Seiko STW-8B - question on servo with needle positioner

[Gregg From Keystone Sewing]

On 12/8/2018 at 2:47 AM, dikman said:

If you're going to slow the machine right down then to a large extent that negates the need for a positioner as you can control the needle position fairly easily.

You should be able to set any needle positioner for either stopping up or down, usually the controls will be "buried" in the menu system of the servo, so not just a matter of pushing one button. Some servos may allow you to set the pedal so that if you heel down on the pedal the needle will rise if the default is stopping needle down. Also, be aware that some needle positioners may not work if a pulley reducing system is also used.

Great information.  Quite a few motors do have a single button on the control panel that will allow for on the fly needle up/needle down positioning.  SP-1100NPFL and all the Efka motors comes to mind, and many some others as well.

[katit]

12 hours ago, katit said:

Thanks! I got it (file is not working here but I found link):

http://keysew.com/Webpages/DemoImages/USNavySinger111WConsew225REPAIR.pdf

Yes, looks like this machine as far as main timing goes - 100% or really close to match. What about reverse? Can reverse be adjusted after everything else? I just wanted to make sure if I go through all the process I won't have to redo it for setting reverse correctly.

Currently reverse lever knocking on machine body during sewing and reverse is pretty much sewing on one spot, definitely not "walking back"

[katit]

3 hours ago, katit said:

Yes, looks like this machine as far as main timing goes - 100% or really close to match. What about reverse? Can reverse be adjusted after everything else? I just wanted to make sure if I go through all the process I won't have to redo it for setting reverse correctly.

Currently reverse lever knocking on machine body during sewing and reverse is pretty much sewing on one spot, definitely not "walking back"

Never mind this! I think I know enough to be dangerous now. Uwe's videos on 111 machines have everything I need. If I find something that doesn't look the same I will post additional questions.

I'm really tempted to take it apart completely and do sandblasting/repaint.

[dikman]

I thought that with a couple of mine, but as they're working well I decided not to tempt fate!!

[katit]

2 hours ago, dikman said:

I thought that with a couple of mine, but as they're working well I decided not to tempt fate!!

I kind of think that it's one of the things every man should do in life Rebuild sewing machine.

 

Edited December 11, 2018 by katit

[R8R]

9 hours ago, Gregg From Keystone Sewing said:

 SP-1100NPFL and all the Efka motors comes to mind, and many some others as well.

SP-1100NPFL motor has to be the best value out there right now. With a 50mm pulley I think it's the perfect motor for any walking foot machine, especially for the price.

[Gregg From Keystone Sewing]

15 hours ago, R8R said:

SP-1100NPFL motor has to be the best value out there right now. With a 50mm pulley I think it's the perfect motor for any walking foot machine, especially for the price.

Agree, there is a lot to like about that motor.  

[katit]

Looks like I will be getting this motor, but first things first - need to take care of table (get it restored).

I asked buddy for some hardwood remnants but he actually had some maple butcher block and I got a nice 50x25 piece of a 1.5 inch thick block!

Now I have question about hardware. Bottom part is easy, just some nuts. Are those correct?? 3/8: https://www.amazon.com/LQ-Industrial-Furniture-Connector-Assortment/dp/B076WKTGMV/ref=sr_1_2_sspa?ie=UTF8&qid=1545091511&sr=8-2-spons&keywords=wood+nuts+3%2F8+25mm&psc=1

Next - top hardware. Table I got had those round hinges, which seems like "old style" hinges. On my other machine I got new "Euro" hinges. Are those interchangeable? When I put Seiko into my new table it was sitting little high it seems? Ideally I'd like to get kit like attached adn have it all nice and new.

 

[katit]

This becomes a "restoration" thread. I am not sure if I should start separate thread for this. I got piece of butcher block from my friend, he had 16ft board just laying in garage Got edges routes, glued pieces of wood. Today spent some time with router, all ready but will do cutout for belt and finishing after all pieces together and I can see it working. Routing wasn't bad, got it all done in less than hour. First I used forstner bits on corners and then just used clamped board as a guide. Tomorrow taking legs/parts for sand-blasting and going to order servo motor. I'm thinking this is going to be MY table and I will sell another machine. Not sure which one, but either this Seiko or my PFAFF 1245 will go.

 

 

[katit]

Almost placed order with Keystone for this servo motor sp-1100-NPFL but stopped due to $40 shipping

Makes it $300 motor, little bit too much.

Edited January 14, 2019 by katit