Gene, This probably doesn't apply to your situation but when I made the encoder wheel for my jet 9x20 lathe (the disc was made from one of those non-functional plastic discs they include in a spindle of dvds or cds fortunately this one was black)I did the following:
Mount all the interrupters on a piece of pc board which is superglued to a little bracket made of aluminum flashing bent till the interrupter is straddling the disc and the bracket has a 90 degree "foot" which would sit nicely on the cast iron frame of the spindle housing if there was some way to attach it. Take a 3/8 diameter super magnet and put it on the foot. It will hold the aluminum bracket nicely in place for tweeking. You can now move the spindle and watch the interrupters on the scope or with the halscope and tweek them till the duty cycle and quadrature is good enough and the index is happpening only once per cycle. When you are happy apply a drop of super glue between the foot and the frame and wait till it sets up. When it is set then drill and tap the foot for a 6-32 screw and snug it up. Believe it or not it takes about the same amount of time to do it as it takes to describe it. No math needed. Just put 'em where they need to be and nail 'em down. Cecil ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
