Hey all,
New to the board... really, really glad I found it. You all seem very helpful, which is really good because I am sure I will have tons of questions as my project starts to take shape. I recently aquired a bpt series 2 mill from my job, it took a little ass kissing to the right people but I ended up "aquiring" that and a sheldon lathe for free.... (way better than christmas). So being that I was lucky enough to get these machines for free, I figured I would sink some money into the mill and make it cnc. So now I am in the process of aquiring parts (on a very tight budget, surplus this... ebay that). I found a great deal on some DC brush motors to run the axis' that have provisions for encoders on the back. The shaft is .187 dia. and they have 2 holes on 1.812 dia. (pretty std from what I can tell). I have a lead on some renco encoders with a .25 bore which I think I can make work with a bushing, but I don't know if they will work with the Gecko drives I plan to use. Here is the description:
1000 count A and B channel only, no reference mark, 1/4" hub size, Line driver output. have a special short cable with pins for a connector body, looks like AMP. Closed cover, glass disk 0.060" thick
Part number is: RM21B3-1000-1/4-5-CS-LD-C-G6-S
These are up on ebay, the guy seems to have a ton of them.
My concern is the "line driver output" what does this mean? are they TTL compatible like the Gecko instructions ask for? A guy at work mentioned using a step up resistor, what exactly does this do and why would you need it?
Renco's site shows this option or VC or VO. Can somebody please explain the difference to me?
Thanks a lot in advance for any help. Take care, Pete