X axis drive

[John11668]

I get all that you are saying jazz, and i agree that petesos would be better placed if he had a better machine , but it seems to me that in his current circumstances it could be not too hard a job to fit ball screw and BK nut. From what I see the BK bearing could be bolted to the outer face of the cheek, with a ball screw fitted through it and secured with the preload nut outside that. The motor end would need shortened and maybe reduced depending on the coupling size , and while there would be no easy place to fit a BF Bearing the fitup would be no worse than it is now with no support.
Yes he needs to ensure that the backlash is not occurring due to a slack fit at the coupling but that should be easily visible and remedied
What we would need to establish is whether the bore retaining the existing crosshead nut would accommodate a 12-04 ball nut, https://www.bing.com/search?q=1204+b...ANNTA1&PC=U531
and dismantling to check this should not be a hard job .

[JAZZCNC]

I get all that you are saying jazz, and i agree that petesos would be better placed if he had a better machine , but it seems to me that in his current circumstances it could be not too hard a job to fit ball screw and BK nut.

Well first off it's a BK bearing block, not a nut and I'm not sure what cheek you are referring to.? But anyway it doesn't need to be that difficult if he gets a ball screw machined to the same dimensions as the old screw.

My point was the screw you linked won't just bolt straight into place so it will need more components meaning more cash, it will need some modifications to the machine and if the OP doesn't have the equipment or the experience to do these mods himself then it's not worth paying someone else to do them or having new parts made so it can be upgraded because the machine is what it is and throwing money at it won't make it change from a PIG into STALLION.! . . .It will always be a PIG with lipstick.!

Anyway, I've said my piece on why I think it's a bad route to take based on my experience with these machines and seeing other users make the same mistakes and we obviously won't agree so let us leave it at that and let the OP get on with which route he thinks suits him best.!