YES, everyone should get separate machine for print and cut.
The only time you need 1 machine to do both print and cut is when the design is not need to be dry properly and that only valid on thicker media.
If you cut a premium vinyl which usually about 2 mils, when doing bleeding ink of needed cut area ; the vinyl will curl due to the lack of drying time.
If you print a 4'x4' decal, and having bleed ink area that cutting blade need to go over the ink; you will have to wait until the ink dried up good before you cut it. And if you have to laminate the print first; it's dejavous again.
If you have to wait for the inks to dry anyway, you will have to take the media out, if you have other jobs to do. Then having to feed it back again later to do the cutting again.
Or another case, if you have to cut like 150-300 decals , your machine which is going through that many cuts will eventually need more frequent fine tune and print/cut calibration more often.
Graphtec 5000 series or above with ARMS, has amazing speed, and very innovative technology on media sensors; it can stop the cut job if the media is accidentally off-sensor; and still can get back to it and continue cut.
If you using print/cut machine as for doing prototype pieces for marketing and research, then a few piece here and there should be fantastic. But for signs business, you may want to consider production workflow of your print/cut case study; before you decide.
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