Below is stuff I copied from another thread on this earlier. The Twin Oaks folks just till and then shovel pathways for wheelbarrows/walking with a shovel. My organic gardening teacher has a furrow plow with adjustable sides that he puts onto his BCS tractor after tilling to make pathways.
Below is from the previous thread:
Row hiller
In Agra supply catalog.
Called Keulavator Row Shaper & Cultivator Frame for $139.95
for 3 pt hitch.
The 3pt keulavator from Agri-Supply at $139 is misleading. The complete price is just over $400 which gives you 2 hillers, 2 sweeps, and 2 shanks plus mounting hardware. Just the frame by itself is $139.
I have never done this and don't even have a garden but was wondering if you couldn't make the beds with a rear blade. With the soil well tilled and a rear blade at max angle wouldn't the windrows form beds. I have cut ditches with a blade and it works well to a point. Might even pay to buy a short 4' blade just for that purpose.
i use a 5' blade to make raised beds.started out with a row hipper set as far apart as possible & ended up with 4 rows.then i put the 5' blade on & pushed the 2 outside rows into the 2 inside.makes really wide ,deep beds.
Ralph