Oleks
Thu 06 March 2008, 06:19
It happens I've got servodrivers (http://www.granitedevices.fi/index.php?id=8)(24-200V, 1-12A capable to turn DC, BLDC, AC no hall sensors needed) and now looking for suitable gear + motor (and prices :)) combinations. After many days searching web sites with open prices and worldwide delivery not much was found: BLWS233S-36V-4000 NEMA23 36V 100oz*in-peak 15A (http://www.anaheimautomation.com/BLWSHPG23_Series_Brushless_DC_Planetary_Gearmotors .aspx) (actually here (http://www.anaheimautomation.com/manuals/L010229%20-%20BLWS23%20Series%20Product%20Sheet.pdf)) with 1:10 gearbox (backlash <12 arc-minutes) will give some 750 oz*in output. Is it enough 90W motor to move (and accelerate) 75kg gantry to 0,38 m/s (with smallest pinion)? They have another - 180W motor, but at 22A (wired delta) - exceeds the driver's limit. Could wiring it star make it suitable?
Other big question - what maximum backlash may have whole driving mechanism with servo control based on rotary encoder? They have 400W motors with spur (http://www.anaheimautomation.com/BLYSG34_Series_Brushless_DC_Spur_Gear_Motor.aspx)g ears.
I just wonder if stepper gearmotors for $280 exist then good enough servo + gearbox under $400 also... It's so pity guys from China like to be mailed with inquiry, so lot writing awaits.:( May be somebody already knows the place?
Other big question - what maximum backlash may have whole driving mechanism with servo control based on rotary encoder? They have 400W motors with spur (http://www.anaheimautomation.com/BLYSG34_Series_Brushless_DC_Spur_Gear_Motor.aspx)g ears.
I just wonder if stepper gearmotors for $280 exist then good enough servo + gearbox under $400 also... It's so pity guys from China like to be mailed with inquiry, so lot writing awaits.:( May be somebody already knows the place?