Electronics Forum | Thu Jun 14 11:43:52 EDT 2001 | gsmguru
Change times for the Rheo pump are probably a little slower than just swapping blades. You have to hook up the sensors & air lines,remove the bottom cover + charge the pump to get it to operating pressure before you can print. I would guess that if y
Electronics Forum | Thu Apr 12 08:14:43 EDT 2018 | cyber_wolf
The way to determine correct pressure (in my experience) is to start out at what you would consider to be a low sq. pressure setting. You are looking for it to leave a slight film of paste on the stencil. Start increasing pressure in small incremen
Electronics Forum | Wed Apr 19 10:27:30 EDT 2006 | russ
Look at your paste specs, they give you recommended starting points relating to speed and pressure. Dave F is right, it is usually about 1 pound per linear inch of squeegee length. Speed for finepitch printing should be started at about 1in/sec. T
Electronics Forum | Tue Apr 18 19:48:08 EDT 2006 | davef
There is no standard, nor should there be [because the IPC standards should be aimed at describing results, not the path used to reach the results]. So, your printer equipment supplier recommendations are a good starting point. Your "35-46 lbs-in"
Electronics Forum | Fri Apr 02 22:01:19 EST 1999 | Dean
| Anyone knows what is the optimum squeegee angle for screen printers. | | 45 Degrees. The forward velocity creates a downward pressure equal to the vector pressure (equalibrium). This is commonly known as paste "rolling action". Too obtuse an an
Electronics Forum | Tue Apr 06 10:30:48 EDT 1999 | Scott Davies
Tony Although I agree in principle with Dean that 45 Degrees would be ideal, most of the squeegees I have worked with have been 60 Degrees to the stencil surface. This seems to work best with metal squeegees when printing HASL boards, because the sl
Electronics Forum | Wed Apr 07 11:42:16 EDT 1999 | Tony A
| Tony | | Although I agree in principle with Dean that 45 Degrees would be ideal, most of the squeegees I have worked with have been 60 Degrees to the stencil surface. This seems to work best with metal squeegees when printing HASL boards, because
Electronics Forum | Thu Feb 14 13:10:58 EST 2013 | markhoch
I had this problem once a loooooooong time ago with a 248 that was at my previous place of employment. If I remember correctly, my issue was caused by a set screw on the drive gear that had worked itself loose. My issue was stright forward and quickl
Electronics Forum | Wed Apr 11 21:06:49 EDT 2018 | jacobidiego
Hi experts, I have some stencils in a bad state. Some of the marks belongs to squegee operation. I wonder if it is possible to measure the pressure that is being applied, as we can set the pressure, but we don't know if that value is real and calib
Electronics Forum | Mon Jun 19 12:46:11 EDT 2023 | daniel_stanphill
And I can set deposits down to 34 um on our my500. I do not have the exact numbers in front of me on the my700 or Essemtec, but they will both be better than that.
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