Okuma lathe conversion.

Thamks Andy, Yes I have that manual. I think figuring the encoders might be beyond my skill level. At this point I am going to look for replacement servos. I might already have some drives that could work. Just bought a 15hp vfd for the spindle.

You might try posting on the practical machinist forum - more people with okuma experience there.

Chris M

Hi, I have been tearing into the lathe a bit, ordering parts and waiting on the mail. I have already won an auction on an opto22 board that now looks unusable!
(Dumbass!)
I took the encoder cover off the x axis and removed the encoder. The shaft is tapered and keyed with an m5 bolt holding the encoder shaft on. I then dismantled the encoder to the point where I have a 25mm shaft that I can bolt on to the motor shaft. So now I am looking for an encoder that I can use with the mesa boards I have ordered (5i25 7i77) that can slip over a 25mm shaft or directly on to the taper. There is about 18mm 0f tapered shaft , 18mm on the big end, 13.5 on the small end. 1:4 ??
I am looking for some help finding an encoder, can't seem to find one.
Thanks, Paul

Also, is this going to work for me?
www.ncix.com/detail/gigabyte-motherboard...-j1900-1a-109314.htm
Do most people mount computer in the cabinet behind the machine and run long cables to front lcd, switches , usb etc ? or is there a better option?
Thanks!

Thankyou Andy, i hadnt thought of belt drive, but i guess it is another option. Mesa stuff should be here soon so i will have to figure connections out with what i have.
Can't use the original encoder as it is now in pieces.

Any thoughts on the computer?

paul

Thanks Andy, so now i am looking for 2 encoders with a hollow shaft of either 10mm, 25mm or tapered. With commutation. Absolute and differential right?

Went ahead and ordered the motherboard, i think it will be ok.

Paul

Thanks Andy, I had looked at those encoders, I thinks I will order one and see if I can adapt it to a 10mm shaft. am I going to need the demo board?

Paul