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Motors, gear boxes and pulleys, OH MY! Answered

We are making a time lapse dolley with an arduino. We need to move a 5 lb camera across a metal frame smoothly to produce a great shot. How can we do this?

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ladymechanika
ladymechanika

7 years ago

How would I program this on the arduino? Any ideas for the actual coding?

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steveastrouk
steveastrouk

Reply 7 years ago

You need something to SET the speed, and the arduino to interpret that and generate the pulses. Are you intending to power the trolley with a powered wheel, or a belt ?

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steveastrouk
steveastrouk

7 years ago

What power have you got ?

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ladymechanika
ladymechanika

Reply 7 years ago

Its undecided so far but it has to be portable. Therefore, we were thinking battery powered

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steveastrouk
steveastrouk

Reply 7 years ago

How "slowly "do you want ?

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hthnc-student
hthnc-student

Reply 7 years ago

the dolly works by a motor pulley system moving a camera back and forth on a track thats approximately one yard long. We need to be able to control it to the second with a vary broad range. For example the camera may need to move across the track in 30 seconds or it could need to move across the track in three hours. we have played around with the idea of a step motor but I don't know if it can give us enough control.

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steveastrouk
steveastrouk

Reply 7 years ago

A MICROstepped stepper motor would be ideal.

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hthnc-student
hthnc-student

Reply 7 years ago

do you know of any good sites to find one of these?

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steveastrouk
steveastrouk

Reply 7 years ago

You need a driver - take a look at EBay, and then an Arduino to generate a pulse at an appropriate rate.

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ladymechanika
ladymechanika

Reply 7 years ago

will this driver work http://www.ecrater.com/p/12583801/cnc-stepper-motor-driver-2m542?gps=1

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steveastrouk
steveastrouk

Reply 7 years ago

Yes that's a very popular motor driver. You can try hunting around for a cheaper supplier, but that's not bad.

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ladymechanika
ladymechanika

Reply 7 years ago

have you seen anything under $50?

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ladymechanika
ladymechanika

Reply 7 years ago

will it connect to any step motor or do we need a specific kind

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steveastrouk
steveastrouk

Reply 7 years ago

Its big enough, and asjustable enough to handle most motors you are likely to use.

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hthnc-student
hthnc-student

Reply 7 years ago

will the driver work on any step motor or is their a specific kind