Shopsmith Forums

I have a 510 and just purchased a 520. My 510 drill press rotates to 90 degrees the 520 rotates about 7 degrees past 90. I measured both. What could be the problem? I have looked at about everything and cant seem to see a problem. It feels like it might balance over if i begin using it. Any help would be appreciated. Larry

Always a good idea if you can post some pics. Possible that the Base casting is not straight (level) on the bench tubes? If you can measure the 'flats' on the lower Base casting (where the upper Base Arm casting lands in the DP position, they should be at the same angle as the bench tubes. Anything else I can think of would be visible damage to one or both of the Base castings.

- David

I can't verify 7 degrees past vertical but mine goes past vertical in the drill press mode. I believe that is an intentional design characteristic. If it was stopped at 90 degrees (or less) it would be subject to "falling back". As designed, it has passed the center of gravity and is stopped from going further.

I just measured one within a couple of tenths of 90 degrees. I don't think it's going to matter which Base Assembly version, but this was one of the older types with the Way Tube setscrews hidden and, IIRC, larger diameter hinge pin. I'll check one of the newer types with the setscrews on top later, I expect the same results.

Are there any modifications or unusual wear relating to the Base Assembly? Is the hinge pin straight? Is the hinge pin the correct diameter to go with this Base? Are the 'flats' on the lower casting flat? These are probably all among things the OP has already checked.

- David

If the work table is set 90 deg to the spindle then going slightly past vertical will not make any difference. The table will still be perpendicular to the spindle. Looks a bit funky but does not affect performance
Bill

I measured one with the newer style Base, way tube setscrews on top, and it also measured within a couple of tenths of 90 degrees relative to the base tubes. This seems to be the intent of the design.

- David

There are at least a couple of threads on this but the one I found was this one:

viewtopic.php?f=6&t=3381&hilit=vertical+angle

Please take the time to read and if you feel up to it do some more searching.

Base line is that the tilt is less then 90 degrees but not that far off as 7 degrees. If it is really 7 degrees then something else is wrong.......

Ed

I don't see how the base lock screw could be far enough off to allow it to rotate to 97 degrees.

Before commenting on this, I need to know HOW the 7° was 'measured'.

Withuout that I hazard a guess that the bench tubes are not fully into the base correctly.

Larry,

Besides other questions already asked, I would also be curious as to when your two Mark V's were made and if they are still original parts. The bench and headstock are the same no matter which Mark V it is when made at the same time. Examples, a Mark V 510 and a 520 made in 2000 would be the same except for the fence system.