I"ve got a YCN2GS Supermax mill from the 80"s. It"s a heavy mill (around 6000 lbs) made in Taiwan. It has square ways for rigidity, and both a horizontal and vertical spindle. The horizontal spindle has several definite speeds set with a dial, and the vertical is infinitely variable speed using spring loaded pullies, and a high and low range. The table on mine is 51 x 11 inches, but how much of it is actually usable for travel I really don"t know because I haven"t run it all the way both ways and measured it yet. Power wise both the spindles have 5 HP, 3 phase motors, so it will take some nice heavy cuts if you need it to. The nice thing is that all feeds are powered, (knee up and down, table left and right, and the carriage front to back. The knee is a fixed speed but the two other feeds can be set to one of about 6 different travel rates (one dial with a high and low range lever). Too, regardless of which feed is engaged there is also a "fast feed" lever that over rides the set speed and really moves the function in the direction you have it running. Too the way it"s driven there are sheer pins for each function/direction just in case you screw up and feed too hard, over travel it, so the inner gear train doesn"t get damaged. Too the hand wheels are designed to so they can be free wheeled so you don't get hit by one when feeding, and the large handle for the knee is the same except it actually has a switch that won't allow the knee to move under power if the handle is engaged. It also has a built in coolant reservoir and pump. The table is then designed in such a way that the coolant flows to the outer edges, and doen through the back of the carriage, back into the base. All of the feed controls, switches, etc are place in a box and readily/easily accessible to the operator, on the right hand side of the carriage.
I"ve had mine for over a year and I absolutely love it. I ran Dad"s Series 2, variable speed, Bridgeport with a 9x48 table, for a lot of years and it"s a heck of a machine. Still this Supermax has it beat ten ways to Sunday in my opinion. Price wise I got mine through a State Surplus for one heck of a steal, but market price on them is around $6000 to $8000. Good luck.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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