Make sure that your CAD file is in the correct format
Currently, Big Blue Saw only supports version 12 DXF files. Big Blue Saw also can't handle certain DXF entities, SPLINE in particular.
Read Big Blue Saws FAQs about files to find out more, and in particular read Which AutoCad entities does Big Blue Saw support?
Upload only parts to be made
Bad:
complex assembly of many parts. Big Blue Saw can't determine which
part you want.
Good:
a single part that Big Blue Saw can make. It is outlined in purple
in the previous example.
Read the FAQ on what kinds of parts you can make with Big Blue Saw.
Outline segments should meet at their endpoints
Bad: lines on sides of area overlap
Good:
lines meet correctly at the corners
Your main outline shouldn't cross over itself
Bad:
this outline crosses over itself in the center
Good:
no lines cross in this outline
Make sure that segment endpoints meet correctly
Bad:
segments in the center are dangling
Good:
areas in the center are completely enclosed
Outline areas to be cut
Bad:
the letters in the center will not be cut correctly from the
rectangular area, as they don't form enclosures
Good:
the letters USA will be cut from the rectangle. Also note the
stencil style letter A.
Upload only a single part
Bad:
complex assembly of many parts. Big Blue Saw can't determine which
part you want.
Good:
a single part that Big Blue Saw can make. It's outlined in purple
in the previous example.
Read the FAQ on what kinds of parts you can make with Big Blue Saw.