Version 4.2 of TurboCNC is well on it's way toward release.  I'm loathe to set a date, but so far, so good.

  Best new feature is the "Pentium Timer Mode", which increases the max pulse rate by a healthy factor of two or three.  The other heavy hitter is constant velocity cutting, not to mention bug-fixes. Believe me, there are a lot of big-fixes

  The TurboCNC User's manual is now online.  It's 5M with the pictures, 1M without so be patient if you're on dial-up.

  Beginner's guide to CNC conversion article.  This is the presentation I gave at NAMES in April 2003. For folks just starting out, it's an excellent reference.

  Ron Steele is selling these great sets of plans for a full CNC conversion of the Harbor Freight Mini-Mill.  For the extra busy individual (or maybe just lazy), he also sells a full kit that you can just assemble onto your machine.

  TurboCNC gallery.  Some of the best parts made with the software.  I'm always looking for new submissions, so email one if you have something you're proud of.  

Old versions of the program are in in the archive.

Using a 2D mill and manual Z axis with 3D software?  Check out the Zbreak utility to insert the correct stop codes into your g-code programs automatically.