I’m thinking of making one monster servo to test it out. I want a motor with a lot of torque and speed. I am eying this one (but open to other possibilities). I need a high torque, low speed (as low as possible) and ~6 vdc, which limits my choices.
Motor : banebots.com/pc/MP-24XXX-370/MP-24036-370
Specs :
Gearmotor Specifications
Physical
Type : Planetary
Reduction : 36:1
Stages : 3
Gear Material : All Metal
Weight (Gearbox only) : 2 oz (57g)
Weight (with motor) : 3.5 oz (100g)
Length (Gearbox only) : 1.4 in (36mm)
Length (with motor) : 2.6 in (67mm)
Width (Sqaure) : 1 in (25mm)
Shaft Diameter : 0.25 in (6mm)
Shaft Length : 1 in (25mm)
Shaft Thread 1/4-20 Left-Hand
Shaft End Tap : #4-40
Mounting Holes (12) : #4-40
Calculated Performance*
Motor : RF-370 (Pinion)
Operating v : 4.5v - 9.6v
Nominal v : 7.2v
No Load RPM : 444
No Load A : 0.3A
Stall Current : 9.7A
Stall Torque : 206 oz-in 1455 mN-m
Kt : 21.2 oz-in/A 150 mN-m/A
Kv : 62 rpm/v
I would operate the motor at 6 vdc, thus lowering proportionaly the current to ~8.08A, ~372 RPM (free) and ~171.3 oz.in.
Now, to control this with a pot I would need this servo controller (lynxmotion.com/Product.aspx? … egoryID=52) which can only pass 4.8 amps max.
So my questions :
Could I use two of these motor controllers in parrallel to pass more current (2x4.8=9.6A) @ maximum?
I guess the SSC-32 couldn’t pass that much current (the 5990 passes 5.2A at stall @ 7.2 V), so, Would it be better to take off power and ground and connect them directly to the battery?
Thanks for the information!