Hardinge TFB conversion to CNC

[jshank]

Has anyone converted a Hardinge TFB or HLV-H to Centroid CNC?
I have a TFB that I would like to convert to CNC. I have a pretty good idea of all the elements needed. I found an old post where “tblough” added Hiwin ball screws and I even found the Hiwin drawings for the ball screw he used. I need advice or a drawing for the attachment of the ball screw nut to the carriage.
Any help with this project would greatly be appreciated.

[tblough]

Here's a STEP version of the ballscrew mount I came up with. Mount dimensions depend on where/how you mount the Z motor and ballscrew bearing block, your bed height, and what exact carriage you happen to have. I left a little extra on the mounting face for scraping in, and left the dowel pin holes undersize for reaming after installation.

[jshank]

The step file helps me to understand the mounting of the nut to the carriage.
In looking over the HIWIN shop drawings I see support units, one for the z-axis ball screw and one for the x-axis ball screw. Where these support units used where the drive motor pullies were mounted. If so how was the z-axis ball screw supported at the end closest to the headstock?

[jshank]

Forgive me I did not look closely enough at the pictures, I now see the z-axis ball screw is free-floating on the left end (closest to the headstock end)
Could you provide me with the step file for the attachment of the x-axis ball screw nut?

[tblough]

Here's a couple of shots of how the X-axis ballscrew is attached to the cross slide. I cut off the cross slide tail (since you no longer need to use the taper attachment) and attached a block to the end of the cross slide. You'll need to machine clearance in the cross slide for the ballscew nut, and you'll probably need to widen/deepen the screw alleyway in the cross slide as well.

[jshank]

Thank you for the step file of the X-axis attachment. This is extremely helpful and very kind of you.
Would provide me with the step files for the motor, pulley, and ball support mounts?
Thank you

[jshank]

Do you prefer the Oak board as to the Allin1dc as with the Oak you can use ac servos?

[tblough]

I'm using Oak and ABB AC servos and drives. TheAllIn1DC and DC drives work just as well. I have those on my mill.