Hello good people,
I`m a student and designing my own little hf VMC (milling SMALL volume alu).
On http://www.sureservo.com/default.htm i saw some nice servo`s that will fit my machine, i think.
My machine has a gantry off 20 Kg and a working area off 500 by 350 mm.
The servo`s off 200 watt (0,8Nm continuous duty / 1,9 Nm peak ) are my objective.
There is only one thing, i want to use a ballscrew with a lead off 5mm/turn,
so 200rpm = 1000mm/min and 400rpm = 2000mm/min (this is my working area )
Maybe for rapids a bit more, since there is almost no weight and a
Massive / solid 150 Kg frame.
3000 rpm (rated rpm) =15000mm/min ......... i know this is impossible
But will the servo`s work on the rpm off 200 to 400?
i dont want to gear because off the backlash (out off the question)
gearboxes with no backlash i cant afford.
Servo`s have a constant torque, right
power is only torque * 2 pi n
It is overdone because off the range till 3000rpm, but no lost steps and a dynamic system is a pro. the servo`s have 10.000 ppr encoders.
Cann somebody give me advice and tell the PRO`s and CON`s ?!?!?!
Kind regards and keep up the good work guys,
Roy Bakker
the Netherlands.