PDJ Inc. offers the Pilot Pro CNC Router. It can be built using 80/20 extrusion, steel square tubing or a combination of these materials as shown in the photo. The standard cutting capacity is 24"x26" but there is the potential to extend the bed length. The system appears suitable for a 690 or smaller router. The machine uses precision rails or rods for the linear motion and ball screws. These are higher end components and it is reflected in the price of the machine. A fully assembled machine is $4,350. A complete kit that includes the four stepper motors is offered at $3,250. The aluminum parts in the kit come with the hole centers 'pecked' but final hole drilling is done by the builder. Parts can be purchased in bundles. To give an idea of how the precision rails and balls screws affect the price of this router the set of rails and Z rods can be purchased separately as a set for $995. The ball screw set for the system is $510.
I purchased the Plans DVD for $34. The disc includes informative 'screencast' videos on various aspects of CNC. There are designs for multiple configurations of the machine, plus designs and information in many other items (including a ice cooler-based cat house) and component data sheets. It is a good source of information for a newbie like me. The Plans DVD is a good value.
I really like the 'professional' grade components - the 20mm rails and ball drive screw, but given the capacity of the machine it is a pricy package.
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