Image size in Photoshop

[AIFX]

I have been working on a design in photoshop for a racecar, and some of the filers that I have tried to use do not work because the system runs out of memory. I have tied to increase the memory available to photoshop and have done the history purge. I have 3gigs of ram in my system. At what PPI or DPI and at what scale are most people working at? I have read that full size at 72 DPI was OK. My designs are printed on a Mutoh Falcon. Thanks

[threeputt]

We work at 150 dpi, full size files. Good enough for most work.

[thewood]

For a car, 72 ppi should be sufficient.

[iSign]

if you are going to seam that graphics, you could work on sections slightly larger then your seamed panels... instead of working on the entire vehicle graphic in one file.
Also, I will often work smaller scale (but conscious of the need to remember, or write down the steps I have taken) until I like the design, & until my client approves it. this way I can design MUCH faster by working with managable file sizes.

3 gigs of ram is great, you must have a pretty fast processor too... do you have the scratch disc for photoshop on a different drive? That would be a good idea as well.

[Derf]

I work in Photoshop at 72 PPI or (150-300 PPI for small images that need filter detail) then save down to a 72 PPI (144 LPI ) file and print at 720x720 DPI and it looks great

[AIFX]

Derf, are you working @72PPI at full scale?

[advsign]

72 PPI is fine at full scale. I use 100 PPI incase I do need to inlarge something at the last minute to fit.
Ken

[Derf]

Derf, are you working @72PPI at full scale?

Yes, Most of the time.