Steve,
I found a chart I made years ago of working space measurements. They are all home machines except the 31-20.
MACHINE.......... NEEDLE TO ARM
MODEL...............MEASUREMENT
Singers
31-20 10 ½”
403 etc 7 1/8”
15-90 etc 6 7/8”
201 8”
66 8”
306 etc 7 7/8”
301 7 ¼”
99 6 ¼”
128 6 3/8”
221 5 1/16”
Other Mfg
White Rotary 8 1/8”
MW URR284 7 3/8”
Wheeler & Wilson 8 7 3/8”
Originally Posted by
IamaHam
I have been looking up the class 31 machines today and they look like they would work great on a machine frame. Exactly what do they measure from needle to post?