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Mercury 337 Industrial Walking Foot Sewing Machine and Servo Motors

bj139

bj139

Well-Known Member
Joined
Jun 13, 2019
Messages
5,377
Location
SE PA
I bought the Consew CSM3000 servo motor as a renewed item. It was missing the L-bolt, washers and nuts to adjust the motor position. I got out my welder and put a couple of tacks on either side of a carriage bolt and steel pin. Photo shown below. I just chatted with Amazon service and they issued me a $14 refund to compensate for the missing parts.
The Consew setting for minimum speed is 200 while my Enduro servo motor is 100. The Enduro manual says this is 100 rpm. I don't have a manual for the Consew and can't seem to find one on the internet.
 
I have the same motor. Not much to it. Up or down to increase or decrease max rpm’s. One button for needle positioner you can set to up or down. I believe the other button changes rotation of the motor. I believe mine only goes down to 500 or 600 rpm’s as a max speed setting. You can definitely go slower with the pedal though. I changed the drive pulley on mine to 45 mm. It made quite a difference. I’ve since added the needle positioner. I love the needle positioner. I very rarely even touch the hand wheel.


Sent from my iPhone using Tapatalk Pro
 
How are you liking the Consew-branded brushless? I bought a cheap version off of eBay, and like it for the most part, especially for the torque. However it's a bit jerky to start compared to the Enduro.
 
4090Sharps said:
How are you liking the Consew-branded brushless? I bought a cheap version off of eBay, and like it for the most part, especially for the torque. However it's a bit jerky to start compared to the Enduro.
Click to expand...
I haven't mounted it to a table yet but it seems as smooth as my Enduro. You can't beat the Enduro for the price, IMHO.
 
I want to build a box for the machines out of 1x3s near the front so I can just drop them in and readjust the belt. I also have to splice in a wire to the controller and rig a foot pedal to it for foot control. I won't have knee lift which is very nice to have. The Singer 281 has an oil pump which I am not set up for. I don't know if it can be manually oiled completely. I am only sewing for maybe 5 minutes a day or less so it will probably outlive me even manually oiled. I could probably fit a two pulley speed reducer between the motor and sewing machines. I sized the board to 18 inches deep to fit the belt I already had. The board is 3/4 inch plywood 24" x 18".
 
I enlarged the needle hole in the hook on my Mercury 337 to enable larger needle usage.
I just tested it with V92 Kevlar thread in top and V92 polyester thread in bottom with a size 24 needle. No skipped stitches so I guess the hole in the hook is big enough. Here is the video for proof. I was holding my phone in my left hand and both controlling speed and reverse lever with my right hand. Sews pretty good. The reverse lever had been clunking up and down under servo motor power but that has almost disappeared. I think oil has penetrated and loosened up a linkage so no adjustment should be needed.
 
bj139 said:
I enlarged the needle hole in the hook on my Mercury 337 to enable larger needle usage.
I just tested it with V92 Kevlar thread in top and V92 polyester thread in bottom with a size 24 needle. No skipped stitches so I guess the hole in the hook is big enough. Here is the video for proof. I was holding my phone in my left hand and both controlling speed and reverse lever with my right hand. Sews pretty good. The reverse lever had been clunking up and down under servo motor power but that has almost disappeared. I think oil has penetrated and loosened up a linkage so no adjustment should be needed.
Click to expand...

If your plan is to use a larger thread than V92, have you confirmed the thicker thread will pass between the bobbin case tab and needle plate notch? I would that that will be your next, and more difficult hurdle.

Edit: I was thinking of a horizontal hook, may be easier to deal with on the vertically oriented hook.
 
4090Sharps said:
If your plan is to use a larger thread than V92, have you confirmed the thicker thread will pass between the bobbin case tab and needle plate notch? I would that that will be your next, and more difficult hurdle.

Edit: I was thinking of a horizontal hook, may be easier to deal with on the vertically oriented hook.
Click to expand...
The videos I have seen of industrial horizontal hook machines seem to show a wide open space for needle and thread clearance. I don't have any of these so I don't know. My Singer 15 has more clearance around the needle/thread area in the hook. I tried to take a picture showing this but I couldn't get it.
 
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