Yet another printing issue...

[TH1955]

I'm a fairly new "GIMP" user (former PhotoShopper). I just finished my first "job", a pattern for cutting out a violin (Stradivarius ; "Messiah"). The pattern wasn't too hard to make, but it is larger than one A4 sheet of paper. Having read about the issues of others trying to print out larger pieces, I split my pattern in 2 halves and created two separate works to print out (and tape together afterwards). It worked fine.... except, the finished piece which should be exactly 358 mm long prints out to a total of 335 mm. There's nothing missing in the printout, it's just smaller than the image I created and measured multiple times with the measuring tool. Margins don't come into play as each half is far from any margins on the paper. Basically, it simply doesn't print out to match the dimensions that are showing both on the ruler guides and with the measuring tool. Any ideas of why it would be reduced? Thanks

[denzjos]

Do you get the correct dimensions if you save the drawing in GIMP and then print it with another program on the same printer?

[rich2005]

There are any number of posts about this.

If your image is in a A4 size canvas, say 2480 x 3406 @ 300 ppi and you print with margins, then your image is scaled down. Typically from 300 ppi to 307 -ish ppi and you cannot set to 300 ppi.

To avoid that, crop the image, smaller than A4 then when you come to print make sure the resolution is set to 300 ppi