| HI everyone, | | We are using a Siemens ap-25 screen printer, in the past we have not had any problems with adhesive placement until a couple of weeks ago. It seems the x axis has decided that it should be set somewhere between .00085 and .00150. Normally the setting is .00035. Everyday the setting seems to change in order for us to get the proper glue placement... Has anyone had this problem before? | | Thanks | | Rob | Rob: I'm confused:
* I wasn't aware Siemens made printers. Could this be a branded MPM AP25? Is kind of a "clam shell" type printer that has the the frame holding the stencil hinged at the back of the machine? * What is this "x axis" adjustment that "someone has decided that it should be set somewhere between .00085 and .00150?" Is this downstop level? Down stop is machine (print head) dependent. It should be set wipe the stencil clean, but not deflect the stencil when the blades are not above the substrate.
Not knowing what I'm talking about and caring less, a lot of times people print "off contact" with clam shell type printers, because the machine doesn't lift the stencil straight off the substrate, but begins lifting the front and then continues lifting, until the back part of the stencil is off the substrate.
So, may be after you check-out the head, as Moondoggie suggested, you might investigate the mechanism that lifts the stencil from the substrate.
Good luck
Dave F
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