I havent posted in a while because my last project got lost in my curiosity for bipeds. Anyways, I am looking into building a biped that uses linear actuators instead of servos. After searching I keep coming back to either SPAL linear actuators or the servo city ones due to cost, speed and force.
Stroke 300 mm (11.81")
Voltage 12 DC
Dynamic 107 lbs. max
Static 500 lbs. max
No Load 0.59 in/sec
Max Load 0.39 in/sec
No Load 0.6
Full Load 3.4
Pin Holes 5/16"
Retracted Length 450 mm (17.72")
Shaft Dia. 20 mm (0.787")
Size 18-1/4" x 1-1/2" x 3"
Shpg. 5 lbs.
Operating Voltage: 6.0-12 Volts DC
Operating Temperature Range: -20 to +60 Degree C
Operating Speed (12V): 2.00” second at max load
Dynamic Thrust (12V): 25 lbs. Thrust
Static Load: 500 lbs.
Current Drain (12V): 500mah no load operating
Motor Type: 3 Pole Ferrite
Gear Type: 4 Metal Gears
Connector Wire Length: 24"
Recommended Fuse: 10amp inline
IP Grade: 2IP 63-total dust protection, water resistant
I cant seem to find any projects at all utilizing either of these and I was wondering why? Is there something im missing? The spal ones seem to be a little slow and the SC seem on the weak side but does anyone know if these can be theoretically accurate enough to be used in a larger biped? ( I think SC has better speed/force options in the making)
I think maybe a large arm project using either would be a safe/easier project to learn from to get the electronics etc figured out? Would really like to hear your opinions on these!