Auto pump idea
I’m sure this has been thought about before but, I didn’t see any post on it.
What if you took a regular high pressure hand pump and motorized it.
I’m thinking you could use a wheel with the diameter of the pump travel. Connect the handle of the pump to the wheel at the pump stroke diameter. The pump base would be mounted to a pivot so that the shaft of the pump could remain straight as the wheel turned. A shaft through the center of the wheel would be hooked to a gear reduced electric motor in order to get something like 30 rpm or so. That would be one complete pump every 2 seconds. All of that would be mounted to a common base of course.
The pump could be hooked to a stationary distrubution pipe with a microbore hose so that your gun didn’t have to be so close to this monstrous setup. 😀
Seems like you could get away with something like this relatively cheap compared to a real electric or gas hpa pump. This would probably be best for a person with one or two guns that doesn’t shoot a ton. I imagine the pump might wear out sooner since it would probably be getting used more than if you had to use it by hand.
I need to figure out the loads and what size motor would be needed.
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LOL, I have my “auto pump” half finished. I need to mill a few more parts and I got tired of trying on my shaky mill table. As soon as I get my new mill table finished I will finish off the pump. Its similar to what you have described with a few exceptions. I have made it adjustable to fit just about any pump you could want to put into it.
The biggest hurdle to overcome in building one of these is the amount of force you need to compress the final stage of the pump. So far Ive bought everything I needed on Ebay for small numbers. I bought all the steel here locally out of scrap piles sold by the pound. When Im done I will have spent between 100-150 total in parts and materials.
As WoK said there are pics of one type here on this site. Just do a search.
Also, I was looking at the booster pumps that use hydraulic rams. Seems like a small setup like that could be made pretty easy. I’m not sure of the cost for something like that though as it gets a little more involved.
Very cool. If you find the link post it up please.
I am going to go back to the search 🙂
We have a video of that idea on here somewhere. A member did just that.
Two or more pumps could probably be adapted to a setup like this depending on the size of motor needed. Also, you could hook a pressure shutoff switch in the output line so that it only pumps to a certain pressure and shuts off. 🙂
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oops I stay stupid..