Two needle sewing a seam like that using a standard home machine would not be the best approach. If you have a two spool/two bobbin threading system you would be alright. But TMK those are found only on specialized industrial machines. Home machines using a single bobbin zig zag the bobbin thread between the two needles resulting in a weak seam effective only for decoration and not for structural integrity. IMO a flat felled/modified french seam is a better choice for home use.
I may be slow... But I sure am gimpy.
"Bless you child, when you set out to thread a needle don't hold the thread still and fetch the needle up to it; hold the needle still and poke the thread at it; that's the way a woman most always does, but a man always does t'other way."
Mrs. Loftus to Huck Finn
We Don't Sew... We Make Gear! video series
Important thread injector guidelines especially for Newbies
Bobbin Tension - A Personal Viewpoint
Actually, it is a flat felled seam. The only variation is a slight change in the stitching to accommodate two needle, one pass sewing.Originally Posted by nothermark
+1
I'm in for a dollar!
Sounds as if easy (or hard) way to make money+1
I'm in for a dollar!
I've done some tests using my home machine, if to pre-sew somesort of grossribbon inside, it's actually not very hard. Though, it adds weight.
Here's what it looks like.
It would take 3-4x less time if I only had a special foot for this.
Using a tape that could hold and wouldn't mess up machine, would be OK also.
That could mean You wouldn't have to worry about fabric shifting also.
Using magnets to hold it together is also extra work...
Still, I'm open to ideas.
OK.
Would this thing work?
http://www.ebay.com/itm/UNION-SPECIA...-/300720920554
If it fits the machine that looks like the attachment that does the job.
BUT is the price worth it? That thing is worth more than it cost me for the material to make my tarp!
IIRC the owner of the sewing machine uses it to make backpacks so they'd be using a heavier material that than attachment will handle (it's rated for tarp/parachute material) so they likely wouldn't have any use for it.
If all you're doing is making your own tarp(s) doing a regular felled seam on a regular sewing machine will be more than sufficient. If you're planning on taking over your friends workshop and going into production then maybe!!
In this case I'll be thinking about going into production
In which case you should be talking to production sewing machine sales firms about what works best for your needs.In this case I'll be thinking about going into production
Yes, that would work. In fact it is the same design as was commonplace for decades as part of the stainless steel Griest (tm) kits. (Most of these were made for low-shank sm's. Will someone here sell me a high-shank version?)
Those haven't gotten much respect here, but I doubt anyone who expresses that didain has developed the skill through practice in using them. No different than with many tools and jigs, there,s a learning curve, and new tricks to learn and master. eg. Starting the seam.
It would appear that attachment screws to the bed. What difference would low-shank vs. high-shank make?
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