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In Reply to: Not mine posted by Mark Kelly on September 18, 2006 at 23:38:03:
I believe it is a tight fit pressed on piece. I would not think that Pabst would make different motors for the same purpose. They would just press on the fittings they need to do the work.Actually this might have been a Rek O Kut piece pressed onto the motor shaft.
Just for grins, can you inspect your Empire Pabst motor to see if it uses the exact same pulley?
I was hoping to have my brother in law machine a pulley for a thread drive that would provide more positive thread alignment.
Follow Ups:
Yes I have inspected it and yes it is certainly all one piece.I do think Papst made motors to OEM specification, that is, after all, their business. The same holds today - Maxon will make any motor configuration you want as long as you want 10,000 of them.
Yes, and we will most likely press new pulleys over the machined part. My thoughts are to make a simple nylon collar that presses over the shaft with the pulley extended beyond where it is currently located. This would make for a longer shaft that is more like the Empire's, but suitable for string.
Otherwise it would be my design and it might or might not be successful ;-)
but IIRC correctly, the ROK motor has its own external housing and is larger and heavier than the Empire (pictured)The spindle is pressed onto the motor shaft as one piece on both motors; the Empire has 331/3 /45/78 steps
I'm 99% sure these wouldn't interchange from one T/T to the other, tho' these are from the same era and maker so indeed, v. similar designs
Grins
No. The ones that we are using are identical, except for the shaft. The color and the top plate are different, but we are indeed talking about the same motor. The Rek-O-Kut and Empire are strikingly similar in mechanical features. This makes the more ugly Rek-O-Kut ideal for a ground-up DIY.
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