(Untitled)

[teffania]

At the Krae Glas craft hall it became obvious that the sunshade project needs a set of standard dimensions to make a standard krae glas sunshade. And we need them written before our next sewing day. I know what was proposed, but would like to tidy a few details.

The bits that need to be the same for everyone (the standard template), in order of us

Comments

[omnot]

I have a bit of brain-fail today, but wanted to throw in images of Stormhold Sunshades:

[teffania]

Thanks, that really helps.

I seem to recall sewing leather kringles for the sunshades. But that should be one of the bits of the Krae Glas sunshades where people can be free to experiment without stuffing up others, but I'm sure we'd like to know how various kinds perform under stress.

I feel justified in worrying about the amount of slack in the sunshades - the surveying expedition photo has a drape height of approx 2 heads (60cm?), which is double my estimates, and yet no one had fixed it and it was an effective shelter. Even the better pitched photos tend to have half a head to a whole head of slack in one direction, even though annother direction might be fairly taut.

And yet, on the other hand, everyone seems to find the stormhold sunshades practical and useful, even though the taller people must be perpetually ducking, and at the surveying expedition eveyone but the children must have been ducking.

[doushkasmum]

The Stormhold sunshades have leather cringles for sure. My exprience of metal eyelets tells me that the leather cringes are well worth the effort as the metal ones break and work out of the fabric fairly quickly. The more period look is a bonus but they are much better wearing. I suspect that Rodrigo can tell us the exact measurements. He did the cutting out. If you want to chain them together the distance ground to pole and pole to front is fairly important as even a small variation shows as sag.

[teffania]

I expected metal ones pulling out would be the problem, but haven't had experience with actually using them in a medievla camping application. I know in the old army tents we had in guides they had seldom pulled out after decades of wear, so it must be theoretically possible to place them well, but I think we lack the expertise, canvas quality and eyelet quality.

Do you have any docco on the leather ones, or is it just sensible guesswork along the lines of plausibility?

small variations - are you thinking in the order of 2cm or 10cm?

[teffania]

Saving for me for later (maybe I'll even write up somethign later)- useful links

[celsa]

Guy rope and tent placement? My instinctive ideal for securing a sunshade is to make an isosceles triangle between the ground, the peg and the attachment point. plant the peg at a 45 degree angle to the ground *or* at 90 degrees to the pull of the rope, depending on the situation and the peg. It's rarely practical to do that, but getting as close to that as is convenient is my default technique.

Placing the peg closer to the tent saves on footprint and can easily be gotten away with in good conditions (low wind, good peg-gripping ground) and double-roping helps where footprints must be kept small but more secure attachment is desired. Bigger, better pegs well driven in really help a lot.

[teffania]

I was actually taught what you do instinctively, although if I hadn't I'd probably have done it so anyway. So where are the guidebooks that actually explain it that way? And why hasn't someone written an article explaining how it's a wonderful practical application of vectors? Surely there's just something I can link to instead of having to explain all that. Drawing diagrams takes time.

[teffania]

SO does anyone have an opinon on the poles? both the same or different heights?