Help to choose the motor

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potter3366
 
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Joined: Thu Dec 11, 2008 3:32 pm

Help to choose the motor

Post by potter3366 »

Here you can see how my new project looks roughly (please download the file first and then open it):

https://dl.dropboxusercontent.com/u/70391886/box.mp4

The basic idea is to replace the deck with one another deck with rotational mechanism.

Please see the attached pictures. They are the side and front views of my design.
R1 = Distance from the center point to the edge of Cradle
R2 = Distance from the center point to the edge of Platform
Center point of R1 and R2 should be same.
Thickness of gap = R2-R1

I have to use a timing pulley on the motor and one on the deck shaft, connect these two with matching timing belt.

Requirements for the motor:

constant speed
really accurate (200 steps/rev or 400 steps/rev)
very quiet
powerful enough (Holding Torque)

Do you think that Nema 17 and Adafruit Motor Shield V2 are the good choice??
The "cradle" will most likely be made ​​of wood or metal..

Image
Image
Last edited by potter3366 on Sat Sep 06, 2014 12:58 pm, edited 1 time in total.

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Franklin97355
 
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Re: Help to choose the motor

Post by Franklin97355 »

Perhaps something like this? https://www.youtube.com/watch?v=7Sbe3wM4oms

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potter3366
 
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Re: Help to choose the motor

Post by potter3366 »

The first impression is that the gear motor is a little too loud. Does these motors are precise enough?
The first and second revolution (2x180 degrees) should be activated with some sort of sensor on arduino..

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adafruit_support_bill
 
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Re: Help to choose the motor

Post by adafruit_support_bill »

Assuming reasonably smooth bearings and a reasonably balanced assembly, I would expect that the #324 NEMA 17 motor and motor shield should handle it just fine.

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