Spindle index

that sounds good and for what it costs I would definately take a chance in making one up, even if it did not work. I see my old post said 60 slot, this was actually changed to 45 due to space limitations. should not be a problem though?? The one you linked from Ebay is exactly what i have got. on the single index slot it works a charm, mut on the 45 i dont think it can read fast enough.

i am running the sensors with an external 5v power supply, not from the pc motherboard like i have read some do. on the D0 pin with a multimeter i am getting just over 8V. not sure if this is correct. i will try swapping the two boards over in case i have a genuinely poked board. i will post my results after lunch. this is the only thing holding up an otherwise excellent build that i have thoroughly enjoyed. but this is making me loose even more hair!!

aaargh.....light bulb. thats what is so great about this forum. this was the same issue i had with this board to start. the cinesse manual mentioned nothing about connecting a usb cable to the board, just a 24v one. when i connected the usb cable, the board sprang to life. i will try this this afternoon and fingers crossed

right, just got +5v and 0v from BOB - same as before, rpm gets to 275rpm then drops to 0. i was reading about a filer on the rpm??

A phase on hal scope is flat line. Index is multiple square lines (good). I was doing some other digging on hal meter. spindle-cmd-rps gives a negative number and spindle-cmd-rps-abs gives a positive. my spindle-position is increasing which is good. spindle-velocity-feedback-rps says 4.53..... but rpm says 275. Is any of this making sense? I have a digital multi meter, the hal meter and hal scope. basic knowledge of wiring but not electronics. thanks so far for putting up with my my questions