Doesn't work for class M bobbin (Q'Nique 19 long arm) or class L for domestic Pfaff 1473cd and Janome 1600DB just printing plate as is on X1Carbon with .4 tip. Changing the size uniformly to 75% worked for both bobbin sizes, but only with regular small spool, not the cones used with longarm machines. The clip legs would need to spread wider to hold the spool onto the cone,
sorry to hear that. unfortunately I don’t know enough about bobbins to fit your needs. this was a request from my mom. if you want the cad file I’d be happy to share