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There’s an excellent thread over on the Home Model Engine Machinist forum that describes a modification for reducing the X2 mini-mill’s notorious column flex. It looks like it would be fairly simple to do. The hardest part might be cutting a 1-inch thick steel plate to the proper size (or paying to have someone Continue reading X2 Mini-Mill Mod Reduces Column Flex This tutorial was written by Earl Hackett, who graciously gave me permission to republish it here. Earl found that even though his mini-mill was trammed correctly, different length drill bits were not hitting the same spot on the work piece. He found that the spindle was slightly Continue reading Mini-Mill Spindle/Column Alignment I took a couple of machine shop classes and got spoiled by the X-axis power feeds on the Bridgeport mills. Ever since then I have thought about adding one to my Harbor Freight Mini-Mill (Sieg X2). Beside reducing wear and tear on your arm and the boredom of turning and turning and turning Continue reading Make or Buy a Power Feed for your Mini-Mill The typical Sieg X2 mini-mill [HF 44991, Grizzly G8689, Micro-Mark & others] has a lot of backlash in the Z-axis. In my case it was .053-inches, which was almost a full turn of the fine-adjust knob. I heard that putting a shim behind the rack on the column would help by causing it to Continue reading An Easy Way to Reduce the Mini-Mill’s Z-Axis Backlash |
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