Fanuc 3M DNC upgrades can be had from fanuc3mdripfeed.com which is a website dedicated to upgrading these old controllers. For more modern controls DNC is standard stuff, but the 3M control needs its EPROM chipsets replaced to acquire DNC. It takes about 20 minutes!
Not only do you get DNC, but the upgrade also deals with the other failings of the old 3M control: minimal memory, only 2 1/2 axis interpolation and original control EPROMs that start to bomb out after about 20 years (causing data scrambling, machine crashes and mother board failures) making control chip replacement an absolute must!
If you have an old Fanuc 3M check them out (fanuc3mdripfeed.com) and if you're willing to email them a file with your parameters and diagnostics data you get the whole chipset at half price (US$370 at time of writing this post).
Good luck! |