[ARC5] Bearings for DM-28 dynamotors

[Bruce Long via ARC5]

Yeah this make sense to me.  I've done enough mechanical stuff to think of a square ended cylinder as a pin.  A door hinge has a pin so a drift pin makes sense.
But a sewing pin has a point like a punch.
I suppose it is a good thing I don't sew very often.

      From: john rose <brokenthumb at live.com>
 To: arc5 <arc5 at mailman.qth.net> 
 Sent: Tuesday, November 25, 2014 7:53 PM
 Subject: Re: [ARC5] Bearings for DM-28 dynamotors
   
My father, a tool and die man, pointed out that a drift (he called it a drift pin, that’s Canadian for ya’) has a flat face, a punch has a point.






From: Scott Johnson
Sent: ‎Tuesday‎, ‎November‎ ‎25‎, ‎2014 ‎7‎:‎37‎ ‎PM
To: AKLDGUY ., arc5





No, It is also in common use in the US, "use a drift to remove that roll
pin", sometimes referred to as a drift punch.

Scott W7SVJ

-----Original Message-----
From: ARC5 [mailto:arc5-bounces at mailman.qth.net] On Behalf Of AKLDGUY .
Sent: Tuesday, November 25, 2014 4:43 PM
To: ARC-5 List
Subject: Re: [ARC5] Bearings for DM-28 dynamotors

> Note Mike's point about "brass".  The metal "hitter" should be softer 
> than the "hitee" (i.e. the dyno shaft.) Don't hit steel with steel!  - 
> Les

Good advice.
In my earlier days when I overhauled car engines and gearboxes, the "hitter"
was referred to as a drift. I see on Wikipedia that that's the name for a
hole alignment tool, and no mention is made of an impulse inflicting tool.

Perhaps "drift" was a term unique to the UK/British Commonwealth when used
in that sense?

73 de Neil ZL1ANM
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