Artist in need of help

[dmhmaestro]

I can't tell you what motor to buy, since you haven't told us whether this sculpture of yours is a 5 ton piece of stone on a 2-meter turntable or a 2 gram piece of foam on a 5 cm disc. The torque required from the motor is going to be different in these two circumstances, and the price of the former will be considerably higher than the latter.

Andrew Werby
www.computersculpture.com

In the first post i told it... just like on picture there is stick and magnet on one side and counterweight on other... thats practically all the force and weight the motor will handle

[dmhmaestro]

Guys please dont leave me... help me. ive been wandering with this question for a few months now...

[awerby]

You haven't given us much to go on. Without the engineering calculations it's not possible to accurately specify the correct motor for you. If you want to guess at it, get a relatively cheap one, and if that doesn't work, get a stronger one.

[dmhmaestro]

it will literally have no friction or weight... i told already.

just need it to be precise at speed and rpm... what would u recommend specifically ... ? thanks!

[Mjolinor]

so what we have, its a stick, its a magnet, it has to spin.

That is not sufficient information for anyone to help you.

How much does the magnet weigh
How fast does it have to spin
How long is the stick
How accurate does the spin rate need to be
How fast does it need to get to that spin rate
How long does it have to take to stop when you turn it off.

Just a few of the questions that have to be answered before anyone can make any suggestions.

[dmhmaestro]

so what we have, its a stick, its a magnet, it has to spin.

That is not sufficient information for anyone to help you.

How much does the magnet weigh
How fast does it have to spin
How long is the stick
How accurate does the spin rate need to be
How fast does it need to get to that spin rate
How long does it have to take to stop when you turn it off.

Just a few of the questions that have to be answered before anyone can make any suggestions.

Ok... here it is

How much does the magnet weigh... Dont know because i couldnt weight it on the scale because its magnet... its farely light
How fast does it have to spin... slow... from i would say 50-80 rpm or so
How long is the stick... about 15 cm
How accurate does the spin rate need to be... VERY!
How fast does it need to get to that spin rate... not fast... its installation so its would be on for some time
How long does it have to take to stop when you turn it off.... not important

[Mjolinor]

You will have to use a geared DC (or AC) motor to get the accurate velocity that you need, a stepper will not do it.

50 to 80 rpm is very achievable with even the cheapest geared motor.

[dmhmaestro]

You will have to use a geared DC (or AC) motor to get the accurate velocity that you need, a stepper will not do it.

50 to 80 rpm is very achievable with even the cheapest geared motor.

could u please post some link preferably on ebay for me?

so i know exactly what am i doing... the one that help me will be mentioned when my sculpture becomes famous! hihih

[welwell]

https://www.youtube.com/watch?v=dkkPNMEuXl4

Under the video click "show more" for ordering information

Regards,
Bill

[dmhmaestro]

https://www.youtube.com/watch?v=dkkPNMEuXl4

Under the video click "show more" for ordering information

Regards,
Bill

OOO im so turned on now! Thats the thing i need

one thing, i would like it to be on wall outlet... what should i do different than?