- #1
ABHIdAVIATOR
- 22
- 0
hi,
I'm doing an experiment, in realisation of which i need to move a steel plate up and down. Please consider the following constraints faced by me:
-The plate would rise to 12mm at most.
-The speed should be such that it rises 12mm in around half a second.
-I want to be able to stop the plate anywhere between 0-12mm.
-Variation of the speed may also be needed.
-The plate will be exposed to high pressurefield above, so will tend to come down.
-I have only 75mm(L)*175mm(W)*25mm(H) space to accommodate the lifting mechanism.
-I can also mount the motor outside the above mentioned cavity, but the motor diameter less than 30mm is preferred.
After considering all the above mentioned constraints, I've thought of getting a miniature rack and pinion system manufactured. But the driving motor is still not finalized and I'm facing a problem in it. Initially i thought of using a geared dc motor but then i won't be able to stop it at the precise positions (4mm say). Servos can definitely be used but the speed control is a problem.
Stepper motor seems a good choice but i haven't got much experience working with them.
So, please help me choose a good motor or a new mechanism.
Thank you in anticipation.
Abhishek.
I'm doing an experiment, in realisation of which i need to move a steel plate up and down. Please consider the following constraints faced by me:
-The plate would rise to 12mm at most.
-The speed should be such that it rises 12mm in around half a second.
-I want to be able to stop the plate anywhere between 0-12mm.
-Variation of the speed may also be needed.
-The plate will be exposed to high pressurefield above, so will tend to come down.
-I have only 75mm(L)*175mm(W)*25mm(H) space to accommodate the lifting mechanism.
-I can also mount the motor outside the above mentioned cavity, but the motor diameter less than 30mm is preferred.
After considering all the above mentioned constraints, I've thought of getting a miniature rack and pinion system manufactured. But the driving motor is still not finalized and I'm facing a problem in it. Initially i thought of using a geared dc motor but then i won't be able to stop it at the precise positions (4mm say). Servos can definitely be used but the speed control is a problem.
Stepper motor seems a good choice but i haven't got much experience working with them.
So, please help me choose a good motor or a new mechanism.
Thank you in anticipation.
Abhishek.