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Ed Steinkirchner

homemade milling machine build

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The title says it all, had this project in the works for a while now and it's finally gotten to the point that it looks like something so i figured now it's the time to post some pics and details. 

It's built pretty much entirely from scrap, save for fasteners. The column is 8" well casing, capped with an 8" square of 1/2" plate, then the head is blocked 6" higher for the head mount on 4" pipe. The head itself is a 1 1/4" pipe with a heavily machined T on the end for the spindle. The spindle is mounted in tapered roller bearings, threaded at the nose 1" x 10 tpi for fittings like boring heads and fly cutters. More details to follow.

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The drive is going to be 4 step step pulley primary reduction, then a 2" to 6" final reduction to the spindle, which should make the bottom end speed with the 1725 rpm motor, about 200 rpm. The angle iron brackets that hold the head are bored to fit the horizontal pipe. They'll be split and fasteners added to clamp the  head (it'll look like main bearing caps). Then the angle of the head can be turned left or right and clamped if needed. When the drive and the head is complete I'll add guards over the spindle pulley then it's on to the slide ways! 

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