New pump!

Thank you tntjockey:)

great!

I just thought how the second wall spacecould be used for something like a gel to collect and give out heat.

Must say again, excellent base dude! The digging in of the base is the worst thing about pumping to me. That’s a really nice solution you’ve got there.

Thanks StarfigherCMD. It really is quite comfortable. No pain or anything. I have not had any sealing issues, but it is an easy process to rubberize the contacting surfaces on the base if ever needed. I will very likely throw some photos up in my log later today of actual use so that you guys can see it in action. I am using a brake bleeding pump that I purchased from a local auto supply place. Works well for what I need!

I am an industrial designer / sculptor / and machinist, and have a few degrees in this stuff (BFA (sculpture) , MFA (sculpture) , Mdes (industrial design), MTC (machinist) for those who are curious) . This build was a proof of concept to see if there would be any benefit to having a cylinder that was actually double walled. Apart from distributing the vacuum pressure over a much larger surface area which I believe actually provides a more gentle welling up of vacuum pressure, it also creates an opportunity to incorporate heating in different ways. I have found that there is less thermal conduction with the double wall vacuum setup. During the warmup, when I use an IR lamp before I use the cylinder, I find that my penis is still pretty warm even after 15 minutes of pumping. ALSO- if the cylinder is placed in a sink full of hot water, the air space between the walls heats up, and when suction forces are applied, this air is distributed into the main cylinder where the action takes place.

So far, its really quite good. I will comment on how I intend to use it in my personal log thread.

That’s really cool you made that yourself. I want to learn to how to make stuff like that. Maybe I’ll start with carpentry someday. My father has a lot of great tools for woodworking.

Thanks YKM123321. Making stuff is a lot of fun. I find the actual process more rewarding than seeing the actual final product. Mastering the processes is the most rewarding part.

Very cool and creative! Talk about utilizing your time in a positive way.

Hmm thinking about the double wall. What if you could do a setup that could pump warm water in between the 2 cylinders. For instance using the water to heat yourself yet stay nice and dry. Like a hybrid.

Thanks Houstonwoods!

Big scoob, that is certainly an idea that had crossed my mind. Something to try in future iterations for sure.

If you combine these ideas with a pump that pulsates instead of holding static pressure you could probably maximize results even further.

I get what you’re saying

That’d be very cool. I’d like to pump in ice cold water. I started filling my BM XX40 with cold water to reduce/prevent fluid retention and discoloration.