Consew skiving machine has 3 small chips missing from blade

[RockyAussie]

9 hours ago, JeannieH said:

There isn’t anything under your answer. If you give me the name I can search it on YouTube. I’m on my iPhone so maybe it appears on the computer. I will check.

This link should take you to one that is relevant.

 

8 hours ago, JeannieH said:

Is there a way I could control the stone and blade separately? I wish the blade could just be turned on and I could control the speed of the stone...if that even makes sense to do that...

If all is working well the clutch should give you a good controllable feed through. Does your bell knife not run at a speed continuously?

[JeannieH]

There is a servo motor controlling the knife and roller.

[RockyAussie]

1 minute ago, JeannieH said:

There is a servo motor controlling the knife and roller.

So when you stop the bell knife stops as well? I had a very old Frobana that did that with a clutch motor and Note I said the word had. That is not to say that a servo motor can not do it though. The servo on my large sewing machine allows a great range of speed variation. I have heard of people splitting the drives onto 2 servo motors and in time that may be something to consider. I will say that a roller foot will give you better control as my video should show somewhat. The friction of the standard feet do hamper the smooth feed.

[JeannieH]

Ok I watched the video. I definitely will get a roller foot. Yes it stops when I stop pressing the pedal. I will give t some time and figure out how to separate the two. Right now it’s doing what I need so I won’t mess with it. Do you have videos on different techniques making leather purses on your YouTube? My problem areas are straps for some reason! 

[JeannieH]

Hate to keep bothering you guys but I’m about to lose it. I’m working on a bag I just made a pattern for. This is just a test to make sure my pattern works. I skived the gusset and the front and back piece will be sewn overlapped with the edges painted. So I keep getting skipped stitches. My machine is timed that was the first thing I checked. I changed the needle a few times..right now I have a #16 or 18 tri cut needle. I retreaded...I adjusted the feed dog..put more tension on the presser foot...I’m still getting skipped stitches. I have been taking the thread out and going back over in the same holes..still skips and once it skipped almost every stitch! I got a scrap of the same leather... no skips. I made sure not to get any glue where I would be stitching...I’m out of ideas. I will have to hand stitch the rest because I’m tired of redoing it. I have attached pics of the bag inside and out. 

[Ferg]

I might be blowing smoke, I think your needle is too small. The thread will often slide through a too small needle but gets caught up every once in awhile and skips.

Ferg

[Northmount]

Another possibility, are you lifting the presser foot too high when going around corners?  That can lead to skipped stitches.  Also, make sure the needle is done and has started to rise before lifting the presser foot to navigate around corners.  Too high a lift lets the top tension go.

Tom

[JeannieH]

Ok I what needle size do you recommend for 4 ounce? I will be mindful of the presser foot lifting. I sewed the other piece onto the gusset and I got a lot less skipping...just 4 spots...maybe glue got in the way? I would think the machine could sew through a little dried glue though.

[RockyAussie]

I think the where your seam is finishing and where your presser feet come down are not working right. If this is your walking foot cylinder with the wobbly dog foot then that may not be helping. On a flat piece of leather probably no problem but with that step and perhaps how you hold it may have to change. That step is trying to push the leather away in toward the machine and and this allows the needle to flex in that direction and then the hook misses the loop. Thicker needle should help a bit as it would resist flexing more but I think a reduction in pressure of your outer presser foot would help as well. Try sticking a thin strip next to the join step and see if that stops the miss.

[JeannieH]

3 minutes ago, RockyAussie said:

I think the where your seam is finishing and where your presser feet come down are not working right. If this is your walking foot cylinder with the wobbly dog foot then that may not be helping. On a flat piece of leather probably no problem but with that step and perhaps how you hold it may have to change. That step is trying to push the leather away in toward the machine and and this allows the needle to flex in that direction and then the hook misses the loop. Thicker needle should help a bit as it would resist flexing more but I think a reduction in pressure of your outer presser foot would help as well. Try sticking a thin strip next to the join step and see if that stops the miss.

Yes it’s the same machine with the wobbly dog. What do I need to replace to fix that?i have the screw tightened all the way on the feed dog...when you say step..what are you referring to? I’m not sure I understand.