Constabulary

I of course cannot test this on all above mentioned (and unmentioned) machines - I just wanted to give an idea of how it "could work". As a sample - this is a 107W1 - this machine has a closed foot pressure screw and you have to shorten the presser foot bar and adjust the foot bar bushing. Conclusion - if you don´t like / dare tinkering on your machine - "Don´t do this at home" ! I guess you know what I mean....

I´m not sure if this is known but at least to me it was new that there is an adapter for retrofitting a roller foot to Singer needle feed and drop feed machines which have the "Split Presser Foot Bar". Usually this type of presser foot bars cannot accommodate roller feet. So with this adapter you can install roller feet like the ones you find for the Singer 31K / 331K and similar machines (works best with small diameter roller I think). Quick explanation - I restored a 51WSV2 last year and replaced the old presser foot bar with a dedicated roller foot bar - fortunately it had same diameter as the later Singer foot bars. And while looking for parts that could fit this very old but very nice machine I stumbled over a "supporting base" but the purpose was not clear to me at that time so I just ordered one to see what it really is. This is it: https://www.ebay.com/itm/Presser-Foot-Supporting-Base-Fit-For-Golden-wheel-Cs-810-820-Sewing-Machine/163656522197 It turned out that this is an adapter you can fit on the typical "large diameter" Singer split presser foot bars you find on many vintage Singer industrial machines and even some modern clones. Machines which have this type of foot bar are f.i. Singer 111w, 211w, 107w, 143w, 153w just to mention a few but it depends on the subclass and it only works for drop feed and needle feed machines. Good thing is you can use the standard feet that belong to the machine ex factory and put on roller foot when needed (but may depend on the machine you have). So this enhances the spectrum of use of certain machines. And maybe (have not tested this) you can even use the standard "garment" presser feet of the 31K and similar machines with this adapter. "Bad thing" is on machines with a "closed top" foot pressure screw you probably have to shorten the presser foot bar and have to adjust the presser foot bar bushing to achieve more foot lift - so it depends on the machine what modifications are required... So this may work for you or not and it may require "tinkering" (depending on your machine) and maybe it´s not everyone's cup of tea but it could be a workaround for one or two members here... I just wanted to share this. And this is how it works:

Please post some good clear pictures of your machine especially showing front and backside of the head.

That exactly was my point when I started tinkering with these binders... I tried em - they worked and I´m happy with em. As I said, I meanwhile have a few "el cheapo binders" and all work fine but have to be fine tuned / well positioned in relation to the feed dog and needle when I change them. But yet I cannot complain. None cost more than ~20-25 bucks or so. Now I even know I can do binding with leather tape - I learned something today Good luck with your work and let us see some results when your binder has arrive and is set up

Some close ups - the larger piece with white thread on bottom side is the 2nd try. The 1st try looks a bit better IMO so the problem sits in front of the machine And the video:

Keep in mind - I`m not used to run leather tape and my setup is probably not perfect for this task. I probably have top practice and the setup may need some fine tuning. I usually run thicker cotton tape through this binder but this should just give you a rough idea. Above pics show my 1st try. Video is the 2nd try I´m loading the video to YT so stay tuned - may take a while...

sure... wait... EDIT: Your binder hat to be closer to the needle... So it works for me but I´m not really into leather binding so this is just a quick test... 1mm very soft leather, cut to 19mm strips, #18 / 110 round point needle, #69 thread, my binder feet are knurled (for webbing) thats not ideal for soft leather I think. I will shot a quick video of how it looks when I run this setup with the leather tape and stuff...

Found another document (1973-74 Singer Parts catalog) and here the stitch length is stated with 5.1mm max. - funny how different information in official Singer documents can be. So the truth is somewhere between 4.5mm and 5.1mm Catalog also states the manual foot lift is 9.5mm - funny - I have sewn 12mm materials with my machine w/o pushing it.

You can adust the the foot lift on a small cam on the backside of the head. It´s marked H M L for High, Medium, and Low foot lift depending on the material thickness you want to sew. The "official" stitch length for the 29K models range somewhere between 4.5mm and 5.1mm (I have seen both mentioned in official Singer documents). On the 29K model you have a pendulum effect - meaning the thicker the material the shorter the stitches - thats normal. So when you are close to 5 SPI on thin material that is a perfect result for a used patcher of this type! EDIT: BTW - seems you have used the front hole for mounting the lamp. This is a "tool hole" for adjusting the small timing eccentric. If it was my machine I´d put the lamp on the back side.

If it helps you I can cut a strip of thin and soft leather (goat I guess) and run it through my binder...

