In this video I go thru how I level and align a 40" swing 180" Center to Center Series 90 Monarch 40hp Lathe. I cover how I level to allow for coolant flow and how I tweak the jack screws to get out any twist. After spending lots of time getting that as good as I could I then use indicators and a test bar made from a piece of hydraulic cylinder shafting to check that the head is pointed correctly vertical and horizontal along the length of the bed. I consider this the most important alignment on a lathe. The two collar method does not account for this and can lead to having a headstock that is pointed incorrectly to compensate for wear in the lathe bed. On a short lathe it isn't a huge issue but on a long lathe that error in alignment can translate into a lot. Once headstock alignment was good then I used test cuts with a bar to align the tailstock to get the lathe cutting within .0015" in 36".
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Lathe Leveling and Aligning like you have Never Seen!
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