Fred,
It might be cheaper and simpler to use a dental drill, the new
kind that shoots grit instead of using a drill. The problem with
Mechanical Etching is the epoxy in the board. It is very abrasive to
the bit. There is probably a type of board out there that will give
better bit life. It would be nice to see someone come up with a
real easy way of making circuit boards. Tilting the table does not
remove the abrasive aspects of the epoxy in the board. At one
point I was going to submerge the board in an oil pan while it
gets milled. Then the thought of having oil soaked grit to get rid
of hit me!
John
It might be cheaper and simpler to use a dental drill, the new
kind that shoots grit instead of using a drill. The problem with
Mechanical Etching is the epoxy in the board. It is very abrasive to
the bit. There is probably a type of board out there that will give
better bit life. It would be nice to see someone come up with a
real easy way of making circuit boards. Tilting the table does not
remove the abrasive aspects of the epoxy in the board. At one
point I was going to submerge the board in an oil pan while it
gets milled. Then the thought of having oil soaked grit to get rid
of hit me!
John
--- In Homebrew_PCBs@y..., "IMService" <imserv@v...> wrote:
> Has anyone worked out a tilting table that could be used to tilt
the PC boards,
> and then to use the corner of a flat end mill? You would have to
cut the traces
> horizontal, then the vertical ones, but even with a reposition, you
might get a
> lot of benefit from the edge of a 1/8 or 1/4 cutter vs the center
of a V tipped
> cutter.
>
> You might get the same effect from angling the spindle, and the
table
> construction would not get so complicated.
>
> Fred Smith
> IMService