I'm seriously considering buying a Tormac 1100 but I need help!
I'm a novice machinist but I am an engineer so I looked through Tormach's posted certificate of inspection carefully.
First of all I congratulate Tormach for posting this online as well as a wealth of other informative material. The problem is that no one else does so I don't have anything to compare it to!
Three things bother me somewhat.
First, the spindle runout spec is .o3 mm at 100mm or 1.2 mills at 4".
The runout spec for my Jet manual mill is 0.8 mills at 12" and my machine measures about 0.5 mills.
The next two questions regard the test block. It looks like they mill out a 6" by 2" block on one of every 20 machines in a batch.
The 'b' spec. parallelism of the top of the block to the bottom is .06mm or 2.4 mills. This doesn't seem very good. Am I wrong?
The 'c' spec. is the perpendicularity of one side to the top and to the other side. This is .06mm over 50mm or 2.4 mills over 2". Again, this seems kind of loose.
How does this compare with the expected performance of a more expensive machine like a Haas?
My eternal gratitude for any feedback from some of you old pro's out there!