how to convert a mill to cnc?

[speedhound]

Thanks for replys, it doesnt have ballscrews which is why i was concerned about backlash but hopefully backlash compensation would help out with that. 8nm is interesting, this is the kind of thing i need to know as i dont know what motors to use. I understand that the motors are rated on holding torque. What size motors do you think i would get away with(would i need 12nm), i dont mind if its a bit slow but want it to be useable, so i could gear it down 2:1 or something but i dont know how fast it would be.

Thanks

[Robin Hewitt]

Are you sure that leaving 1.5Nm of torque eating gunge in the slideway so that the table will hold position for your backlash correction is the best way to go? Surely it is eating the nut

[Andre]

I assume you will need a central lubrication system to keep everything running and then you will have possibly less then 1,5NM on the slideways .
If you set it at intervals of 20 min and lasting approximately 10 sec on each slideway.
Kind regards,
Andre.

Experience is the sum of stupidities you have done.

[speedhound]

I dont think that it is gunge causing the 1.5nm of torque, its just a very heavy table, and that is the torque that is needed to get the table moving. Im not planning to use it loads, but keeping it well oiled like you say should help with the friction.

Thanks