Jump to content

What Thread Size Is About 1Mm In Diameter And Can A 441 Clone Sew With It?


Recommended Posts

  • Members
Posted (edited)

From what I could find on the web, it must be slightly over size 400, but I am not sure which size exactly. 415?

Or is it actually a 0.9mm thread in size 400? It is hard to measure correctly as the caliper would compress it.

Would that be a proper thread for the holsters?

And the machine part of the question: the specifications for Juki 441 say it takes up to size 28 needle.

Do the clones take size 28?

I looked at Tecksew 5100 and it says size 27. Is it a 441 clone and will size 27 needle work with 415 thread?

Picture is of the thread I am talking about. It is 3 strand non-bonded nylon sold for saddle and harness repair.

post-62673-0-36552900-1440198473_thumb.j

Edited by DrmCa

Machines: Mitsubishi DB-130 single needle, Kansai Special RX-9803/UTC coverstitch, Union Special 56300F chainstitch, Pfaff 335-17 cylinder arm walking foot, Bonis Type A fur machine, Huji 43-6 patcher, Singer 99 hand cranked, Juki DDL-553 single needle (for sale)

  • Replies 23
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

  • Contributing Member
Posted (edited)

And WHY would it need to? Thread is far stronger than many people around here seem to think. A LOT of holsters are sewn with either 207 or 277 thread (or a combination of both).

Edited by JLSleather

JLS  "Observation is 9/10 of the law."

IF what you do is something that ANYBODY can do, then don't be surprised when ANYBODY does.

5 leather patterns

  • Moderator
Posted

It takes a needle and awl machine to properly tension #554 thread, or its equivalent 8 cord linen thread. A Campbell Randall, or Union Lockstitch machine can do it. Ditto for a Landis outsole stitcher (Landis F, G, etc).

FYI: I have sewn with #554 on a Union Lockstitch machine. It was a long time ago and I used my largest needle and awl combination:

Posted IMHO, by Wiz

My current crop of sewing machines:

Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.

Posted

I do all my holsters and belts with 277. NEVER had a thread break on any of them. I use a 25 LR needle.

The key to immortality is first living a life worth remembering.

Bruce Lee

  • Members
Posted

I use 207 for belts and collars...I am sure it would work well for holsters too. It is like rope compared to the V69 and V92 I use to make my military tactical gear.

  • Moderator
Posted

The thread I use in my Landis 12s is in the 500s somewhere and is very close to 1 mm. Believe me, it is rope compared to the V-346 I run in my 441. I've seen Cyclones run that stuff all day long, but I don't even have a desire to put it in my 441s.

Art

For heaven's sakes pilgrim, make yourself a strop!

  • Moderator
Posted

Basically, sewing with 1mm diameter thread (top and bottom) requires a combination of things to be true, as shown below.

  1. The machine must accept a large enough diameter, leather point needle to pass the thread. This is about a #30 (closed eye) needle for #554 thread.
  2. The shuttle mechanism (driver, race, shuttle/bobbin case) must have enough clearance for the top thread to go around the bobbin and its case, and out, without binding.
  3. The top tensioning and take-up components must be capable of exerting enough force and stroke to pull the 2mm+ (2 x 1mm) knots up inside the leather. Because such thick thread doesn't fold sharply, the total being pulled is more likely about 2.5mm.
  4. The take-up lever and associated cranks must be rugged enough to withstand this force.
  5. The presser foot pressure spring must be strong enough to hold down a stack of leather as the huge needle and thread ascend on the upstroke.
  6. The bobbin must be fairly huge to hold enough thread to sew your project.
  7. The motor will need to be very powerful and pulley'd way down and a 3:1 speed reducer will be required to punch through stacks of heavy leather with this large thread.
  8. The entire machine, including its shafts, bearings, cranks, screws and frame must be built with this type of heavy use in mind.

The only sewing machines I am familiar with that meet all these criteria are Randall Lockstitch, Campbell Lockstitch and Union Lockstitch needle and awl machines. It may be that some of the Landis needle and awl harness machines can also handle #554 or equivalent thread. Or, a heavy duty shoe sole machine would do the job.

Posted IMHO, by Wiz

My current crop of sewing machines:

Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.

  • Members
Posted (edited)
The top tensioning and take-up components must be capable of exerting enough force and stroke to pull the 2mm+ (2 x 1mm) knots up inside the leather. Because such thick thread doesn't fold sharply, the total being pulled is more likely about 2.5mm.

Wizcrafts,

I think the knots would be even larger. The top thread is forming a loop with two thread thicknesses being pulled up. And that loop is pulling up the bobbin thread that has two thread thicknesses being pulled up into the leather.

So there will be four thread thicknesses making up the knot.

With 554 thread that's 0.128", about 3.3mm even without taking into account thread stiffness.

Dan

Edited by dbusarow
  • Members
Posted

Was at the machine dealer today and he showed me Singer 144 (if I remember correctly - it's a 30" or so long arm walking foot with a boat outside foot installed) that according to him takes size 30 needle and can saw 4 layers of 10 oz leather with 554 thread.

He also said that size 28 should be enough and that I am welcome to come by any time with thread and leather samples and he would let me sew on that Singer.

I only had 2 tiny pieces of leather 3/4x4" with me and he said those are too small.

Machines: Mitsubishi DB-130 single needle, Kansai Special RX-9803/UTC coverstitch, Union Special 56300F chainstitch, Pfaff 335-17 cylinder arm walking foot, Bonis Type A fur machine, Huji 43-6 patcher, Singer 99 hand cranked, Juki DDL-553 single needle (for sale)

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...