My opinion is that if you must use a stepper, then you definitely need to use a ball-screw/nut with closed loop position monitoring. Plus a counterweight or break to prevent your mechanism from stalling when it's not energized.Hi,
The weight will be exactly 5 kg. The column will be of diameter 2 inch and it will be a hollow column. I would like to use rack and pinion mechanism. But i don't know what radius of the rack will be more efficient. My aim is to move the column up and down using this rack and pinion system in a speed of 1cm/sec. I prefer to use a stepper motor to drive this system. Any suggestions will be helpful.
Thanks
A rack and pinion vertically mounted to lift a weight? I would not recommend that. Can you change the design?Hi,
This is thee first time i am using a mechanical design. I would be using Rack and Pinion to drive the system.
This would be based on the break-away torque figure on the input shaft/device.One thing that hasn't been mentioned in this thread is load holding. Does the 5KG load have to stop and stay at a certain level?
by Jake Hertz
by Jake Hertz
by Jake Hertz