I mentioned this in the topic What's your favorite DIY sex toy. However this toy has gotten to a point that I thought I should post a new topic for it. I'm calling it the Arc because the basic principle is that it changes linear motion into an arc motion. I found once I had the base for that, I've been able to make attachments that gives the machine more versatility. My latest attachment gives it double action, it can drive a dildo and pump a sleeve on my cock at the same time.
I just refined the design of the double action attachment, so it has more adjustability to allow me to better fit it to my anatomy. You really don't have any idea how well something like this is going to work until you test it out, well I did just that and decided to shoot a video of it in action. You can check it out here.
https://www.xvideos.com/video.oicauob0060/double_action_fuck_machine_i_m_a_lucky_pierre
It's kind of hard to explain the sensation, I mean this machine has you under full control. Since it is one motor driving both actions the strokes are perfectly in sync with each other. The way the dildo arcs up as it penetrates you is an awesome feeling. The combination of anal and cock stimulation together generates an orgasm in no time, heck I haven't really turned up the speed, just a slow steady grind, it's heavenly!
I'm in the process of coming up with another attachment that would turn it into just a cock stroker, oh so many possibilities!
If you want to see more details about this toy, you can check it out here:
https://irish-dream.com/arc-dildo-pivot/
Cheers,
~Irish