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  • Just wondering have anyone tried to build two/three same boards in parallel of one SMT line...

Just wondering have anyone tried to build two/three same boards in parallel of one SMT line...

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Joe

#85979

Just wondering have anyone tried to build two/three same boards in parallel of one SMT line... | 8 December, 2020

I have a typical SMT line setup with three machines, two Yamaha YS24s, and one YSM20. A simple board with only three components, four placements, but a large order quantity. At the moment, the line is only using one machine to place all the parts with the rest two on bypass. Instead of utilizing one machine for the job on the line, is there a way to build two or three boards in parallel? I thought of using Bad Marks but realized it is quite hard to manage. Any ideas?

Thanks Joe

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#85983

Just wondering have anyone tried to build two/three same boards in parallel of one SMT line... | 9 December, 2020

if you can set bad mark white=good on first machine, black=good on second machine and place same 3 components on them then all is left for 3rd machine not to look for bad mark but just to place remaining components. is board panelized? do some math and see how much time PCB IN and OUT takes time and what would be actual machine uptime with this setup. maybe dislocating one machine and running them all as stand alone is better option. hope it was helpful.

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#85985

Just wondering have anyone tried to build two/three same boards in parallel of one SMT line... | 9 December, 2020

The only way you can help it is to make panel as bigger as possible. In cases like yours, shorter line will have the advantage Printer->Machine->Conveyor link-> Oven

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#85992

Just wondering have anyone tried to build two/three same boards in parallel of one SMT line... | 10 December, 2020

Unless the boring big job is conveniently in a panel the same size as the other jobs you want to put through you really need to break it into 2 lines surely? Anything else is just a pain to manage.

Longer term you could look at getting another Yamaha machine that uses the same feeders to setup a simple products line, should be something 2nd user you could pickup and implement pretty quickly if pushed. If you think this is something you might see come up again and again, maybe dual lane might be an option?

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#85997

Just wondering have anyone tried to build two/three same boards in parallel of one SMT line... | 11 December, 2020

I don't completely understand your set-up, or what you mean by "in parrallel", but here is what I do.

If you mean to have the 3 machines each build part of the board, this is what I do. I have two machines in one line and I split the job between the two. Basically I load the same job program on both machines and I "short" certain parts in machine 1's program, and then "short" the opposite parts in machine 2's program.

If you are trying to have each machine build a whole board, as if it were 3 separate machines, turn off the SMEMA and load boards separately into each machine.

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#86000

Just wondering have anyone tried to build two/three same boards in parallel of one SMT line... | 12 December, 2020

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