This is a placeholder topic for “3-5V Shaftless Vibration Motor - 10 x 3.7mm” comments.
This 10mm diameter 3-5V shaftless vibration motor can be used to easily buzz attached components with low power draw and attached gel adhesive on the back.
Read moreHi there! For my Design and Technology year 12 major work, I need to create a vibration blanket to help reduce the risks of Deep Vein Thrombosis. According to my research, the finished product has to be between 10 and 30 hz, connected to a remote that turns it on and off in 15 minute cycles. I was looking at the vibration motors on the website, and was just wondering what would be best for doing what I needed to do, or any advice you might have. I was planning on possibly encasing the vibration motor in a silicone pad to sew up into a quilt square (so that I could space the vibration levels evenly throughout the entire quilt square). I was also contemplating possibly putting heating elements intermittently throughout the quilt as well, which also work on a 15 minute cycle. Please let me know any opinions/advice/or help choosing the correct materials, because I would greatly appreciate it. Thank you so much!
Hi there, @Charlie306848, and welcome to the forum, glad to have you here.
I can say that this one probably is an especially good motor for your project as it needs to be shut off every ten minutes to prevent overheating.
It might help to know a couple more details of your project before I can give more than very general advice.
For instance:
Hi! Though I haven’t worked out the full plan yet (I am still in the planning stage), I was planning on making the blanket 127 x 152 cm (which is a typical throw blanket size), and the vibration motors spaced out enough to make sure that it is even throughout the entire blanket in order to allow for proper effectiveness no matter the position of the blanket. It was going to be made in probably 17cm squared quilt squares, so it will probably have a 17cm gap between each motor (unless you recommend otherwise). And no, I believe that it will be a product that will be used when the person is awake, so it will just sit on their lap for however long it is used for. Saying that, however, I still (hopefully) want all the vibration motors connected to a single source/remote to turn it on and off easily for the user, and preferably have them on a cycle so that they turn on and off every so often. Hope this makes sense!
Hey @Charlie306848 ,
This sounds like an awesome project! I did some light research, and I think I have found the study that originally cites frequencies between 10-30 Hz. For this study, they had the participants standing on a vibrating plate to create this effect.
Depending on the exact material used, it would be my guess that the relatively low stiffness of a blanket or quilt will make it difficult to pass this vibration onto the user when compared to a solid plate that the user is putting their full weight down onto.
It may be worth considering some kind of wire frame or internal structure inside of the blanket to increase the stiffness of your blanket. This may also be useful as a guide for mounting and running your vibration motors.
Hope this helps!
Hi Samuel,
Great idea! How exactly would you propose I do this wire frame/internal structure? I am a student, so I’m not very experienced in the whole electronic realm so do forgive all of the questions haha. I was also just wondering how one would connect all the different vibration motors so that it could all be controlled by one thing/remote?
Hey Charlie,
The wireframe could really be anything that would stiffen the blanket from something that you have wired together yourself to some chicken wire you purchased from Bunnings. Actually making a wire frame is a little bit outside my engineering knowledge, though I have knitted a couple of blankets in my time (for babies mostly, but still).
Off the top of my head, I would probably string a few vibration motors along in series through the quilt like a column. You would ideally have several columns connected in parallel, all of them connected to the same controller.
However, I would worry that the above suggestion might get very hot and require quite a lot of power to run (which can lead to electrical dangers). I would recommend trying a much smaller prototype to get the basics down before jumping into the full blanket.
Hi Charlie
Would you not have to have the vibrations happening in phase or a fixed relationship ?? You might find that is 2 motors moved 180º out of phase the whole motion would be cancelled. Like having 2 speakers side by side and fed 180º out of phase. The listener in front of these speakers would hear nothing as the air pressure just gets shuffled back and forth between them.
I think the experiment with a person on a plate would have been done with 1 motor.
Could be difficult to synchronise multiple motors.
Just a thought to throw in there.
Cheers Bob
Thank you! Would you please be able to tell me what materials I should purchase?
Hey @Charlie306848 ,
It’s a bit hard to give you a concrete list of materials at this stage. I think a bit of prototyping is a good idea before you decide on a final material list.
I would start with 3 of these vibration motors (CE09860) and a way to control them. A microcontroller may be a good way to turn these on and off, like the Raspberry Pi Pico 2WH and will give you a decent amount of control over the vibration timing between the three motors.
I would start with that short parts list so you can confirm the idea and the motors all work in practice, and then look into building the final design.
Hope this helps!
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