On Tue, 25 Apr 2006 21:09:48 GMT, "BoxMaker"
wrote:

Looking for code for a standard chess set using a V-Mill.

========================
If you can supply some more information it would be helpful.

(1) Do you want to make the entire 32 piece chess set or just
selected pieces such as the king or knight?

(2) How large are the pieces you want to make? Typically
specified by the height/base of the queen.

(3) What materials are you planning on using?

(4) Is this a "one off" or you planning for semi-series
production?

(5) Does your v-mill have a rotary table [a axis] or are you
going to generate the curves using xy moves? If a rotary table,
is the vertical or horizontal? Does your controller support G2/G3
arcs or only G1? Is your controller 2_1/2 or 3 d?

(6) The "standard" chess set is generally assumed to be the
Staunton. This was developed for easy turning in wood on a manual
lathe with some manual second operations such as the crenelations
on the rook, slotting the bishop, and sculpting the knight's
[horses head] after the profile was turned. Given that the
process and most likely the material is very different, you may
wish to consider a chess set designed for CNC machining center
[mill] production.

(7) Before I retired, I taught some basic CNC classes. We used a
Denford ORAC cnc lathe. In the ORAC instructional material was a
program for the queen and a pawn. Denford USA email includes




They may be able to supply you with a copy of the printed
documentation. Be advised that the ORAC G/M codes are not in
standard format and will most likely required re
inputting/translitteration for your controller.

(8) Do you have access to a CAD program? If so, can you
read/save dwg or dxf files? If you can run Autocad LISP macros,
there are a number of free macros that use the snap commands to
locate, and will generate a leader line with the xy or xyz
coordinates such as the centers/endpoints of arcs, arc radius,
endpoints of lines that will make manual cnc programming the
proverbial "piece of cake."

(9) If you are going to make several pieces, fixturing may be a
bigger challenge than the programming.

(10) for chess sets see:
http://www.chesscentral.com/sets-pie...n-chessmen.htm
http://store.convekta.com/shop_model...&sView=Catalog
(and about 100k more)


Unka George
(George McDuffee)

There is something to be said for government by a great aristocracy
which has furnished leaders to the nation in peace and war for generations;
even a democrat like myself must admit this.

But there is absolutely nothing to be said for government by a plutocracy,
for government by men very powerful in certain lines and gifted with the "money touch,"
but with ideals which in their essence are merely those of so many glorified pawnbrokers.

Theodore Roosevelt (1858-1919), U.S. Republican (later Progressive) politician, president. Letter, 15 Nov. 1913.