Cobra Class 3/4 stitch length control defined.

[Kcstott]

Forgive me if someone else already figured this out but me being a former machinist and a current Precision machine tool mechanic. When someone says "the numbers mean nothing" well someone put them on there for a reason I'm referring to the youtube video on the class 4 machine that was demoed by slickbald I believe the name is. Anyway Being American we live in a world of stitches per inch and threads per inch. and after some testing and measuring tonight the number on the scale of the stitch length control do mean something and they are actually quite accurate. I'll use metric thread form as an example. We Americans use threads per inch while the metric countries us millimeter pitch or mm per thread and this system of thought carries over to the sewing machine. The numbers are how long a single stitch is in millimeters. I checked every setting 4, 6, 8, 10, and 11 and all are close enough to their corresponding mm length and when i mean close enough i mean within a few thousandths of an inch close enough. 

so here's the conversion rounded off for ease of use. 
2mm between 4 and 0 = 12.7 stitches per inch
4mm = 6.5
6mm = 4.25 
8mm = 3
10mm = 2.5
11mm = 2.3
Now to get the range the LMC advertises you'd need to set the control lever at 1.5mm to get 22 Stitches per inch and then don't worry about anything above a 8mm setting. Don't take that as a fault or critique. It's merely a statement of what the machine is truly capable of. and saying the machine will stitch 3-22 stitches per inch is very accurate and conservative. I will be leaving this machine in my will as I know it will out live me. 

Write it down if you care but the numbers do in fact mean something.