Having originated this query, I double-checked my assembly was OK as outlined in 1 and 2 and then moved onto 3, which I'd tried before writing. This time holding everything firmly produced the desired results consistently. To any doubters out there, I can now confirm that even on Low you WILL behave. Single pulses will get your attention and you won't ignore a timed sequence punishment, even on Low. I haven't dared to try Medium at all now.
But this still leaves a potential problem with the scrotal contact as it seemed pretty sound even when no pulses could be felt. And I did check repeatedly. Cupping everything works but has obvious limitations! It seems that the contact resistance has to be below a certain level before any strength of pulse can be felt.
Two solutions come to mind:
1 Some sort of elasticated strap around the outer electrode and the scrotum to maintain good contact at all times.
2 Replace or enhance the outer electrode to be or include a conductive scrotal strap, along the lines of an anti-static wrist strap
Contact area is essential, hence the size of our chosen parts.
The lower electrode should theoretically make contact even without straps according to our testing, but it does depend on anatomy, angles and so forth... With a CB6000 you can make the hole higher to get better contact... while on a 3000 you're pretty much limited in vertical positioning because you're using the existing venting hole.
Elastic and removable aids are probably fine to add a bit of pressure, as long as they're comfortable, though users must resist the temptation to "secure" the bottom electrode by non-elastic means because safety is the #1 concern with any product that provides electrical stimulation.
Under normal circumstances, you'd also be wearing clothing, which often provides quite a bit of extra compression in that area.
As a last resort, a visit to your hardware store will yield many potential replacements and add-ons for the electrodes, just in case you need a bit more padding or thickness etc. just make sure to buy stainless steel ones.
I found this a problem also I am going to glue some cooking foil from the hole back up the tube to the inner edge where contact will be maintained and possibly this will mean that the metal plate will not be required ,[A neater nolution I think]
Any reason why this should not be effective?
Steelstrong
I too initially encountered this problem. It worked about 50% of the time and I soon noticed that pressing the wires down at the receiver caused consistent contact. I tightened the screws to make better contact and it worked, but I was worried about the stress it put on the housing.
Deciding it was clearly contact INSIDE the receiver I acquired some 6S brass washers from a local hardware store. Brass conducts great and they are almost EXACTLY the size of the rings on the board (I wanted to make sure they didn't short anything else!) The washers (1 on each side) made solid contact without having to over tighten the screws.
But this still leaves a potential problem with the scrotal contact as it seemed pretty sound even when no pulses could be felt. And I did check repeatedly. Cupping everything works but has obvious limitations! It seems that the contact resistance has to be below a certain level before any strength of pulse can be felt.
Two solutions come to mind:
1 Some sort of elasticated strap around the outer electrode and the scrotum to maintain good contact at all times.
2 Replace or enhance the outer electrode to be or include a conductive scrotal strap, along the lines of an anti-static wrist strap
Contact area is essential, hence the size of our chosen parts.
The lower electrode should theoretically make contact even without straps according to our testing, but it does depend on anatomy, angles and so forth... With a CB6000 you can make the hole higher to get better contact... while on a 3000 you're pretty much limited in vertical positioning because you're using the existing venting hole.
Elastic and removable aids are probably fine to add a bit of pressure, as long as they're comfortable, though users must resist the temptation to "secure" the bottom electrode by non-elastic means because safety is the #1 concern with any product that provides electrical stimulation.
Under normal circumstances, you'd also be wearing clothing, which often provides quite a bit of extra compression in that area.
As a last resort, a visit to your hardware store will yield many potential replacements and add-ons for the electrodes, just in case you need a bit more padding or thickness etc. just make sure to buy stainless steel ones.
Thanks for the great feedback!