Singer 45K Open & Closed Frame Shuttle - Whats The Difference???

[Constabulary]

Alex - check if there is dirt / lint / wax under the tension spring... I also successfully bent back the tension spring at the top end where the screw goes through...

[alexitbe]

Thanks Constab,

 

I will give that a go and also start another thread so this one does not go too far off topic..

 

Cheers

Alex

[jimi]

Hi Alex, maybe the spring has a wide opening for thicker thread than the one you are trying with??? just a thought? when i tried with bonded nylon thread i had to change the shuttle as the one in it had the tension spring for thicker thread and would not hold the slippery nylon one.

here on the right the tension spring has a bigger gap for the thick thread, on the left the new on is smaller.

the first picture is the cheap ali express shuttle in the race so it might work after grinding? second picture is to show that there is a bigger gap where the pin holds the bobbin cover, so if you grind it down you might have very little metal there. the third picture is of another 45k type shuttle of better quality with the gap smaller like the frobana shuttle but it has that small cutaway right near the tip which would not leave you any meat up there??? hope this helps..(just in case you were going to try another shuttle)

https://es.aliexpress.com/store/product/SEWING-MACHINE-SPARE-PARTS-ACCESSORIES-HIGH-QUALITY-SEWING-SHUTTLE-HOOK-DD1-98622-FOR-SINGER-45K/118575_32602597834.html?spm=2114.04020208.3.69.t2B6JI&ws_ab_test=searchweb0_0,searchweb201602_5_10152_10065_10151_10068_10084_10083_10080_10082_10081_10301_10110_10136_10303_10137_519_10111_10060_10176_10112_10155_10113_10114_437_10154_10056_10055_10054_10182_10059_303_10184_100031_10099_10078_10079_10103_10073_10102_10109_10052_10053_10142_10107_142_10050_10051,searchweb201603_49,ppcSwitch_5_ppcChannel&btsid=a302ed45-d769-457b-872b-2dd6e12c63b1&algo_expid=ca5a58fd-8ec2-4655-acb3-0c1959ba2955-9&algo_pvid=ca5a58fd-8ec2-4655-acb3-0c1959ba2955.

Edited July 2, 2017 by jimi

[sandyt]

Whoa..... what a coincidence! I just finished grinding an old alder hook for my Gritzner. I thought I would just give it a go. It came with a machine a while ago. Very worn, so I wouldn't mind if I destroyd it. It works great!

It's an open frame. But I can't think of something why a closed one wouldn't work. I bet it would. Enough clearence etc...

Sandy.

[sandyt]

[sandyt]

[alexitbe]

That's really impressive... Where exactly did you have to grind down? From my understanding Jimi was talking about the bit of the shuttle that slot in to the race and is pinned there.  I guess he  was talking about fitting a new shuttle to an old race.

 

Would I be right in thinking that you fitted a "new" shuttle and race to the Frabans and simply ground the race to match the old Frobana...  is that correct?

 

In case someone is interested i have found a source of shuttle tension springs here:

http://www.ebay.de/itm/Shuttle-Hook-Thread-Spring-Singer-45K-DURKOPP-61-62-Sewing-Machine-Closed-Frame-/272392847123?hash=item3f6be0ff13:g:z7EAAOSwLF1X6v3a

[jimi]

sorry alex i maybe should have explained better 

this is where it might get too thin on some shuttles.

[sandyt]

I think you are calling the hook/frame the race. The race is bolted to the machine. The shuttle-hook assembly goes into the race. It oscilates in the race.

Now I am thinking about it, I am a little confused now. What is the hook and what is the frame excactly? Is the hook, part of the frame? 

I think I ground the frame? The left picture is the 'original' that came in the machine. The right picture is an adler shuttle-hook assembly. You can see where to grind now?

Sandy.

[Darren Brosowski]

The frame forms the hook!

The hook is, in secret technical terms, "the pointy bit"