Category: sextech

Vibrating 3d Printed Necklace

necklace-frontThere are a lot of sensible areas of the body which are also erogenous zones (see Wikipedia). The neck is one of them. Stimulation can be achieved eg. by licking and kissing. The stimulation can be quite strong. So why not try to stimulate your neck with vibration? We think it works.

Think of an artistic designed necklace or collar with a vibration function. The vibration will be turned on when you move and gets more intense when you shake our head eg. while dancing. Or the vibration function will be turned on remotely by your friend.

necklace tinkercadBody interaction has made a 3d design for a vibrating necklace. It can be secured by a solid clip closure at the back of the neck. At this place the vibration motor is positioned which gives an intense vibration especially at the back of the neck but also at the whole neck.



necklace-circuitsThe body interaction vibrator development board is inserted into the collar. It controls the vibration motor. The more you move the more it vibrates. There is also place for the battery. Wires and boards can be hidden. Unhidden it has a scifi look-alike.





closure-topIn the front there is a solid but easy to close hook closure.







Download 3d files from Thingiverse and print it.

Get the vibrating electronics from Tindie.

Edit and design your own with Tinkercad


French article about comingle, master-beta kit and bodyinteraction

Tu sais où tu peux le mettre, ton Arduino ?

Do you know where you can put your Arduino? –  Francois Mocq reports about three Arduino vibrator projects: comingle, master-beta kit and body interaction. Even more interesting he queries whether Arduino or Raspberry Pi is the right platform.

raspberry_pi_logo_rgb_552x650-212x250Raspberry Pi offers much more computing power and connectivity, eg. you could add a camera, do video processing and add more hardware.

On the other hand programming can be more complex and it may take more time to run you first script.


And there are more platforms out there like the very cheap ESP 8266 module with the NodeMCU software. The ESP8266 can connect directly with the internet via wi-fi.


Follow the discussion

Wireless battery charging of the body interaction vibrator development board

bisiliconeformfilledreadybigsiliconereadyvogel2One major Problem oft DIY electronic sex toys (or massage wands) are the need to charge the batteries. Usually the batteries are charged via the USB connector. This means that there is a physical connection between the sex toy and the USB connector, making it impossible to mold the whole sex toy with eg. silicone.




The solution is to use a wireless charging module (eg. this module from Seeedstudio). It comes in two parts: The sender (IN) and the receiver (OUT). Both are connected with a coil. If you place the two coils close together, the sender coils induces power in the receiver coil. Though you can share the batteries wireless. The receiver could be molded, separating the electronics, batteries, connectors etc. from the environment. The result is a form with a smooth surface enabling secure usage as a sex toy.




bigsiliconeready crossmeovedWe have made an easy DIY solution based on the body interaction vibrator development board, wireless charging module and a 3d printed silicone molding form.










big wireless part a

Part A: The molding form consists of two parts.


3d print form A

Step 1: The form comes in 2 parts. Print both parts of the form. The STL file is called part A. After printing polish the inner part of the form as well as the surface between the two sides.







big wireless part bStep 2: Now print out part B. It is used to fasten the board, battery, receiver coil and receiver board.







verkabelung seeedwirelssechargingStep 3: Connect the + pad of the wireless charging receiver board with the pin marked + of the vibrator development board (that’s pin 1 of the MAX1555 battery charging IC). Connect – of the receiver with the GND pad of the vibrator development board. You need two short wires and have to solder them at the two boards.





wiresStep 4: Now wind up the wires connecting the board with the battery and the vibration motor. (The connection to the receiver board is not shown on the image.)








battery and board installedbattery and board installed 2Step 5: Now attach the coil on the shorter “cross” of part B with some glue. There must be space between the coil and the outer longer cross. Then attach the board, battery and vibration motor as shown in the pictures. you can use some glue to fix these parts. Be sure to set the switch to the ON position.






The receiver board can be placed within the coil. It’s the small long board in the middle.









boardandbattery in half-formStep 6: Fix part B (with board, coil etc.) at part A. Be sure that there is enough space between them (min. 5mm).











form and electronics inserted 1form and electronics inserted vogelansichtfilles form from topStep 7: Now attach the second part of part A. Use some tinkering wire. Double check: There must be space between Part A and part B. And there must be space between the coil and the upper edge of form A as the coil must be molded by the silicone.






aftermolding wireless formStep 8: Now pour silicone into the form. Use silicone with a high Shore A value. The higher the Shore A value is the higher is the firmness of the silicone form. We have used silicone with Shore A 45. You need about 90 ml silicone.











bigsiliconeready removedStep 9: After the silicone gets hard, remove the tinkering wires and softly remove the form A. Remove overhanging part.







bigsiliconeready crossmeovedStep 10: Now you can remove the outer cross of part B.











bigsiliconereadyvogel1That’s it. It takes about half an hour (without printing). Before using check carefully that the silicone is solid. Even if you skew the silicone form you should not be able to feel the edges of the vibrator development board. Otherwise there is the danger to get hurt. Use it as a massage toy on your own risk. For charging the batteries place the molded coil over the sender coil. The yellow charging LED should go on.

The next development step is a battery charging station!






Download 3d printing files from Thingiverse

Modify and construct your own with the online 3d modelling software Tinkercad: Form A, Form B


How-to assemble the vibrator ring case

ringredbottom small ring red side small

We have ordered a food safe version of the vibrator ring case from a 3d printing service provider. The case consist of the main body and a kind of cap to close the case.

The design could be improved to have more space for the battery and a more stable cap. The ring diameter is too small for most males, but you can combine the vibrator ring and the “organic” vibrator for her. The combination of these two vibrators gives you a vibration in two dimensions. (The vibration of  a vibration motor is only strong in one direction – you can think of either the x-, y- or z-axis of a coordination system. If you combine two motors you have vibration along two axes of the coordination system, take three you have vibration along all axes).

The video shows how-to assemble your own vibrator ring.

View with YouTube

Improved version! Open with Tinkercad.  Download from Thingiverse.

New vibrator design for the vibrator development board & 3d cases

Chain of Ball 2

Chain of Ball Vibrator design with cap

The new design catches the “chain of balls” design theme used in some sex toys. It was constructed in Tinkercad and it is really simple to do it on your own. This how-to video explains the construction in detail.




many balls body interaction vibrator development board

The design is composed from several spheres

Try it on your own in Tinkercad. Just grab a sphere, make a copy, resize the copy, make a copy again and repeat this until you have a chain of spheres. Now select all sphere and use the “align” tool. That’s it.

The tricky part is the screw cap. This is needed to enclose the body interaction vibrator development board.





Chain of Ball vibrator being printed

Chain of Ball vibrator being printed in ABS, XYZ printer 1.0, on the bottom is the support material

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