Edging

[Tinker D]

I do know that the body shakes or shivers before cumming, maybe body resistance? Stick two probes and take a meter reading. Then play with yourself and just before you pop, watch the meter. May give us a clue, like a lie detector or something.

[Like Ra]

I think, ideally, the measurements should include contractions, skin potentials, breaths, pulse, ECG, and brain waves. And... there must be some scientific papers on it.

[johngerners]

As an engineer, I would assume these devices need calibration to each individual. And even then, there are couple of factors that could distort readings right before orgasm. For example an excessive amount of endurance sports will certainly reduce muscle contractions (mainly through exhaustion of the nerve system).
So I'm really sceptical.

What might actually work is if you use an estim. Some stimulation patterns might bring you always near but never over the edge. But it would certainly need a lot of trying to find the right settings...

[Johnnydom16]

I own the Edge o Matic and let me tell you it is INCREDIBLE, there is now new modes in the latest firmware.

It does take some calibration, but once your personal settings are right, this thing will bring you to the edge and nothing more for HOURS. I know because i got stuck in what was supposed to be an hour long session for 6 hours waiting for my backup to fully melt. I didnt cum once it was the most wonderful torment ive ever experienced in SB. The device is worth every single dollar

[essanym]

Nogasm photos for someone that DM'd me.  Don't pay attention to the direction the air pressure sensor's inlet is pointing.  The sensor it calls for was not in stock when I got this one but but this one is electrically the exact same.  This device works.

Edit:  Added another photo of the finished device (electronically) put together correctly.