insalling spindle encoder in 1J head

[jmelson]

Hey,

I just figured out how to install a spindle encoder on a Bridgeport 1J head. I made a web page at
http://pico-systems.com/bridge_spindle.html
with some pictures and description. Now I can do rigid tapping on it!

Jon

[79TigerPilot]

John,
I recently did the same thing on my J-head. Those sensors work very well, just watch out for vibration caused by the magnet pulling on the teeth, you don't want the bracket to fracture inside the gear housing.

I epoxied my sensor in a plastic housing that mounts in a recess I milled with a wood router. Since I am using Mach3, I had to divide the sensor output by 81 with a little Atmel uP to get the 1 PPR that mach needs. Will have to think about quadatrue for the future.

Craig

Some pictures

http://picasaweb.google.com/cschafft...20847739556546

http://picasaweb.google.com/cschafft...03095682315170

http://picasaweb.google.com/cschafft...73728040270130