slightly behind the column, I was able to to pull it forward a bit with loose screws; holding the shaft by hand, and tighten the screws back in. Now the back of the Z motor mount was nice flush with the column.
The biggest problem is, the ballscrew was slightly leaning to the right. Aligning the Z motor mount, looking at the center screw (from plastic stop on column), I had to pull the ballscrew slightly to the left, to get the center hole aligned with the center hole in the column. The Z motor mount sits nice flush on top of the column and I continued drilling the 2 holes and put the screw and nut in. Again, Z motor mount sits flush on top of column, center screw nicely aligned with the hole in the column, but I had to slightly pull the ballscrew to the left to accomplish this. And this is where the problem lies.
I put up a video on youtube that shows the movements. The Z axis goes kinda down easy, but up is a problem halfway, I hear click click click by ballscrew nut.
the video is here: X2 cnc conversion - cncfusion kit - YouTube
I have a feeling that the bore of the ballnut block is not perpendicular with the edge so that's why the ballscrew is not straight? I mean, the ballnut block is flush mounted on the edge of the column, why is the ballscrew not straight?
Can you help me out please?
Re: x2 cncfusion kit#2 - Problem with Z axis binding
I have exactly the same problem.
Re: x2 cncfusion kit#2 - Problem with Z axis binding
Quote:
Originally Posted by
SteveinSD2
I have exactly the same problem.
If you mean "Problem with Z axis binding", then it is all about alignment - from end to end. You need to make the appropriate adjustments to each end. I have had mine off and on a few times and it takes a bit, but always manage to get the adjustments so there is free travel up and down to the ends. I originally had to modify one of the holes on the Mill column as the holes on the Mill didn't match the top plate, but no problems with binding.
Re: x2 cncfusion kit#2 - Problem with Z axis binding
Quote:
Originally Posted by
pws
If you mean "Problem with Z axis binding", then it is all about alignment - from end to end. You need to make the appropriate adjustments to each end. I have had mine off and on a few times and it takes a bit, but always manage to get the adjustments so there is free travel up and down to the ends. I originally had to modify one of the holes on the Mill column as the holes on the Mill didn't match the top plate, but no problems with binding.
Thanks. I was told that the ways on the column were out of alignment so I just ordered a new column from LMS and will see if everything fits better with it and the cncfusion bolt on kit. Thanks for the reply. :-)
Re: x2 cncfusion kit#2 - Problem with Z axis binding
As I remember Michael @ CNCFusion is a hobbyist and does this part-time / has a real job to pay the bills so expect a delay for email.
Its not the kit that is at fault its generally the very variable quality control from the mill manufacturers in China - a degree of 'fettling' is to be
expected - its just not stated that explicitly in the sale blurb!
Re: x2 cncfusion kit#2 - Problem with Z axis binding
I love the cncfusion kit and believe that Michael was very helpful. It is the quality of the x2 mill from Harbour Freight that is in question. Thanks for the reply.
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