DIY 3D Printed Estim Penis Play Conductive Rubber Cock Loop Insulator

Apr 24, 2019

Penis play made easier and better with a 3D printed cock loop insulator

I had so much fun making my Bumble Bee Tri-polar estim electrode, and my Curly Wurly Bi-polar Electrode.

So, after seeing a fantastic post by miralicious90 on Smartstim.com where he designed an insulator for his cock ring I thought I would have a go at that too. After many trials and errors, basically because I am still a bit of a techno-muppet where 3D design is concerned I eventually designed this. I introduce to you the 3D Printable Cock Ring Insulator.

Image showing Joannes 3D printable cock ring insulator design
Behold, Joanne's 3D printable cock ring insulator

So what is it and what does it do?

Anyone who has read my popular guide Penis Play Guide For Hands-Free Orgasms will be aware that it is best to stimulate the two principal pleasure nerve bundles at the same time.

The Dorsal nerve runs down the top of the penis, and the Perineal nerves run between the anus and into the testicles. A lot of guys use cock loops to stimulate these areas, often putting one just under the glans of the penis and the other around their cock and balls.

The main problem with this setup is that the current flows along the top of the penis mainly focusing on the Dorsal nerves and the Perineal nerves get much less stimulation.

To rectify this problem guys often insulate the top of the lower cock loop using barriers like insulating tape. This works, but it is usually a pain to get set up just right.

Image showing cock ring penis play with and without insulation
It is definitely better to insulate the top half of the lower cock loop

A cock loop insulator works by only exposing the bottom section of cock loop to the skin while insulating the top. It also has the benefit of preventing pinching when tightening the loop too.

By insulating the top of the lower cock loop, you can direct the current through the Dorsal nerve and then down through the Perineal nerve group too doubling the fun. The sensations from the Dorsal nerve are often drowned out by the feelings you feel in your glans but your brain still interprets them, and this helps you on your way to some excellent hands-free orgasms.

Image showing the current flowing through the dorsal and perineal nerves
Using an insulator allows you to direct the current through both sets of nerves

Joanne comes to the rescue

So to make insulating the lower cock ring much easier I designed this insulator.

After checking up on lots of scientific research on the average penis size and girth I came up with an average circumference of 4.8"/12cm for an erect penis, and that works out as a diameter of 1.5"/3.8cm.

*cough* I have also done extensive, in-person research throughout my life and so that conclusion sounds about right LOL. ;)

I used that measurement for this design, and of course, it can be quite easily scaled up or down. So here is my take on the cock insulator. It prints standing up with raft support and only requires supports under the centre section of the arc. Once printed these supports are simply snapped off easily and that area is given a light sanding to smooth it down.

Image showing a print in action on my Ender 3 printer
Print time is in the region of an hour and a half

To get the best results thread a solid copper wire through the centre of your cock ring, this will make it stiffer, and it will transfer the current throughout the conductive rubber loop with no hot spots. This will also help with its longevity as the CR starts to break down over time raising its resistance.

Image showing a printed and painted cock ring insulator
Here is the first cock ring insulator design printed and painted ready for use

Great feedback and version 2

I have been getting some fantastic feedback from penis owners who have printed out my design and used it to good effect.

I have also got some great feedback on Smartstim and this has spurred me on to create Version 2 which is even better. It now features:

  • Fully Parametric Design: Just by changing some numbers you can adjust the CR tubing diameter, wall thickness, clearance gap, angle of insulation and exit dimensions to fit your locking method.
  • Addition of two holes that can be used with elastic cord to secure the cock ring round your waist or testicles to stop it walking during extended sessions
  • The design has changed to allow extender arms to be fitted to allow you to vary the size of the insulated section of CR tubing. This means you can fine-tune it for cock or cock and balls play.

So here is the design so far.

Image showing Version 2 of my cock ring insulator
Version 2 is much more functional and adjustable

Image showing Version 2 printed and painted cock ring insulator
Here is the second cock ring insulator design printed and painted ready for use

Free download

If you have access to a 3D printer, you can download the .stl files for it for free and print one out for yourself.

Version 1 Cock Ring Insulator

You can download the STL files to load into your slicer from my GDrive.

I used the following settings on my Ender 3 printer:

  • 0.1mm layer height
  • 2mm wall thickness
  • 2.5mm top and bottom layers
  • 20% infill, gyroid or grid pattern
  • Supports - in contact with bed
  • PLA material
  • Raft adhesion
  • Print time at 0.1mm - in the region of two hours

Tweak the design yourself in Fusion 360

Download the Version 1 Fusion File to experiment with it and create your own version. I will upload Version 2 here once the design is finalised.

Not got access to a 3D printer?

Buy a cock ring insulator from meI have now taken a huge step and that is to offer to print out these cock rings for anyone without a 3D printer for less than you can get them printed at Sapeways (aren't I nice). They will be supplied unpainted and will require a light sanding and then painting it with a plastic paint such as Krylon Fusion For Plastic. I just haven't got the time to do that myself hence the incredibly low prices for them.

CHECK OUT MY E-STIM STORE

Check out my DIY electrodes in my shop

Additional Info

  • Brief Synopsis: I have designed an easily printed cock loop insulator for better e-stim penis play
Joanne Summers

Sex Blogger, Review, Dildo Officianado, Kinky Quimsticking, Electrosex Loving Mum.

I have been reviewing sex toys and adult products for the last five years and I love doing what I do. If you find my reviews and articles interesting please leave a comment for me on them, I love reading feedback about them.

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7 comments

  • Ken Taylor
    Comment Link Ken Taylor Wednesday, 01 May 2019 20:16

    I am most defiantly interested in your Estim Penis Play Conductive Rubber Cock Loop Insulator...


    Please, Please,Please make some and let me know how much it will cost with delivery to the USA. I will give you my address to ship to win you need it !!!!!!


    Thanks in advance

  • Joanne Summers
    Comment Link Joanne Summers Thursday, 02 May 2019 13:50

    Thanks Ken,

    The designs are almost at a stage that I am happy with them, once I am then the design files will be available to download and print through commercial services like Shapeways and I will also provide an option of printing them for you (cheaper) and of course adding on P&P.

    Watch this space for news next week.

  • Joanne Summers
    Comment Link Joanne Summers Monday, 06 May 2019 10:24

    My designs are now tested and working a treat. My Stunt Cock had one hell of a good weekend with me trying them out. They are now available here - https://www.sexmachinereviews.co.uk/shop.html

  • Stephen Hooper
    Comment Link Stephen Hooper Sunday, 22 September 2019 16:42

    Your article is very very interesting or should I say 'Informative'. Its going to take more than one read on my part for it all to sink in. I have had very 'Pleasant' results using this sort of method but with a very basic and fiddly setup. Thank you Joanne.
    Regards Stephen

  • Joanne Summers
    Comment Link Joanne Summers Monday, 23 September 2019 10:23

    Thanks Stephen, I am glad that you have found the article interesting. E-Stim does involve a lot of trial and error in order to find the best sett up for you. I can recommend keeping a stimming diary to note settings and electrode placements.

    Happy Stimming.

    Jo

  • Artem
    Comment Link Artem Monday, 24 February 2020 15:32

    Unfortunately, the fusion 360 model cannot be downloaded. ((
    Could you fix the download

  • Joanne Summers
    Comment Link Joanne Summers Monday, 24 February 2020 16:33

    Sorry about that, it should be working for you now.
    Joanne

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