Stretchy Brim Beret
Knit and Crochet Beret

This pattern has a knit double brim that’s joined and then the beret is crocheted from the brim up.
Knit on the Addi King size (46 needle) knitting machine, then crocheted to finish.
I used Lion Brand Respun, but any similar weight yarn that works in your knitting machine will work.
Will it work on the Sentro 48? Sure, but the stitch count will be off.