X-Axis Table with tapered Gib and Y-axis with square Steel ways
Z-Axis Slide with tapered Gib and Steel Box Ways
The Micro Mill is a very rigid and precise machine that uses some of the most advanced techniques compared to its competitors. The Y-axis and Z-axis are supported on 2 1/2 inch square steel tubing to provide a very solid feel. The leadscrews are all 1/2-20 unlike a lot of machines of similar size that use 1/4 inch leadscrews. We prefer to provide added mechanical features to allow the mill to be more useful without raising the price. Being an aerospace manufacturer for over 18 years our machinists know the importance of table back-lash compensation and full gib adjustments for wear as employed in the manufacture of the Micro Mill. Basically, the Micro Mill was designed by machinists and built by machinists. Overall working accuracy should exceed .0005 in. A full specification can be found here.
The Micro Mill has effortless, chatterless, table and millhead movement due to the unique design of oversized gibs, ground steel ways, and a massive carriage assembly.The steel bed/vertical mill head support provides a very rigid Z-axis and makes the Micro Mill ready for CNC upgrade if you desire. Our small Mill is really a scaled down version of a big Mill with manual operation.
The Micro Mill is a rugged precision instrument that has plenty of rigidity. Its machined, ground and stabilized steel bed has a life-time ball bearing spindle, coupled with a six speed positive vee belt drive. Spindle speeds in geometric progression from 525-5200 RPM provide the power to "HOG" 1/8 inch cuts in mild steel or the speed and precision to "dust" a few tenths.
Other big Mill features include large .001 inch graduations on friction adjustable micrometer dials for the X,Y,& Z axis. Adjustable gibs provide full compensation for X,Y & Z axis wear. The spindle head column can rotate from 0 to 180 degrees to provide for special machining tasks. All this adds up to a BEST VALUE in small Mills.
The mill has the same spindle specification as the Micro Lathe; this means that accessories such as collets, Jacobs chuck arbors and chucks, milling vice, milling cutters, and so on, can be freely interchanged between both machines. This adds to the convenience and versatility of these machines - a definite bonus!
Ideal for conversion to CNC
A set of stepper motor mounts is available that allow stepper motors to be fitted in place of the hand cranks on the three axes of the mill. Stepper motors of around 200 oz-in holding torque are recommended for such a conversion; with the addition of a suitable stepper drive system and software the mill becomes the ideal basis for desktop prototyping and small production runs.
The cost of the mill and accessories is very low - in fact a price that cannot be beaten. This means that a complete package, including accessories, can be affordable at below the price of other equivalent desk top mills. Click this link to see the current price list for the mill and accessories.