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gottaknow

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About gottaknow

  • Rank
    Leatherworker
  • Birthday February 12

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  • Gender
    Male
  • Location
    Washington State
  • Interests
    Art, music, sewing, photography, gardening

LW Info

  • Leatherwork Specialty
    Industrial machines since 1980. Facilities and Mechanical Ops Manager for Outdoor Research
  • Interested in learning about
    ironicly, hand sewing, leather carving and stamping
  • How did you find leatherworker.net?
    friend

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  1. Unfortunately no, the arm is just wide enough for an inline folder since it has to run inside sleeves. Also, any folder used on these machines should be spring loaded on the top half to allow a previously sewn lapped seam to pass through. Oh, and howdy Wiz. Regards, Eric
  2. On the curves, the fabric will want to walk out of the folder. Shove more fabric than you think you need into to folder. Lining up your seams takes practice as well. The bottom will want to continue to feed while the top will hesitate. Make sure your presser foot is moving high enough to allow the thickness of the stacked seams. Hold back the bottom ply and don’t pull on the top ply. Lastly, experiment with sliding your folder back just before crossing the seam and with the needles down, lift the presser foot slightly and push the top ply into alignment. It takes practice. Regards, Eric
  3. The little bit of tail thread stuff is normal. You can use smaller needles without doing much. Size 16 should be fine. The difference between the SH machine and lighter weight machines is the feed dogs and throat plate. That direct drive is a great motor. The hook oiler adjustment is common. After the machine is well broken in, you’ll probably need to dial it back a bit. Regards, Eric
  4. That’s a great machine, we have 50 of them in our LA factory. I’ll find a link for the manual you’re looking for. The length of the tail thread is controlled by the pre-tension. It should be 30-40mm long depending on thread and tension. It will vary. Regards, Eric
  5. I would drop the needle bar down and use the 135x17 needles. Easiest way to do this is to rotate the hook point into the scarf of the longer needle, remove the long needle and make sure you don’t turn the handwheel. Insert a 135x17 needle, then loosen the needle bar clamp. Tap the needle bar down until the scarf of the 135x17 is centered at the hook point (which hasn’t moved), tighten the needle bar clamp screw and you’re done. Regards, Eric
  6. Hello Gottaknow,

    I just joined Leatherworker last night. This weekend I bought a 211G155. I intend to use it for thick leather work. I have only run it one time since I’ve had it home and haven’t even threaded the needle yet. You seem knowledgeable of this machine and I’d like to ask a few questions.

    Can this machine be slowed way down so I can creep along? Currently it flies when I give the slightest pressure on the peddle.

    Is’nt this a walking foot machine? Currently both feet lower at the same time and it doesn’t seem to walk.

    What is the thickest thread that I can use for thick leather work?

    What is the best resource for thread and needles?

    I’m missing the bobbin slide plate to the left of the needle. Is this available somewhere?

    Thank you for any help you can give me.

    Vic

  7. The tube that runs from the oil pump to the top shaft can end up against the shaft that actually drives the pump. In time, it will cut through the tube. If you keep an eye on the sight glass, the oil should bubble up indicating the tube is intact. For a visual inspection, you can remove the back cover and actually inspect the small, clear tube. Regards, Eric
  8. If the hooks are sharp and set correctly, no need for right twist thread on the left needle. Regards, Eric
  9. This machine will be a lot happier with top thread being T135. Regards, Eric
  10. Bonded nylon is specified for the vast majority of tactical items for the DOD. A company I used to work for had a contract for suede welding jackets. Chrome tanned leather with Kevlar thread. The Kevlar thread isn’t bonded and it’s like sewing with dental floss. Your hooks have to be sharp and set very precise or it will fray while sewing. A buddy of mine that has been making hot air balloons since the 70’s uses UV rated bonded polyester which is about the nicest thread I’ve ever used. Strong like bonded nylon, but with a much softer hand. Sews like a dream. Regards, Eric
  11. The company I work for is a DoD contractor. Everything we produce for them has to be Berry Compliant. This assures US made textiles, including all the raw materials. I began working in a sewing factory in 1980, even then companies were exploring overseas options. The price of industrial machines has little affect on our bottom line as the ROI is very quick, long before the typical depreciation period. We also bypass the US dealers at a substantial savings. For the home hobbyist, a much bigger impact. We do import the vast majority of our non tactical items in order to compete in a very competitive market. NAFTA hurt the US textile businesses but it was the low overseas labor costs that really sank our ship. Regards, Eric
  12. Love the ZeroMax. When run continuously, additional cooling is a must since they are entirely enclosed. Their endless configurations make them very usefull in a factory. They are however no joy to take apart to change a bent shaft (pretty common). Regards, Eric
  13. Not that I’m aware of. A properly adjusted old school clutch motor is an excellent variable speed motor. Regards, Eric
  14. Juki’s come out of many different factories. Some are still made in Japan, most in China. Garment machines require lube that can be cleaned out of fabrics with an atomizer gun and solvent. Most lubes don’t meet this requirement so you end up with a bunch of oddball stuff nobody recognizes. The dry head system was developed because the machining tolerances are poor on the Chinese units, they couldn’t keep oil in the heads and it was costing factories a lot of money for cleaning sewn goods. They sold the catch phrase dry head when it should be called “we can’t keep the oil in”. The different lubes are likely a result of regional factory locations. Juki A is your best bet, it’s the most common over all their many classes. Regards, Eric
  15. A decent alternative lube is TriFlo grease. It’s a touch thinner than white lithium, but soooo slippery. I like it for used machines because it will loosen up a dry head making it quieter and smoother. It also doesn’t get pushed out with rotating components like thicker lubes do. Regards, Eric
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