Still in binding torture!

[toxo]

Still trying to get the binding sorted out on my 341 clone. Got the swing away binder holder and the alternate front plate and feed dog but still can't get it to work.

First let me explain what I'm trying to do; Want to use thin leather rather than tape. Have lots of upholstery leather in lots of colours for contrast. Want a double fold to leave a nice turned edge.

First problem was couldn't get the swing away attachment to get into position without removing the bobbin slide cover. 

Then, after a lot of fettling o get the binder in line, I thought I'd cracked it.

Then I turned it over and found this. Two things here, Firstly note my secret decorative stitching  and secondly, the holes in the black stuff are from a previous attempt.

The problem now is what to do with the holder to get a balance on both sides. I'll keep trying but wondering if the holder needs modifying or do I look for another?

I have to say there's precious little help online. Not even a cut size for a given thickness of material for singl or double folds. As usual all the Youtube videos use the basic easy stuff. Any advice would be extremely welcome. Thanks.

 

[DieselTech]

33 minutes ago, toxo said:

Still trying to get the binding sorted out on my 341 clone. Got the swing away binder holder and the alternate front plate and feed dog but still can't get it to work.

First let me explain what I'm trying to do; Want to use thin leather rather than tape. Have lots of upholstery leather in lots of colours for contrast. Want a double fold to leave a nice turned edge.

First problem was couldn't get the swing away attachment to get into position without removing the bobbin slide cover. 

Then, after a lot of fettling o get the binder in line, I thought I'd cracked it.

Then I turned it over and found this. Two things here, Firstly note my secret decorative stitching  and secondly, the holes in the black stuff are from a previous attempt.

The problem now is what to do with the holder to get a balance on both sides. I'll keep trying but wondering if the holder needs modifying or do I look for another?

I have to say there's precious little help online. Not even a cut size for a given thickness of material for singl or double folds. As usual all the Youtube videos use the basic easy stuff. Any advice would be extremely welcome. Thanks.

 

Are you using a double fold binder? & what size binder is it?

[toxo]

1 hour ago, DieselTech said:

Are you using a double fold binder? & what size binder is it?

It doesn't really matter what the size is. It's determined by the thickness of material you're binding. The question is how to ensure that both sides are equal. the binder in this case is a 36mm double fold.

[dikman]

Can you run the binding leather through by itself to see if it's actually folding correctly? Maybe trying to do a double fold with leather is asking too much of it?

[Constabulary]

maybe wet binding leather performs better, just a guess

Edited yesterday at 04:47 AM by Constabulary

[kgg]

23 hours ago, toxo said:

Want to use thin leather rather than tape.

 

Couple of questions:

1. How thick is the leather you are trying to bind with??

2. How thick is the leather you are trying to put the binding over??

3. What is the total thickness of the edge including the binding.

3. Are you using a 90 degree binder or an inline??

I suspect the problem is that there isn't enough space within the binder attachment to allow for the 5 layers of leather, the edge of the article and 4 layers of binding leather. I have seen this happen when using a basic inline binder and the problem was easily fixed by bending the the top part of binder up slightly and opening the exit end up. If you are using a 90 degree binder the exit end is fixed which I don't think can be modified and the largest opening I have seen is like 6mm. 

I think using a inline binder would work better or have a 90 degree binder custom made. The problem with the inline is that there are not any that I know off that can be mounted directly to a cylinder arm and none of the table top attachments allow for accessories to be mounted to them like edge guides or binding attachments. Me being me and a cheap geezer I 3D print my own table top attachments to allow for this. 

kgg 

[toxo]

1 hour ago, kgg said:

 

Couple of questions:

1. How thick is the leather you are trying to bind with??

2. How thick is the leather you are trying to put the binding over??

3. What is the total thickness of the edge including the binding.

3. Are you using a 90 degree binder or an inline??

I suspect the problem is that there isn't enough space within the binder attachment to allow for the 5 layers of leather, the edge of the article and 4 layers of binding leather. I have seen this happen when using a basic inline binder and the problem was easily fixed by bending the the top part of binder up slightly and opening the exit end up. If you are using a 90 degree binder the exit end is fixed which I don't think can be modified and the largest opening I have seen is like 6mm. 

I thick using a inline binder would work better or have a 90 degree binder custom made. The problem with the inline is that there are not any that I know off that can be mounted directly to a cylinder arm and none of the table top attachments allow for accessories to be mounted to them like edge guides or binding attachments. Me being me and a cheap geezer I 3D print my own table top attachments to allow for this. 

kgg 

I don't think that's right Keith. Take a look at these pics. Same 1.6mm leather but too far from the edge. The binding is 0.7mm and I have all sorts from 0.5mm and up. It was after manouvering to correct this that things went wonky. Can't get consistentcy. Obviously if using thicker leather a different folder is needed. This one is 36mmright angle but I'm not after binding 1,6mm leather, I have a 45mm and a 50mm coming and don't have a clue where they'll take me. The whole thing started with me wanting to bind two pieces of bag leather but as I say, no-one is sticking their neck out to say what type/size binding for what thickness of leather so it's very much trial and error. It's a good job I like pottering and have some patience. A big part of the problem is that I can't get the binder where I think it's supposed to be and at the moment, to get everything lined up it has to be further

away than I'd like but the edge guide helps and as you can see it sorta works. The big question is how to angle the binder so both sides are equal????

[kgg]

3 hours ago, toxo said:

Take a look at these pics.

What I'm seeing:

First photo: 

i) Stitch length seems different The stitch length seems to be smaller on the right then on the left.

ii) Loose stitch on the left.

iii) skipped stitch on the right side.

iv) Distance to the edge of the binding fold over varies slightly. This probably is being cause by the leather piece either not having a straight edge, not being feed into the binding folder just right, a slight downward pull being applied as the item goes over the backside of the cylinder arm causing a slight shift or a pressure foot slightly off. 

Are you holding both threads when starting the seam???

Are you using a table top attachment while binding?? It would help in feeding the leather into the binder.

As a note I set my binder so it is just leaves a very small space, a couple of mm, between the forward position of the pressure foot and the binding attachment.

Any photo's of your binding setup may help.

 

kgg

[Northmount]

@toxo I moved your post to Leather Sewing machines.