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Machine:
KG-3925 /w Z upgrade and the KT-2514 performed with similar accuracy We fastened a 1.5 x 1 x 24 inch 6061 Aluminum to the middle section of the KG-3925 Machine. We used a 1/4 diameter carbide end mill to cut a 1.0 inch part with a 0.4 inch Diameter hole. We turned on the router at the lowest speed setting. Programmed 4 depths at 0.050 inch per depth pass (total depth of .20 inch). We set the feed rate at 10 inches per minute. Gave it 2 finish passes on both the pocket hole and the outer 1.00 inch dimensions. There was some chattering when roughing but with the finish passes the part came out great. Overall the outer dimensions of 1.000 inch were off by .001 inch. The pocket hole was under 0.401 and allowed a 0.400 inch pin gauge to slip right in. The cut time was about 3.5 Minutes (not optimized). The Tolerance may vary on larger parts.
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