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Essential Items
Essential Items
Speed Control option
Speed Control option
I recently discovered this little jem. You can feed it with up to 50v and 8 Amps. It works awesome as a speed control for the motor and as a bonus it has a remote control.
I am currently working on a new prototype that eliminates the need for the diaphragm and uses an air cylinder. See DIY Venus 2.0 for my latest build.
I am currently working on a new prototype that eliminates the need for the diaphragm and uses an air cylinder. See DIY Venus 2.0 for my latest build.
The OG version
The OG version
simple build, minimal parts
simple build, minimal parts
This DIY Venus build is simple to build and requires minimal parts. Shown above is the finished unit. A 24V Scooter motor, The diaphragm (purchased from venusformen.com $39) and the linkage from the motor to the diaphragm. The diaphragm is connected, via a hose clamp, to a 4" PVC coupler that has been glued to the top board. On the left wall is the Power supply and in the top section is the speed control and air line connections (fat hose goes to receiver and small hose goes to the air control box)
Speed Controller
Speed Controller
PWM DC Motor Speed Controller,
DC 10-55V/60A, LED Display Stepless DC Motor Speed Controller with Adjustable Potentiometer ad Ford-Brake-Reverse Switch. Purchased from amazon for $20.
Power Supply
Power Supply
CUI Inc. VGS-200C-24
I have tried several different power supplies over the years, and some were good some bad. This one is a good one. Purchased from Digikey for $30.
The disk comes from venus with a thru hole in the center, just drill and tap to match the shaft on the motor (M8 1.25 pitch i believe). then just screw it on and use the set screw to add additional strength. A 1/4" bolt with a spacer, to get the linkage straight to the diaphram, makes for simple connection.
This is the disc (venusformen.com $15) that allows for adjustments to the stroke length of the linkage. Different size receivers as well as different sized men, require different tuning of the unit for optimal enjoyment. (the one shown here is from a different motor and different mounting)
The Diaphragm with linkage (1/4 20 threaded rod) clamped to the pvc coupler. Super clean and simple.
Speed control Mounting
Speed control Mounting
I mounted the speed control with a couple small screws and made connections from AC power, DC out to motor. I modified the stock on/off speed potentiometer connections to lengthen the remote. I just used a length of Cat5 wire and made my own custom remote box from a block of wood.
Custom remote
Custom remote
I used a length or Cat5 wire to connect the potentiometer / on-off switch to the speed control unit. Secure the wire in the box with a few staples or tie a knot so you cant yank the wire from the box.
Completed unit
Completed unit
Air Control Box
Air Control Box
Air control box (purchased from venusformen.com $40) gives you the ability to fine tune the stroke of the receiver. Add air into the system for a longer stroke and take air out to bring the unit close to the body (so it doesnt pop off).
Dont want to build one yourself? Pay me to build you one! send me a message at my Fetlife profile. We can work out a plan and price for a unit for your very own!!
Dont want to build one yourself? Pay me to build you one! send me a message at my Fetlife profile. We can work out a plan and price for a unit for your very own!!
Vids of it in action
Copy of PXL_20211006_185401709.mp4This is a vid of one in action, nothing special but gives you an idea of whats going on and how it all goes together. They really are very simple, you only need a few parts and your in business. This version is using a motor from a wheelchair. Really quiet but not as fast as I like. A good option however and they are usually quality motors. I got this one on ebay for like 30 bucks. Note the coiled wire I used for the remote, it has the 1/4" stereo plug on it and i wired a female jack in the lid so I could just unplug it to store it. I just basically made an extension cord for the potentiometer for the speed control.
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