Making a portable line boring machine! Shop made. Part 1. Lead screw

The time has come to upgrade from the faithful old mag drill onto something more suited to the job.
In this video I make the lead screw to be used to power the line boring motor along the rails.
M24x1.5 pitch thread is being used allowing the auto feed unit to be able to drive nice and slow.
The bar drive motor is a Eibenstock 1800w high torque rotary drill.
The feed motor is a power feed off of a Bridgeport type milling machine.
30mm chrome bar for the rails with linear flange bearings to mount the slide on.
The lathe is a Harrison M400
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