The clutch motor....

[Matt S]

2 hours ago, Gregg From Keystone Sewing said:

Could be.  Or it could be used to do this, YouTube demo of SP-1100NPFL 24V output signal

That would greatly simplify the height-adjustable table I'm scheming on. Shame there's not many motors with that function that I can find. Industrial footswitch and a DC chassis supply ought to do the job I reckon.

[Wizcrafts]

3 hours ago, Gregg From Keystone Sewing said:

Could be.  Or it could be used to do this, YouTube demo of SP-1100NPFL 24V output signal

 

I would love to be able to heel down to lift the feet on several of my machines.

[Gregg From Keystone Sewing]

1 hour ago, Matt S said:

That would greatly simplify the height-adjustable table I'm scheming on. Shame there's not many motors with that function that I can find. Industrial footswitch and a DC chassis supply ought to do the job I reckon.

There are more than one servo motors on the market that are on the less expensive end that have a 24V output like this, Consew had a CS-3001 model, however we no longer carry this one.  Of course, Efka and Mitsubishi motors have these type of outputs as well.  

[Uwe]

I'd love to find out more about that solenoid you're using, @Gregg From Keystone Sewing! Is that solenoid an industry standard part that one can buy at Grainger or McMaster-Carr,  or is it some specialized part that you by chance sell separately? I experimented once with an electric solenoid to make an electric foot lift but failed miserably. My solenoid was a 110V door latching solenoid. It closed with a BANG but wasn't nearly strong enough to move the foot lift lever directly. It didn't even occur to me that a 24V output in the controller box could directly drive a solenoid strong enough to actuate the foot lift lever. Perhaps the linkage levers increase the pulling power just enough. 

We should probably spin off the recent foot lift discussion into a separate topic if it's not too late. 

[Uwe]

Turns out foot lift solenoids are actually a thing and readily available. I should have Googled "foot lift solenoid" a year ago. Here's one example of commercially available units: 

Edited September 7, 2018 by Uwe

[Constabulary]

the JACK Servos from College Sewing also have this "4 prong output" and the 2 prong output - the 2 prong is for an LED light afaik but the 4 prong is nowhere mentioned. Maybe worth checking with JACK or College Sewing?

EDIT:
Dumb me -  the 4 prong is for the needle positioner - I removed it so the output is free But I don´t know if this output can be used for a foot lifter too

Edited September 8, 2018 by Constabulary

[Gregg From Keystone Sewing]

On 9/7/2018 at 6:34 PM, Uwe said:

I'd love to find out more about that solenoid you're using

Uwe,

No secrets here, modified PF-2 is what I use for this setup.  I don't do anything with how the mechanism works, but I do some customization to the mounting bracket to get the proper height for the machine it's being installed onto.  The rod eye, aligning coupler and linkage is something I put together here.

[R8R]

I recently had an Enduro SM1050-2PF motor set up on my Juki 2810. I had a foot lift solenoid like that PF-2 and It plugged into the Enduro easy enough. The lift feature was great BUT I think the solenoid was messed up. (it was a takeoff from a well used machine I got in a factory sale) It made a high pitched noise when engaged and even had a faint burnt smell. Not good!

I ditched it and have since pulled the Enduro off as well, as I will be moving shop eventually and wanted to go back to a 115V motor instead of being stuck with 220V. Currently running an Artisan ACF-625C and a reducer pulley and that gives me *ok* control and needle positioning, so 2 out of 3 on my motor wish list. It doesn't have good modulation past a certain point though - the start speed is slow enough but at a certain point it jumps from slow to near top speed. So not zero to full but like instantly from 10% to 90%.

Annoying.

The SP-1100-NPFL looks awesome though. How is the speed ramp-up and is that adjustable? Can it crawl without a reducer?

[R8R]

On 9/12/2018 at 4:22 AM, R8R said:

I recently had an Enduro SM1050-2PF motor set up on my Juki 2810. I had a foot lift solenoid like that PF-2 and It plugged into the Enduro easy enough. The lift feature was great BUT I think the solenoid was messed up. (it was a takeoff from a well used machine I got in a factory sale) It made a high pitched noise when engaged and even had a faint burnt smell. Not good!

I ditched it and have since pulled the Enduro off as well, as I will be moving shop eventually and wanted to go back to a 115V motor instead of being stuck with 220V. Currently running an Artisan ACF-625C and a reducer pulley and that gives me *ok* control and needle positioning, so 2 out of 3 on my motor wish list. It doesn't have good modulation past a certain point though - the start speed is slow enough but at a certain point it jumps from slow to near top speed. So not zero to full but like instantly from 10% to 90%.

Annoying.

The SP-1100-NPFL looks awesome though. How is the speed ramp-up and is that adjustable? Can it crawl without a reducer?

Back to this thread to answer my own question... yes it can! Installed it a few days ago. This motor rules. Might have to go full tilt and get a new lift solenoid - I really like that feature on the Enduro but the solenoid I had was bunk.

[brmax]

R8R:  In the needle positioning function of that motor, I am interesred in the systems “ heel “to raise or bury the needle.

Can you discuss anymore into that. I had this prior to reduction Mods, although knew! this probably would not be an option afterward. 

So with some experience from your setup with these functions, Im sure curious to hear more about. If possible, please include any of the typical “ tap” to initialize a single stitch performance.

 

Thanks for the tips

Floyd