Kinda like this?
Haven’t given it the true test yet (still need to print my base, with seed collector and skuff tray). Tested it out with plastic scraps and worked on principle for sure…
Mind you, I don’t think I’ll be making these for others. Took dang near a whole roll of filament, and was a four day long print job on my big printer (thats too much time “off” for that printer). Measures 18" x 12" roughly… I adjust the vacuum suction with a valve on my vacuum (switches between wand and floor).