Fobco Star runout after months of inactivity and several moves

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And of course that measurement was from the outside to the inside of the tool being held, am I right in thinking that the centre of the chuck will only be half that amount out?
Ian
 
If the machine was giving a better read out prior to being moved,
then it's quite likely handling the machine upset the MT's
and, nevermind I misread a zero, lol.

I use a long bit as a poor mans solution, and done a whole lot of trial and error
to get it as good as could be, and then marked it as such
(surely a crime in the engineering world,:p)

My point, and I suppose question being, if it was previously better,
then do you stand a chance of making it worse, by leaving it as is?

Tom
 
Yes. Properly square unlike some previous offerings I have had. My Axminster pillar drill was out by two degrees! My Fobco Star drill has four speeds ~ 475, 1020, 1990 and 4260 rpm. That range will handle many drilling requirements. I can get up to 30,000 rpm with my CNC machine if I need more speed.
so how do you drill a19mm hole in a piece of steel with that
 
The other thing I recall reading about drill presses is that runout can be worse in a no load scenario. This is because the bearings are not running concentric without load, many therefore should be built with the bearings preloaded. That is something that could have changed with time or movement.
 

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