Boring heads for the mill
#4
(06-04-2012, 02:22 PM)Hopefuldave Wrote: Choosing between 2" and 3"... I guess it comes down to how big you think you'll want to go! The rigidity's likely to be limited by the size of the shank / spindle and overall construction quality more than the head size, although a longer dovetail will always be more rigid than a shorter? I'd advise going for a dovetail / leadscrew type rather than a pivoting-arm, purely because the leadscrew makes it a lot easier to adjust to dimension.

Re your press fit - if this is for a 15mm shaft, and it actually *is* 15.00 mm, you're a touch on the loose side - .590" would be a press fit (14.986mm, 0.55thou" undersize), .591 would be a "close sliding" fit, at 15.011mm (about 0.45 thou" clearance) - shoot for 0.590" and then lap the bore if you need to?

Just my ha'pennorth,
Dave H. (the other one)

You are right Dave, I just gave the nominal dimension. The pin is grooved and had a roll pin to anchor it. The hole in the pot metal was nominal but I want a tighter fit than the original design.
Collecting tools for 30 years.
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Messages In This Thread
Boring heads for the mill - by DanH - 06-04-2012, 01:32 PM
RE: Boring heads for the mill - by doubleboost - 06-04-2012, 02:12 PM
RE: Boring heads for the mill - by Hopefuldave - 06-04-2012, 02:22 PM
RE: Boring heads for the mill - by DanH - 06-04-2012, 03:43 PM
RE: Boring heads for the mill - by EdK - 06-04-2012, 04:16 PM
RE: Boring heads for the mill - by f350ca - 06-04-2012, 05:23 PM
RE: Boring heads for the mill - by DaveH - 06-04-2012, 05:26 PM
RE: Boring heads for the mill - by EdK - 06-04-2012, 05:39 PM
RE: Boring heads for the mill - by DanH - 06-04-2012, 08:06 PM
RE: Boring heads for the mill - by ukazak - 06-05-2012, 01:45 AM
RE: Boring heads for the mill - by doubleboost - 06-05-2012, 05:10 AM
RE: Boring heads for the mill - by Mayhem - 06-05-2012, 06:24 AM
RE: Boring heads for the mill - by f350ca - 06-05-2012, 09:57 AM
RE: Boring heads for the mill - by Highpower - 06-05-2012, 03:45 PM
RE: Boring heads for the mill - by EdK - 06-05-2012, 03:59 PM
RE: Boring heads for the mill - by rleete - 06-05-2012, 06:56 PM
RE: Boring heads for the mill - by stevec - 06-05-2012, 07:18 PM
RE: Boring heads for the mill - by DanH - 06-05-2012, 07:28 PM
RE: Boring heads for the mill - by krv3000 - 06-06-2012, 05:05 AM
RE: Boring heads for the mill - by PixMan - 06-15-2012, 10:09 PM
RE: Boring heads for the mill - by TomG - 06-21-2012, 12:35 PM
RE: Boring heads for the mill - by DaveH - 06-21-2012, 01:43 PM
RE: Boring heads for the mill - by TomG - 06-21-2012, 02:21 PM
RE: Boring heads for the mill - by RobWilson - 06-21-2012, 02:45 PM
RE: Boring heads for the mill - by RobWilson - 06-21-2012, 01:56 PM
RE: Boring heads for the mill - by RobWilson - 06-21-2012, 03:02 PM
RE: Boring heads for the mill - by Keith_W - 06-22-2012, 03:33 PM
RE: Boring heads for the mill - by TomG - 06-22-2012, 05:34 PM
RE: Boring heads for the mill - by DaveH - 06-23-2012, 07:15 AM
RE: Boring heads for the mill - by PixMan - 06-22-2012, 07:10 PM
RE: Boring heads for the mill - by EdK - 06-22-2012, 07:16 PM
RE: Boring heads for the mill - by pineyfolks - 07-25-2012, 04:20 AM



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