Nested Cubes.txt Here is what I have in the 3cubes.zip file. 3cubes.txt - explains how to use the gcode program. 3cubes04.jpg - is a photo for step 4. 3cubes09.jpg - is a photo for step 9. 3cubes10.jpg - is a photo for step 10. 3cubes11.jpg - is a photo for step 11. 3cubes.cnc - is gcode for TurboCnc 3.1a. 3cubes.cpp - is a Borland c program to generate the gcode file. The remaining 3cubes.* files are generated by the Borland C++ compiler but are not needed. I have not used 3cubes.cpp and 3cubes.cnc for a year or so. I made 3cubes.txt and *.jpg last night. Let me know if there is a problem or if anything does not make sense. Tom Hubin thubin@earthlink.net