# Turn table.

Hi I am trying setup a turntable to film small things rotating like a bottle of soda or a lemon

That's good to know. Sounds like a fun project.

Is there a problem that you would like some help with?

...R

oh sorry i thought i had pasted my question in.. it has to do with power all i need it to do is 360-720 degree turn.
I have a nema 17 Arduino and a a4988 stepper.. i don't need alot of tork can a 9 volt work? i don't wan to used a meanwell power supply. Can i used the adjustable multi voltage power bricks?
Thanks

I suggest that 12v should be your minimum.

Please post a link to the datasheet for your stepper motor. There are hundreds of different Nema 17 motors.

…R

Describe the mechanical setup, we have no idea what you are describing unless you give facts figures
and perhaps drawings. "small things" could mean 1mm, 100mm, 500mm, I've no idea what's in your
head when adjectives are used instead of measurements. I gave up trying to guess as one person's
"small" is anothers "large"...

Describe the mechanical setup, we have no idea what you are describing unless you give facts figures
and perhaps drawings. "small things" could mean 1mm, 100mm, 500mm, I've no idea what's in your
head when adjectives are used instead of measurements. I gave up trying to guess as one person's
"small" is anothers "large"...

Here was the origin post..

“Hi I am trying setup a turntable to film small things rotating like a bottle of soda or a lemon”

The soda is 12 oz.

Here are some picture of the motor and soda to help clarify question concerning size if it will help I can send a picture of a lemon

https://1drv.ms/u/s!AgogfH6zXqannnn5FTH8Qjf6Nubl

https://1drv.ms/u/s!AgogfH6zXqannnpkCOsAp8IFJdrv

TommyGunn:

Describe the mechanical setup, we have no idea what you are describing unless you give facts figures
and perhaps drawings. "small things" could mean 1mm, 100mm, 500mm, I've no idea what's in your
head when adjectives are used instead of measurements. I gave up trying to guess as one person's
"small" is anothers "large"...

Here was the origin post..

“Hi I am trying setup a turntable to film small things rotating like a bottle of soda or a lemon”

The soda is 12 oz.

Here are some picture of the motor and soda to help clarify question concerning size if it will help I can send a picture of a lemon

https://1drv.ms/u/s!AgogfH6zXqannnn5FTH8Qjf6Nubl

https://1drv.ms/u/s!AgogfH6zXqannnpkCOsAp8IFJdrv

A 12 oz soda can is 12 oz by volume, not weight. Will your table move continuously or move in steps and then completely stop for the photo? Do you need to sync the movement with the camera shutter?
Paul

So about 10cm diameter, direct drive from the stepper? Sounds reasonable, I think the torques will be
well within the abilities of the motor bearings and for the motor itself if the masses are 1kg or less.

Use microstepping and a proper stepper driver such as a DRV8825 module, and AccelStepper library.

Small 9V batteries will not power motors (well not for long, and definitely not a stepper).

A 12V supply of 1A should be enough for a single NEMA17 stepper. If you wanted higher speeds
I might have suggested 24V, but I don't think you want rapid spinning.

Yes I want a slow spin would nice to adjust speed with a pot. But does not need to control shutter. I will be filming at 120 frames per second and 240 FPS.

I just ordered a dc power connector... so I can plug in a power supply.
I found this diagram but I guess I will look for one with a variable speed unless one of you kind folks happen to know of one with code?

Thanks again.

The speed of a stepper motor is always controlled by your software.
Paul

TommyGunn:
I found this diagram but I guess I will look for one with a variable speed unless one of you kind folks happen to know of one with code?

If you look at the AccelStepper library docs you'll see there's a call to set the speed,
setMaxSpeed(), so you have complete control.

Microstepping will be important to avoid noise and vibration, so you'll need to read about
the microstepping inputs for the stepper driver, M0/M1/M2 pins.

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