to work like that U must pre setup machine with cover. IMHO it's must be roboarm and with screwdriver set somethin like "in, allow out" or "out, allow in"
AND if U look on 6th pic and then again on 2nd&5th U will see that inrefaces connect to machines AND 2 other interfaces so it confuse them. smack them with wrench to show arrow (for U arrow must look down)
Well I found out the cause of the problem. Yup I forgot about using the screwdriver to set all my machines to "input from output side allowed". No covers and roboarms are required though.
I don't think the interface direction makes a difference in this case, but I went and did it anyway.
@Jason McRay Assembler works perfectly fine when I tested it. Didn't try the packager though.
Edit: It seems that to configure i/o settings for GT machines, the screwdriver must be used on the front face or output face of the machine. Correct me if I'm wrong.
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