Visit site:Mini-Mill power feed and 3 axis DROs for $150
This is a demo of my X axis power feed which I built for $50 and 3 axis digital readouts based on products by iGaging that I also added for about $100. These were installed on a Harbor Freight Mini-Mill/Drill that I purchased on sale for $400. So far I am really pleased with the performance of both the mill and the DROs and power feed. The spec on the power drive - 24V gearmotor rated at 6 in-lb of torque at 144 rpm at 2A current draw powered by 24V 2.5A dc power supply using a variable duty cycle DC speed controller all purchased on eBay for under $50. Data Sheet for Gearmotor is available from: http://ift.tt/1DesABY. Page 2 shows parameters for motor WITH attached gearbox.. Refer to DME44B series. The gearbox is type 6DG however the motor is 6H which has larger diameter of output shaft, increased to 8mm. Look for Gear ratio 25:1 for exact parameters. Bought on eBay but no longer available. Digital Read outs from Grizzly.com: X and Z T23012 - 12" Digital Scale with Remote Readout $35.00 Y axis T21577 - 0-6" Digital Fractional Horizontal $22.95
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