How can i activate foot lifter for 45k25

[depodarcom]

I have complated my singer 45k25 table project by cutting old fur sewing machine table. I attached the main body but how can I activate foot lifter .I couldnit find any clue from old writings.For new machines it is called as knee lifter I guess. What should I do for activating my machine chain shaped foot lifter?

[friquant]

Beautiful table!

A foot lift is activated by pressing down with your foot, a knee lift is activated by pressing to the right with your right knee. My Jiang Long came with both, but I had to ask how to install the knee lift. Here is the install video they sent me...the chain actuator reminded me of your singer.

 

 

Edited July 4 by friquant

[SARK9]

The simplest way would be by attaching the chain to a foot pedal, but you would probably have some real estate conflicts putting that on a treadle base.  Next would be adapting a knee lift pad similar to the typical ones used on machines like the Consew 206 and several others. There are a few different styles sold as aftermarket kits and you could work out the geometry to suit. A small air cylinder is also an option (I have several on various machines) but they are generally all the way up or all the way down NOW as in "ON/OFF" unless you go full MacGyver on the attachments. The knee lift kits are probably the best bet and can be as cheap or dear as you like.   -DC 

[depodarcom]

49 minutes ago, friquant said:

Beautiful table!

A foot lift is activated by pressing down with your foot, a knee lift is activated by pressing to the right with your right knee. My Jiang Long came with both, but I had to ask how to install the knee lift. Here is the install video they sent me...the chain actuator reminded me of your singer.

 

 

 

Thank you ..This seems good and useful for me. I am also searching for "stirrup" that is used for horse riding..

[AlZilla]

Unless you're going to sit at that machine, I think a knee lift is out. I have a broken bass drum pedal I'm in the process of adapting to operate the servo motor on a sewing machine. The "beater" is broken off, so I'm just going to attach the pedal frame to the table legs and attach the servo motor arm to the pedal.

Maybe this pic will inspire something.

Edit: I just saw your stirrup idea. That might work, too, if you could keep it from swinging all over the place. Maybe a chain guide of some kind down low, limiting it's swing. Great idea.

[friquant]

1 hour ago, AlZilla said:

I have a broken bass drum pedal I'm in the process of adapting to operate a servo on a sewing machine.

Ooooohhh...
Can you post links to the servo you're using for this?

[AlZilla]

2 minutes ago, friquant said:

Ooooohhh...
Can you post links to the servo you're using for this?

Just a nothing special bog standard servo from ebay:

https://www.ebay.com/itm/356814829633

It says it's 750 watts but I bet when it gets here it's 550.

It's got a 2 to 6 speed reducer already.

[friquant]

4 minutes ago, AlZilla said:

Just a nothing special bog standard servo from ebay

https://www.ebay.com/itm/356814829633

Is this to drive the machine or to lift the presser foot?
I thought you were going to use the kick drum lever to tell a separate servo to raise the presser foot. 

[AlZilla]

23 minutes ago, friquant said:

Is this to drive the machine or to lift the presser foot?
I thought you were going to use the kick drum lever to tell a separate servo to raise the presser foot. 

No, I guess I was unclear. OP needs to pull the chain for his foot lift. I'm suggesting he could engineer a pedal similar to what I'm doing to pull down the lever to control the servo motor on my project.

[Trox]

9 hours ago, depodarcom said:

I have complated my singer 45k25 table project by cutting old fur sewing machine table. I attached the main body but how can I activate foot lifter .I couldnit find any clue from old writings.For new machines it is called as knee lifter I guess. What should I do for activating my machine chain shaped foot lifter?

These types of stands had knee lifters, but since you don't have one a pedal attached to a tube around the tramp shaft would do the job.

[depodarcom]

Thank you to all members who responded this topic.

I will continue to try on, with the help of your suggestions.

[dikman]

As Sark9 said because it's a treadle machine there's no easy way to fit a foot pedal to lift the foot. Adapting a knee lifter is the only practical option that I can see.

[depodarcom]

With the help of this web site and your valuable suggestions,I have already completed my 45k25 table and knee lift projects.

 

I would like to thank member nickname “jimi” for sharing machine table size post at

 

https://leatherworker.net/forum/topic/74406-singer-45k-treadle-base-parts-information-or-parts-list/ 

by means of this subject I could reshape my old fur sewing table with jigsaw.

 

and also member nickname “friquant” for valuable video sharing . Even though I know knee lifter mechanism ,I could not  imagine application with chain, and watching this  video made my work.

 

I bought an original  Singer knee mechanism from one of dealers in my city,but I couldn’t find the hook like part,instead of this I used allen no 7 and 1.5 . I drilled a hole on 7 and inserted into allen 1.5  as “hook” for pulling chain mechanism.

 

I tried and it seems working. Thank you 👍

[friquant]

Wow, congratulations!
I've got a table coming to me this weekend with an old singer knee lift on it. Now I know what it will look like 😀

On my pfaff 545 I learned to grease the sliding plate that releases the tension discs when the feet are up...the knee lifter moved much easier after that.