*These Mastery classes are complimentary to individuals who have ordered a BERNINA sewing machine from Studio BERNINA. If you bought your BERNINA machine from another vendor, make sure you connect with us to talk to about our adoption program. For hems and seams that pucker You need to use a http://elna-sewing-machines-boul81233.blog2learn.com/42881863/boulder-co-sewing-machine-repair-an-overview