How to Tram your Mill or Drill Press

I Tram my milling machine head in Nod and rotation. After machining the Cement mixer yoke journals. That setup you can see in the link below.

Video Link: https://youtu.be/cS5adcxy_bs


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This method is fairly quick using a tramming gauge / spindle square from Boring Reaserch, Inc.. This is a very nice tramming gauge / spindle square because of it's versitility with a width spacing adjustment of the gauges. This is a great unit for any size milling machine.

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🎯Cement Mixer Yoke Setup: https://youtu.be/zRzY0RM3GmA

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The gauge is actually very easy to make yourself (without the fancy plastic inlays.)
The 3 holes have to be precisely spaced.
Make the horizontal bar as long as possible but make sure you can rotate it all the way around without running into your column or leadscrew.
Make sure the shaft is long enough to get a good bite with your collet and still have enough clearance so your dials don't hit anything as you rotate the gauge around.
The shaft and bar should be perpendicular, but if they are off a bit, it doesn't matter, since you will zero the gauges to your table and not by the distance from the bar.

Make sure your indicators are turning the same number of revolutions before you start fine tuning. If you noticed, at about 11:00 the right dial is making 1 1/2 revolutions and the left is only making a half revolution. There is an edit at 11:48 where he seems to have found and fixed the problem.

I wonder why he used the block to initially zero the gauges. Is there a problem just zeroing off the table?