Build a Speed-Controlled Electric Motor for DC/Battery Operated 3D Scanning Board in Photogrammetry

Hello

I need help building a speed-controlled engine.
For the sake of clarity, I don't know it completely. I'm dealing with 3D graphics, I need it to rotate a round 3D scanning board.

The use of such a solution allows me to greatly reduce the time it takes to scan an object. I am talking about photogrammetry.
It is best if such a motor could be connected to DC and battery.

Then the engine rotates the board, and instead of taking many pictures, I record the object with the camera, then process the material to get, e.g. every 20 frames. Normally, taking pictures of such an object takes a lot of time and is tiring.
I came up with the idea of automating the process, but I don't know much about electronics.

Please help and links to buy parts.

Regards,
Kamil.

Only stepper motors but what weight scale are these objects?

Basically, if you don't know, you have cash. The engine you do not just buy enough ordinary, speed regulators now cheap. The matter of the weight of the tray and the speed it is supposed to get.

Maybe an ordinary screwdriver would be a part donor. There is a gear motor and a speed controller.

Jump angle, repeatability requires precision and hence $$$

How big is the object to be rotated?
If the item has a volume of several liters, then maybe it is enough:
- 12V DC from car wipers (has a built-in gear).
- 230V AC motor to rotate the plate in the microwave.

Thanks for the answers.
Yes, I want to use cash, but as I mentioned, I'm green in it.

This board has a diameter of 35cm, it is already rotated. It is not light in itself, but I can do it in a different way, I can handle it.
And the objects are different. From rolls, bread, meats, to stones, toys, dishes. Differently. Max, probably under 10kg, but it's probably too much. But let it be.

Or otherwise, the one that will be able to do a lot, but it won't take me too much. So the set is most efficient for a reasonable price. And this rotation is to be slow. I can't determine how much.

Assemble from parts with the help of the forum I assemble. I was looking for something there, but if you are not in the subject, it's also difficult to choose something.

Kamil.

Look at OLX, such engines (for wipers) are from "for free" up to several dozen zlotys.
It is safer to play with 12V motors - you will use an AT "computer" power supply to get them, for getting a pack of live animals ...

You must specify how much. Because the gear depends on it. 1 revolution per minute, 10 turns?

Is that how you see it? :

https://www.youtube.com/watch?v=xPfOM-LbBww

This is how I see it as in the Youtube link.

1 revolution per minute probably ok, but I would like to have it modulated that I change my speed.

How much? PLN 200 is a lot or is it poverty?

You buy a complete impeller for the Frania washing machine.
You attach a plywood wheel to the shield.
On the opposite side of the shaft you have a pulley that you drive with a wiper motor or similar.
Simple, cheap and effective.

Most gouging in this will be made of this table plus its bearing so that it rotates smoothly and without great resistance, then you can use even a weak motor to rotate with a belt transmission, as in the movie.

As I said, a mechanism for turning myself in 3D and for 3D printing. For me the problem is choosing a motor, speed controller etc.

Can anyone direct me to the equipment on ALLEGRO, OLX? What to buy and what exactly to do with it?
I know how it sounds, but I just don't know what to use to make it fit together.

Kamil.

Well, it can be done quite simply.
In the video you can see that the control system is from a laptop via some usb, which is most probably connected to an arduinio, the engine driver is connected to it and finally the motor.

You probably don't need such fountains. To my eye, you need a knob to set the speed and that's all. I would do it like this:
I buy a motor with a speed reducer and an adjustable power supply. Of course, you would have to make an extra belt pulley for the reducer.

A motor with a reducer, for example:



Link to the auction because the author may be interested in:
3.1.18. Do not send links that will become inactive after some time. This will cause the discussion to lose any meaning.
[Retrofood]

The seller there declares that at the maximum supply voltage the revolution is 85 rpm so something more than a revolution per second. When reducing, pulleys can go down with a maximum table revolutions below 1 rpm

For this you also need a power supply with smooth regulation of the output voltage and load of some 1A.

This is probably the easiest and cheapest way. Changing the direction of rotation involves swapping motor power terminals.
Changing the table turning speed is a change in the output voltage of the power supply.

The main question is whether such a motor will pull the rotary stoic. Here, the key ones become resistance as I wrote before. So it would be good to give a rolling bearing and under the table roller some larger ball from the bearing. Then you have a well-mounted table and even with a dozen or so kg you would like to put on it, you should spin it with a little force.

Buy a screwdriver for PLN 20 without batteries and this will be the best choice.
This is because there you have a clamp head and each axle is directly connected without any combinations with belts / wheels / gears.
For this speed control and power supply.
PLN 100 is the maximum budget.

Such something for the set with that engine is ok?
This?
3.1.18. Do not send links that will become inactive after some time. This will cause the discussion to lose any meaning.
[Retrofood]

What else do I need?

I am seriously green, I am involved in 3D graphics, but I will not buy a 360 photography table because it costs so much that my head hurts.
I have to do it myself, but I have no idea about it.

Kamil.

I would take something like this more:



3.1.18. Do not send links that will become inactive after some time. This will cause the discussion to lose any meaning.
[Retrofood]

But this is not an ideal solution because:
1. It has a slightly higher supply voltage than 27V (it has 30V) so you can't set the RPM to max because you can damage the motor.
2. There will be no minimum RPM because the minimum is 10V.
3. You also need to measure the output voltage with something and mark on the knob where it is 27V. (The engine would probably tolerate also 30V, but there is probably no point risking burning)

That's so many minuses. The pros are that it is enough to screw the power cable to it (where there is L and N) in the last two you screw the second cable and connect it to the motor and that's all.

You need a power source for the regulators you have installed before, so the power supply above. There could be some power supply from the old laptop. They have something around 20V, so the engine would not run at maximum speed.

Of course, you can connect this power supply set to 27V and any of the regulators that you put in and then you regulate flows from the minimum voltage, but maybe it would not be needed because it would be enough 10V minimum from the box that I inserted.

With cheaper control systems with such an engine you could try such a regulator:
3.1.18. Do not send links that will become inactive after some time. This will cause the discussion to lose any meaning.

but it is also an alternative to those 2 links you gave earlier because you still need a power source.

You didn't write what turns are needed at this table.
With this engine you will have a maximum of half a turn per second and probably even less, depending on what pulleys you use for the transmission axle and table axis.
Minimally it will be rather slow and it depends on what speed will be from the gearbox at 10V. If you need less, you either disassemble the power supply that I inserted and modify or add one of the regulators listed by yourself.
The problem at low speed will be that it is difficult to guess whether the motor will pull the load because it is weaker at a lower voltage - so figuratively and colloquially speaking.
That's why I wrote earlier about a good table bearing.

You have it at a cheap price. I have already used such a solution for controlling engine revolutions, so it is tested, except that I have such a regulated power supply in stock at home.

Welcome back,

I would like to propose cooperation. If someone can construct it for me from parts that we choose, but we buy on Allegro, zero pulling anything, because I would like to be able to fix it later, if I break down.
Please contact me via email.

Regards,
Kamil.

You buy the whole next module. The price of the cash will be lower than your journey to the store in part, and more.
You can also order the same in China. Even cheaper.
12V motor with gearbox. Probably for you 2 or 5 rpm it is enough about 20 $ for this possibly a regulator. Under 2 $. The power supply and battery are penny matters.