Hey all,
I am Installing a new motor on my mill and it doesn't have an encoder like my BLDC did so I am making a single slot disk and using an optical sensor to read the single pulse per revolution. I have done alot of research but haven't found hard data on the slot size itself.
Can anyone guide me on the slot size? I have read it should be painted flat black to avoid reflection issues so I will paint it flat black. The disk diameter is 2.9" and .1000" thick which gives it clearance but still fills the gap of the optical sensor about ~80%. Any information on those who are running succesfully the single slot setup and their disk dimensions is greatly appreciated. Trying to do this once the right way..
I attached a screenshot of the disk with dimensions.. Tying to cut this today to move forward with installing the new motor so any guidance is greatly appreciated!
Chris
![](https://uploads.tapatalk-cdn.com/20151228/04f1bb31dab400a9f44f3e5d91e44dec.jpg)
![](https://uploads.tapatalk-cdn.com/20151228/5a9eeca32e8107d093d7dd91db676076.jpg)
Sent from my XT1080 using Tapatalk