I have converted a small 8x12 lathe by adding steppers with G202's and new ball screws on the X and Y.The spindle has a Nema 34 DC Brushed Servo from HomeShopCNC with a G320.
Bob Campbell breakout board and a Sound Logic Encoder board. E2 500 count encoders on all axis. Differential converters on the encoder lines to keep noise down.
X and y work fine. C index's fine. 11.11111 Steps per gives me 360 deg's on the DRO. Seems that might be a bit low of a number but it seems to work.
Now I set up the Spindle as a spindle and I believe I need to change the Steps per. so that 1 number of the dro is a full 360. To get that I have a Steps per of 4000. Now I am running at 45khz and that gives me a max limit of 675 In's per Min. Somewhere I read that 50 In per min was 3000 rpm. I am just not getting close to that If I set my spindle speed to 1000 I only get around 75 rpm. Haven't broke out the tach yet to check but its way to slow.
On ports and pins there is 4 encoders settings. I assume that's X,Y,Z,A. I just put the pin numbers in for the C axis in the 4th slot. Now where do I put the encoder information for the spindle? I am not getting any spindle feedback on the screen.
While on the subject of encoders. Is there a lathe screen that has X,Z,C with a spot for encoder feedback. I found a Mill screen that has XYZA but I need this for the lathe.
I'm not using The Sound Logic Dll because its not working for me. Want to get these other things addressed first. One small step at a time to keep it simple.
I have went through the manual but have not found or if I did find understand the info about the above questions. I also searched the forum with little success.
Donny