Reading Digital caliper with Arduino

[Vinny]

Welcome to the forum, Animal. I think the post above yours was the end of that one.

I've been kicking around the idea of using a rotary encoder for a dro on my mill. I saw a mention somewhere where a guy used a belt with a rotary encoder on his mill and said it worked well. Unfortunately he didn't elaborate but someone else chimed in with some calculations that showed the LPD3806-1000M encoder could get you 0.0001 accuracy but he wasn't using a belt. Just for proof of concept I picked up a 400M to try, but before the belt and pulleys showed up I ended up using the encoder on another project - so I have to order another one (hopefully the belt and pulleys won't get used before it gets here!)