ArmSizer Pro

Limits of this arm

same math as size it, servo weights as you entered them

got one already? pin it here. other joints can use anything in the list

tries every servo × ratio at each joint, counts each servo's weight on the joints above it, uses checked prices only. base rotation not included

#	Build	Servos (shoulder first)	Cost	Servo mass	Smallest margin

grab a joint and drag it around (or tab to it and use the arrow keys)

reachable area colour by

kg·cm at the joint, worst case = arm straight out. The orange required mark must sit left of the blue servo max (through any reduction).

gravityaccelerationrequired (with safety factor)servo max (stall)at current pose

Joint	Servo	Stall	@ V	Required (with SF)	Margin	I stall	Mass	Drive	Alternatives	Source
		kg·cm	V	kg·cm	×	A	g	ratio

reduction: servo torque = joint torque ÷ (ratio × efficiency); servo turns ratio × joint angle

Qty	Servo	Store	Unit price	Line	Checked