[4]

Is it bad juju to chuck up pin gauges?

[3]
[10] Like what you see?
Click here to donate to this forum and upgrade your account!

jmarkwolf

Active User
Registered
Joined
Nov 9, 2012
Messages
327
Likes
194
#1
I will sometimes use my pin gauges to locate existing holes, in work, to zero out my mill DRO.

In other words, I will chuck up a pin gauge in my mill and move the table until the pin gauge will drop into the hole for a quick and dirty hole centering operation. It's just not always neccessary to sweep a hole for it's precise center.

Is this ill advised?
 

Bob Korves

H-M Supporter - Sustaining Member
H-M Platinum Supporter ($50)
Joined
Jul 2, 2014
Messages
5,372
Likes
5,706
#2
I will sometimes use my pin gauges to locate existing holes, in work, to zero out my mill DRO.

In other words, I will chuck up a pin gauge in my mill and move the table until the pin gauge will drop into the hole for a quick and dirty hole centering operation. It's just not always neccessary to sweep a hole for it's precise center.

Is this ill advised?
I do that same thing, and also use 60 degree points instead of pins to do the same thing.
 

RJSakowski

H-M Supporter - Gold Member
H-M Supporter - Gold Member ($25)
Joined
Feb 1, 2015
Messages
3,442
Likes
3,951
#3
IMO, It's not the best practice, but I would think that if you lightly chucked the pin and were careful not to jam the pin into the hole you are probing, it should be OK. The pins are hardened and it takes a bit of abuse to damage them, Shops that I have been in kept a working set for purposes like yours and a good set for precision measurement.
 

dlane

Active User
H-M Supporter - Gold Member ($25)
Joined
Sep 27, 2014
Messages
2,926
Likes
1,372
#4
I use dowels
 

kd4gij

Active User
Registered
Joined
Feb 7, 2011
Messages
4,587
Likes
1,767
#5
Been there done that. Mostly put them in a collet.
 

Norseman C.B.

Registered
Registered
Joined
Dec 21, 2013
Messages
123
Likes
53
#6
A sixty degree point is my go to for quick centering.........:cool:
 

EmilioG

Active User
H-M Supporter - Gold Member ($25)
Joined
Jul 20, 2014
Messages
1,328
Likes
568
#7
I've done it with a large brass "pin" for centering a rotab. Starrett wiggler or 827B point end for small holes.
All of these methods are close but not at all accurate.
 

bfd

H-M Supporter - Gold Member
Staff member
H-M Supporter - Gold Member ($25)
Joined
Sep 9, 2016
Messages
418
Likes
242
#9
tools are meant to be used so if you ruin one will you regret it? do you use them for measuring holes? not the best practice but if it works for you do it they are yours right? bill
 
[6]
[5] [7]
Top