Hi Jake,
In the 4 years that I did this, I can not think of any instance where 60cm was a limitation that I couldn't work around, although I am pretty sure there must have been one or 2.
The closest to a limitation was this one below:
Even this wasn't a problem as I did the circle in 2 halves, but could have been an issue if the van was bigger and they wanted a complete big circle.
I have done some window frostings, that would have been nice to have been wider than the 61cm roll that it came on. Ideally 2.5 to 3 foot would have been ideal, but they I would have had to have bought a 122cm roll.
If I really needed that extra 15 to 30 cm, I could have just cut another piece underneath and have a visible gap and make it part of the design. Perhaps have a 9cm piece then a 6cm piece then a 3 cm piece with gaps.
Software:
I used CorelDraw which costs around £400. This does quite alot more than I ever used. I think the Graphtec machine comes with it's own software, which I believe should be ok to get you started.
There are other software out there. I have used SignLab too, which is also good, but for me I stuck with CorelDraw as I was already familiar with it.
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