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Topic starter
05/16/2023 2:35 pm
Hello,
After I got my Eupho, my Helix is kind of surplus. So the idea came up to put a vibration motor in the Helix. Yes, I know there is a vibration Helix ready on offer, but first this was intended as test to later build a vibrating Eupho. Second I always wanted to build a vibrating sex toy with chaotic vibration pattern.
So I spend about 35 bucks on a small ERM motor, case, Pi Pico microcontroller, motor driver module, two buttons, 8 LEDs and sundries.
First prototype and software had been quickly built and put together. It is working, but the vibration patterns need some more fine tuning. At the moment I have 13 classic modes like continuous, sine, triangle, sawtooth, pulses with different speeds and with/without pause. Not all theses modes make sense.
The chaotic vibration patterns - which I call "erratic mode" - are a nice gimmick and preferable over fixed pattern imo. They either use a sine wave and random numbers to vary frequency, amplitude and offset or pulses with random lengths and pauses.
I am not sure if a vibrating Eupho is wise, as I used a 12mm motor for the helix. It has a speed of 9000 rpm and at full speed with an maximum of 5g. The force is more than sufficient, but the frequency is already too high for my taste. For the Eupho I would need to reduce the size of the motor to the 6mm class which gives an even higher rpm thus vibration frequency. Geared motors at that size are either crap or very expensive. Maybe a linear motor similar to what's used in the Iphones would be better suited, but I haven't found the right one yet.
As I have no commercial interest I'm thinking about making this open source (C++ for Arduino) on Github, but this connected with effort which makes only sense if some people honestly want to build one for themselves and contribute with improvements. On the other hand I don't want to give Chinese sex toy manufacturers free R & D.
Best wishes
Hans
This topic was modified 2 years ago 2 times by Hans_Steam
05/16/2023 4:40 pm
That's awesome !
05/17/2023 7:30 am
Very ingenious indeed!
05/19/2023 4:19 pm
Interesting project. Have you taken it for a test-drive yet?
05/20/2023 4:01 am
Fantastic, I love DIY and electronics.
Have you seen this thread ? @frekansdavtamj added a motor to an MGX. He used an old cellphone vibrator motor, those things are tiny. You could easily fit one in a Eupho.
I am wondering how you channel the wires from the motor? Did you drill a hole from the rear, or cut a groove ? Also, what did you use to fill in the hole, and how did you prevent it from fouling the cam? A small tube/cap or some other form of protection?
05/20/2023 12:20 pm
At the very least this deserves an A for effort. I would never be able to put together a project like this. Really cool stuff!
Topic starter
05/21/2023 11:48 am
Hello,
@Clenchy: Yes. That's what I meant by "it is working".
@lanoix: I drilled a hole for the cable. For the Eupho it would be better to cut a groove. After gluing the motor into the Helix, I first put a plastic cover over it, sealed it with high viscosity CA glue and than filled the remaining cut with epoxy.
I have three phone motors which would fit into the Eupho, but their resonance frequency it way too high.
As building my own sex toy is great fun and the test rides so far had been rewarding, I started the next prototype which will take things to the next level by using 3D-printing. But this one will be properly designed and is a long term project. I have a bunch of ideas to improve user interface, software and hardware.
Best wishes
Hans
Fred27 reacted
05/22/2023 6:54 am
But this one will be properly designed and is a long term project. I have a bunch of ideas to improve user interface, software and hardware.
Looking forward to seeing the end results. Maybe you'll get a patent!
06/01/2023 1:04 pm
Very neat. Add some pressure sensors or EMG electrodes to detect contractions, and you could have a true-to-life "Orgasmatron 9000"!
I'm wondering if a smaller vibrator, with a limited range of motion so it can knock around the walls of the cavity a bit, would provide a different sensation versus a buzzing.
Have you thought about integrating it with buttplug.io? I think they have limited Arduino support, might be worth looking into.
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