I recently bought a lightly-used Consew 206RB-5 with a servo motor for my leatherworking. Once I installed a speed reducer, it's a great machine, and sews beautifully.
My issue is that even though the machine is advertised all over the place as having 3/8" capacity and a 9/16" max foot clearance, the presser foot won't lift more than around 3/8", even when using the knee lifter. It's definitely not lifting more than 1/2" because I have a 1/2" thick piece of oak that doesn't even come close to fitting under the foot at maximum lift.
Is Is there a way to adjust the foot lift height, could it be the thickness of the presser foot set I've got on there, is the machine maybe misadjusted, etc.? I'm not planning to sew more than the rated capacity, but I want to make sure the machine is working as designed.