I'm new in the vacuum infusion so I have a few questions.
I want to make a composite part and for the female mold I'm gonna use a fire scale diam. 80 cm. depth 14 cm. I had the idea to make a box around in formica so I have a flange to attach the vacuum bag. Can you give me some advice about the position for installing the vacuum and infusion line. Do I place the infusion connector (with or without spiral tube) in the middle of the part or on the flange? For the vacuum line, is a connector enough or better in combination with a spiral tube?

Hanaldo is spot on (as usual!).  Keeping the distance to a sensible level will help.  The shape is also a big factor in terms of where the resin is likely to flow.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant