Slippery fabrics are apparently difficult to stich, I have a recollection that I have seen sailmakers use double sided tape in some cases. I think a sailmaker doing spinnakers would know what to do.
I would say that this is a case where this advice is right for parachutes, old and new, but in the pantheon of things one can do to mess up a MYOG project, it rates way down the list. So far down the list that even people with hundreds of projects under their belts, and those who make a living selling tarps and hammocks, don't bother. Even tarps are not high strain the way that parachutes are.It is a problem if the straight stich thread is tensioned lengthwise with the base fabric. Zikzak stich generally is free of this problem as it is difficult to stress it all in tension.
I think I got this from some old parachute manual.
Basically it is good practice to use materials of equal stiffness in high strain structures because that is one way to avoid stress concentrations.
10mm seam should be fine. Small would be trying for 6mm.Thank you for all the advice. I have little interest in making anything like a hammock. My main requirement is bergen/pocket liners (waterproof) and pouches that I can make custom sizes for any bits of equipment, mainly simple drawstring style.
I've had another go at sewing the material and really not enjoying it...
The material puckers up , which is not the end of the world.
I'm finding it difficult to keep the material sewing straight, it just wants to wander off, Would I be right in thinking this is where a walking foot would come in handy?
Once or twice, the material pushed down through the hole where the needle goes getting all tangled up, I guess this is because I need a finer needle?
I am trying to keep my seams around 10mm and sewing close to the edge which might also be a bit on the small side for this material?
Sailmaker here. Yes we do use double sided tape but usually for sail material not spinnakers, (it doesn’t stick to some rip stop anyway)Slippery fabrics are apparently difficult to stich, I have a recollection that I have seen sailmakers use double sided tape in some cases. I think a sailmaker doing spinnakers would know what to do.
My experience with Ripstop is the material is mostly bomb proof however the seams are an issue and worth over doing. It has a massive advantage over standard nylon in that it stops those annoyingly easy rips.This material is not a pleasure to handle nor work with. It's such a lightweight material. I had no idea what parachute material would be like, but I assumed it would have been a heavier weight than what it is.
I'm going to use this little pouch, that I quickly made, for a while to see just how durable this material actually is.
Every bit of my camping kit is going to have it's own ripstop pouchWell done for persevering. A few more of those before you risk something big.