I have some industrial sewing machines.
Some of the cheap brushless motors have a reputation for poor low speed
torque.
However some of the higher end brushless motors are apparently ok.
Check out the motors available from Sailrite.com.
If you do some digging you will realize that Consew (a sewing machine
company) sells the same motor.
I think these better brushless motors start at about $200 each.
Most are made in China or Taiwan.
There are some brushed DC motors out there that are preferable for some
low speed sewing machine applications.
The guys who sew leather at very slow speeds like them.
I sew canvas covers and sails once in a while, and I needed a new motor.
I bought one of the recommended brushed DC motors and it works,
however I increased the belt reduction to the sewing machine head to
further the low speed control.
I think I got it for $110 off Ebay including free shipping. It was
suppose to have a standard 7/8" keyed spindle (AMCO standard spindle),
but it is not.
Its a smaller metric shaft.
Dave
On 7/8/2018 11:36 PM, Ralph Stirling wrote:
Anybody ever checked out this type of motor for
CNC use? Seems like a pretty good deal for 400W
with a drive, at least for a small spindle motor. I'm
wondering how easily the drive could be hacked for
LCNC position control. There are a lot of different
motors and power ratings on ebay in this category.
https://ebay.com/itm/253624140119
-- Ralph
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