On 09.10.12 13:54, Slavko Kocjancic wrote:
> if you have done pick and place then just put something like cotton swab
> (but more durable) and brush hole to spread glue. Maybe Hot glue is
> alternative too? Then you can use something like reprap extrudor to
> apply glue.
With a tweak: Maybe fixed mount the glue extruder, inverted, then run
the ball (held in the P&P vacuum pickup) in a small circle over its tip
while extruding glue, and place. That way there is only one moving
head. The radius of the glue circle relative to the hole diameter
controls whether all the glue goes in the hole, or a little forms an
external seating bead, both for looks and for greater strength. (OK,
glue extrusion rate is the other variable in that equation.)
If the 3D printer filaments serve as hot melt glue on the marbles (as
they do on themselves), then their choice of colours might introduce
another decorative element with the seating bead.
Erik
--
Never worry about theory as long as the machinery does what it's
supposed to do.
- Robert A. Heinlein
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