Need some suggestions please..

[whitewater]

So we have a 6 head tajima, and a double head and single head tajima also.  The 6 head being the oldest model.

So jackets, fleeces and what have you stitch out well on the 6 head, but then when i put knit hats on its constantly eating them - birdsnesting.. and it just randomly picks a head and will just keep doing it.

I was told to double back them, so i did, and keeps doing it... now i triple back them, and still happens.

Everything else sews out fine, but its the effin knit hats.. they are fine on the single and double head though.  So im not sure what i am doing wrong??

[inkman996]

Start with bobbin tensions. See if their is a noticeable difference between the machines, loose bobbin thread or loose top thread can easily get wrapped up in the basket when doing loose fabrics. Check for flagging, make sure your pressure foot is coming up and all the way out of the fabric before the pantograph. advances to the next stitch, if it is flagging the you will get nesting. Usually when things are not cooperating and all the basics are checked we start slowing things down till something changes, if it still happens change needles, change thread etc.

[T Shirt Farmer]

triple check your thread path.

[whitewater]

triple check your thread path.

we have done that... its a different head each time.

ill check tensions

[BP]

What needle point are you using? On knit I would run a ball point.

[whitewater]

What needle point are you using? On knit I would run a ball point.

[Doug B]

  Besides slowing down as Inkman suggested, I always lay down a fill the same color as the knit hat to sew the design on top of. Looks a lot cleaner that way also.

[whitewater]

  Besides slowing down as Inkman suggested, I always lay down a fill the same color as the knit hat to sew the design on top of. Looks a lot cleaner that way also.

so that makes the stitch count much higher... so do you charge for that?

[Doug B]

  Not usually unless it is a large design. I increase the stitch length and lower the density because I don't usually need a real flat surface unless there is small lettering, so it doesn't add a whole bunch of stitches.

[Audifox]

Is this the size of needles you are using? Why so small?

I use 75/11 with no problems, and I do lots of knit toques and beanies.

[whitewater]

Is this the size of needles you are using? Why so small?

I use 75/11 with no problems, and I do lots of knit toques and beanies.

its what madeira recommended and also what the person used that we bought our double head from.

Maybe go to an 11?


UPDATE:  slowing the rpm down to 400 has helped.. 2 rounds and no birdnesting -

[Audifox]

It is something you could try, but if slowing down the machine is working, go with that.

[inkman996]

Wow just noticed what he is using. We do not use anything smaller than standard 75/11, we go up to as high as 90/14's My operator pefers larger needle for knit beanies and such. Out of curiosity what weight thread are you using with a needle that small?

Is the machine giving you angst the only one running those needle sizes?

[whitewater]

Wow just noticed what he is using. We do not use anything smaller than standard 75/11, we go up to as high as 90/14's My operator pefers larger needle for knit beanies and such. Out of curiosity what weight thread are you using with a needle that small?

Is the machine giving you angst the only one running those needle sizes?

#40 wt. from madeira

so i should be using larger needles on everything?  Ive had a tech here setting up the machines and never said a word on needles.

[whitewater]

Order all new needles and change them all out?  is that why we have a crap ton of thread breaks? LOL