Runnout and deflection testing on my old drill press

[Vintage Veloce]

Runout and deflection testing on my old drill press

View media item 77898I have a 1950's Tiger 15 that I just finished restoring (new bearings, etc.)
I decided to check the runout and deflection.

I'm curious if these are typical numbers for an old machine like this?

I'll note that you cannot tighten the bore for the quill on this drill press, so I just have to live with the deflection.

I posted some very short videos of the testing:
Runout:

Deflection:

Results (after my restoration ; all new bearings, etc.)
Quill at top

• Max deflection by pushing chuck with hand: 0.0020" (measured at top of spindle taper)
• Runout on shank of 3/8" drill bit: 0.0035
• Runout outside of chuck below lettering: 0.0025"
• Runout at top of spindle taper (above chuck): 0.0025"

At 3.75" of Quill Extension

• Max deflection by pushing chuck with hand: 0.0050" (full swing, pull to push)
• Runout outside of chuck below lettering: 0.0025"
• Runout at top of spindle taper: 0.0025"

 

[MShaw]

Fairly good for any drill press.

 

[Vintage Veloce]

This is my first drill press and the runout seemed OK to me. But I was concerned about the deflection, as I found you couldn't squeeze the quill tighter like I had seen in some other machines.

 

[ALLFAST]

That is a cool piece. I love the honey dipper grooved balls and forward knob.

The thick and tapered quill handles seal the deal for me.

It just proves that the manufacturers of yesteryear had it right with your nice runout specs.

Shawn

 

[astroracer]

Deflection with a drill press shouldn't be a concern. All of the drilling operations are straight down. Drill presses are not milling machines so there should be zero side pressure put on the quill while drilling.
Mark

P.S. That is a very cool DP by the way!

 

[Recordus]

Superb machine. Man, I love old drill presses. It's not healthy...

Was Tiger the manufacturer, or was Tiger the name of a line marketed by a big manufacturer? For some reason I thought perhaps it was related to Cannedy-Otto...

 

[Vintage Veloce]

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Was Tiger the manufacturer, or was Tiger the name of a line marketed by a big manufacturer? For some reason I thought perhaps it was related to Cannedy-Otto...

Apparently was a California manufacturer in the 50s that didn't last long. I haven't been able to find more information that that.