Hi John,
Back in the good old days everyone worth their salt had a tangential cutter (Aristo, Gerber, Houston, Grafityp etc) and the really posh ones had a flatbed tangential such as a Zund.
Drag knife machines such as the original Roland Camm-1 became available and were quickly followed by Graphtec, Mimaki, Mutoh, etc. Biggest downside was slightly rounded corners on small text.
The salted few would look down their noses at the drag-knife brigade saying such unkind things as “now there’s a sign company that doesn’t cut corners”.
Maybe that was true in the early days but times have changed as you’ll know from using the PC600. Get your speed, blade offset and pressure correct and your t’s will be crossed and your i’s dotted to perfection.
Not sure what textiles you are cutting but the Summa T750 is a fine machine, that blade will cut accurately through almost anything. From memory it also has the ability to use a drag blade if you wanted to.
The OPOS I think is to do with their registration system for lining up contour cutting on colour prints. If you don’t need to do this then save the £250!
Don’t believe what you hear, SIZE is important. A lot of materials are fiddly to get hold of in 760mm widths as it sort of falls in between the standard 610mm and 1220mm sizes that everyone stocks. Depends on the cost of the kit, but might be worth considering the 1220mm version of the plotter – maybe more economical in the long run.
Chris