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a 5' x 10' PERFECTLY FLAT table with a 5'x10' cutting mat with grid and a 109" Keencut Simplex (really looks like the former Javelin) or a 109" Keencut Javelin2
maybe try soaking a bit of the premask with Windex.. or glass cleaner. ... I sometimes spray it on the premask as it definitley does help the premask come off easier but you have a very small window time-wise for doing this cuz if you wait too long, your premask will come off in tiny pieces...
3/16" polycarbonate and you're done. No need at all for 1/4" (well, unless you're expecting riot abuse...)
I would never go acrylic on something that size.
doesn't matter how much or how little the expansion is... it only matters if the expansion is uneven enough to cause sufficient stress to cause breakage. Remember, glass is very brittle, relatively speaking and expansion, even a tiny bit, can induce some very powerful forces.
Same with reaching...
If glass is heated, it will expand... even if the expansion is slow and even... but when glass expands beyond the limits of the frame that it's in, it will break.
I would imagine that most windows are designed/engineered for some expansion -- but covering a window with a film (vinyl, paint...
Heat doesn't break glass, in fact glass can withstand any amount of heat. It's the by-product of applied warmth (absorbing heat from a heat-collecting material in contact with the glass) which is expansion -- namely uneven expansion or expansion beyond it's container (frame).
And it doesn't...
covering the entire window would likely be safer... the problem occurs when the sun strikes the vinyl and heats up the glass underneath and if the heating is rapid enough and the heat cannot dissipate evenly into the uncovered cooler glass, the glass will get stressed and shatter. That's why it...
I might have mentioned this before, but I once did a white Trans-Am up as a D.A.R.E. car for the local RCMP -- it had full official RCMP graphics and lights and kit plus a graphic for the sponsor of the car (the dealership that donated the car for a year). I was just putting the final D.A.R.E...
Is it possible you might need to Break Contour Group Apart the shape before cutting? -- Select contour shape by clicking on it (not the original shape), then Arrange/Break Contour Group Apart (or Ctrl-K) -- this establishes two separate shapes as opposed to one shape with an outline contour...
From the ON1 website: "Industry standard for photo enlargements using Genuine Fractals"
Looks like its actually the Genuine Fractals software that's doing the resizing -- so, if you already have that. We got it with a Microtek scanner.
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