Brian, what are the advantages of using these more expensive drives.
Why not just Gecko or Rutex drives?
The drive specs for the Tek 10's are practically identical to the less expensive
counterparts. The gecko's are big enough to drive any Bridgeport knee
mill that was made, of course providing the servo is a proper match to
the Gecko.
Scott
Not Brian I know, but have some experience of both Gecko G3x0 drives and the Tek10 drives. The latter are much more spohisticated. They have all 3 PID terms available for adjustment, alterable following error trip point, and differential encoder inputs.
The Gecko's I have used with some success right from the earliest ones, but put a high count encoder >500ppr and they can be almost impossible to keep out of a fault state! The +- 128 count tip can be a little tight. I last tried them with 2500 ppr encoders on my hardinge, it was impossible at near 80v. The Tek10 drives have been easy to setup.
Rutex seem to have similar specs but I heard support can be hard to pin down, and I've heard of more than a few blowing up.
For the SEM motors on these older Brdgeports I do think the TEK20 is still not man enough with it's lower current rating. Those motors can draw serious current.
Might be better off with TEK10's at full power (25A) with a lower voltage (slower) than loose to much torque at the 15A available on the TEK20's I just noticed Teknix do not even list the TEK20's on their website now!
Wayne....
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