Elbow grease and cast steel tamper
I'm currently thinking a drill powerd twin roller set up might be an option.
With grooves or ridges to help with the crush.
I know nostr:nprofile1qqs2rlzal4lleatrezg4tdrxw5d4srg3tcfkutuvjr5fzvu9h0kmrncpzemhxue69uhhyetvv9ujuvrcvd5xzapwvdhk6qgdwaehxw309aukzcn49ekk2qghwaehxw309aex2mrp0yh8x6tpd4ehgu3wvdhk68uj6gq did a vidoe on a crush technique I'll find it and have a bit of a review 😂
Discussion
Soumds like a plan. I made a concrete one over the winter for a paving job. I might pressgang that into action.. 🤔