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Ed, the next thing you'll want to invest in is one of those "plastic welders" from Harbor Freight. Grab one of those chips with the tweezers and hit it right between the pads with the hot air from the plastic welder. Barely tug on it, and it'll pop off in short order. With a little extra flux, they'll go back down the same way.
Bob White wrote:
On Fri, 16 Feb 2007 14:19:26 -0500
"Ed Anderson" <eanderson@carolina.rr.com> wrote:
This shows one of the two side mounts of my SMD solder paste printer which is attached to the MSD nylon strip which rides in a groove inside the cheap T track. The T track is simply screwed to the 1/2" slab of aluminum. The acorn nut provides tension through a 1/4" threaded rod and keeps the pull-handle gripped between the two sides and provides tension on the side plate which puts side pressure on the MSD strip in the T rail. More pressure makes the device slide slower and less makes it faster. The squeegee holder can pivot to either put the squeegee down on the bed or to hold it up off of it after a solder run and you want to move the squeegee holder back to the other original end of the board without smearing your deposited paste.
The second photo shows where the squeegee holder would be positioned after a "solder-run" was made. I would then rotate the squeegee up 1/8" inch out of contact with the bed and move it back to the other (starting) end of the bed.
Ed
Hi Ed,
Really nice piece of work. If it works as well as you hope it might be
a product in itself. I've had boards made with surface mount
components, but always populated by a board house with commercial
equipment. I always figured the tiny surface mount components would be
the end of hobbyist electronics. You've shown me that I lack
imagination.
Bob W.
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,|"|"|, Ernest Christley |
----===<{{(oQo)}}>===---- Dyke Delta Builder |
o| d |o http://ernest.isa-geek.org |
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