Holy crap $434 / $335 is a lot of money. When you are using thin leather tape its all fine but at a certain tape thickens you may have too much drag so I guess you are making things like handbags, purses and so forth and you are using rather thin leather tape like 1mm thickens or less, right? Then cheap standard binder may work fine. The tape thickness really matters! When I set up my binder I had problems finding the right one for the tape width I wanted to use. Meanwhile the "cheap binder situation" became better but back then I had to modify my binders to suit my application. I do not have the output that would justify a $300 binder so I tinkered a little bit. I `m using cheap binders for flat bed machines and modified the bracket - works absolutely perfect. I meanwhile have several of the same type. This is the type I´m using. https://www.ebay.com/itm/SINGLE-FOLD-RAW-EDGE-PLAIN-RIGHT-ANGLE-BINDER-SET-S64-fits-JUKI-DDL-8700/122464240878 My Singer 108w20 usually would use a kind of "Pfaff 335 binder" but this is how it looks and I´m very pleased with it:

it would not surprise me when certain parts of the binder setup are interchangeable between the models - welcome to the clone world Upper front section of the Zoje 2628 looks very much "Singerish" to me, certain parts are typical for the Singer 111w / 153w machines. So I would suspect that the feet are Singer type too but of course I do not know for sure.

Ebay is your friend (sometimes) - check the links Badges: Singer Sewing Machine Badges Decals: Singer Sewing Machine Decals

okay - did not know they shut until Feb. 28. Wondering how many orders have piled up until then. Pretty sure you have dealers in the US who can supply these binders - maybe check with the known industrial sewing machine dealers who have adverts on top of this site. However - I think I have seen the "335 binders" for 18mm and 20mm tape but 3/4" is 19mm but I of course don´t know what else is available.

Worried because of Corona? Seems the virus will nor survive the transit. We had this topic here just recently... https://leatherworker.net/forum/topic/88680-suppliers-from-china/

If it was me (cheap Charlie sometimes and I like trial end error engineering ) I would try a binder like this for leather tape because I think it is not causing much drag due to the smaller body and shell. https://www.ebay.com/itm/Single-Needle-Binders-for-shoes-for-thick-leather-and-rubber-Material/153055486111 But you of course have to modify things because it is not designed for your machine. This of course is just a very "cheap sample". Another idea - check with LW member UWE - he sells some right angle binders binders that seem to fit your machines and I think he is able to tell you if they are suitable for leather tape or not: https://uwe.store/products/khf2s-tape-folder?variant=7012296622123 EDIT: regarding UWE and leather tape binders - check this thread:

Excellent work! Very impressive! Now you have to "invent" a 29K bell crank lever that never wears out and produces 6mm stitches...

Do not expect that all 3/4 binder can feed leather tape - a lot depends on the tape thickness and material it self. Most binder are meant for rather thin fabric tapes. Leather tape is critical and depending on the application often requires a custom binder. If the tape you want to use is causing too much drag the tape will either not feed or the stitches become shorter and / or the material you want to bind may stretch and the result looks odd. I guess you need a singe fold binder, right? If you need a double fold binder it would cause even more drag. So the quote from ATL (we do not know how much it was) may sound high compared with the $10 binders on Ebay but they for sure will work trouble free when you sent them samples of you leather tape. How much was the quote from ATL?

could also be that it is a JUki DCS 246 clone - if so It would not take Pfaff feet, then it needs Singer 111 type feet. Or do the Pfaff 335 clones take Singer feet too? Not speaking fo the other parts... So be careful. When the Company (Sewing machine dealer I guess) sold you this machine as a binder machine they should have it set it up like one and ready to use

Pretty sure some one would love these machines. I like the Class 17 / 18. Nice light duty machines! Consew still sells em as TE-6 / TF-6. http://www.consew.com/List/Lockstitch-Sewing/Cylinder?page=2 if they were mine I´d try to sell them in AU or JP - just because of the shipping distance.

to me it looks like a chain stich garment sewing machine.

That list is nice but just scratches the surface of differences between the vast number of 29 / 29K subclasses.There is a lot more than that. There are different gear boxes, pinions, racks, thread lever adjusters, needle plates and so forth.... Do not expect that ALL 29K parts are interchangeable between the subclasses - some are but the majority of parts are not - especially wear parts.

the inner foot has a separate foot pressure spring. Have you backed off it as well or just the outer foot?

Don´t know if and where you can find the original TU but If it was my machine and since it is a double needle machine I would try a Singer 112 or 212 tension unit.

please show a picture of the backside of your machine - I have an assumption BTW - the pin that attaches the needle bar seem to be kind of "oddly" modified. A few more pictures of your machine may be helpful.