the capacity of the press?
The press as described in the plans has a maximum capacity of about 75kgs (165lbs) although you could scale all the dimension up or down to make any size you like.
How much will the press cost to make?
This wine press cost me about A$300 (= about US$180). Similar sized presses from the homebrew stores cost around A$600-$750. My plans show you how to save even more money and for the press to potentially cost you next to nothing (except perhaps your time).
How long will it take to make?
The whole project took me about a week, including design and sourcing of all the materials. Although with the help of my plans you should be able to make it in just a few days.
Why do you need a wine press and why make one?
Speaking from experience, for my first vintage, I purchased around 70kg and pressed the pulp by hand using a straining bag. This was far too much like hard work and with laziness being the father of invention, I knew there had to be a better way. I could have bought a press, but why not make one at half the cost or less?
Where did I get my ideas?
Finding information about building a wine press was very difficult. It would have been almost impossible for me to make a wine press like the commercial ones for a reasonable price, since they used a lot of steel components which would have required the services of a steel fabricator. As my press would be a once off construction, it would have been very expensive and in any case it wouldn't have been "home made".
The press needed to be simple and relatively inexpensive to build using materials which were readily available. I found a few other plans on the Internet for a home made wine press but they were scant on detailed information and to me they still seemed to have a number of deficiencies.
So my only choice was to return back to the basic principles of centuries ago and design one from scratch. After considerable design effort, a bit of trial and error, and some common sense, I ended up with the press you can see in this site.