Timing on my Durkopp 239-125

[toxo]

7 hours ago, dikman said:

I just ordered a drop-down edge guide from Aliexpress, cost me about AU$26 delivered, which I thought was pretty good. I had to make a bracket to fit it to my machine but that was no big deal.

That sounds ok dikman. Which one? Always been  concerned about fitting a bracket to the curved underside. Any pics?

[kgg]

What size thread are you using in your machine, every machine has a limited and a sweet size that gives no problems. My Juki loves V92 top and bottom while it doesn't like V138 in the bobbin. I think your machine is rated for synthetic thread Nm 50,70,80,100 or V69 and smaller thread. Going above the rated thread size can cause problems of the top thread getting caught in the hook area as there may not be enough clearance between the larger size needle needed for the larger thread and the hook. May also explain why you have to jiggle the hand wheel a bit sometimes, depends on where the thread, needle and hook are in there cycle.

kgg

[toxo]

41 minutes ago, kgg said:

What size thread are you using in your machine, every machine has a limited and a sweet size that gives no problems. My Juki loves V92 top and bottom while it doesn't like V138 in the bobbin. I think your machine is rated for synthetic thread Nm 50,70,80,100 or V69 and smaller thread. Going above the rated thread size can cause problems of the top thread getting caught in the hook area as there may not be enough clearance between the larger size needle needed for the larger thread and the hook. May also explain why you have to jiggle the hand wheel a bit sometimes, depends on where the thread, needle and hook are in there cycle.

kgg

I was most of the way through a comprehensive answer to this and then it disappeared. I try again later.

[dikman]

Toxo, I just searched through Aliexpress until I found one that was reasonably priced (quite a bit of variation). They call them a suspended guide, by the way. There are two types, one is the "usual" fairly solid looking unit and the other is a cheaper flat steel type. As for the bracket, my CB4500 has two vertical mounting holes at the rear of the head so I simply made an L-shaped bracket to convert the vertical mounting to horizontal holes.

[toxo]

1 hour ago, dikman said:

Toxo, I just searched through Aliexpress until I found one that was reasonably priced (quite a bit of variation). They call them a suspended guide, by the way. There are two types, one is the "usual" fairly solid looking unit and the other is a cheaper flat steel type. As for the bracket, my CB4500 has two vertical mounting holes at the rear of the head so I simply made an L-shaped bracket to convert the vertical mounting to horizontal holes.

Thanks dikman. There's a decent looking one on ebay for around £16 that requires two holes where I have none so will have to drill and tap em.

[dikman]

Yeah, that's what quite a few do. Guess I'm lucky as being a new machine I don't want to be drilling holes in it (yet). I have no idea what the holes are there for but are very convenient.