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Damaged compound

lists
 

In article <OOEBKAFCDAGNJFABEHBHIEDPHCAA.mertbaker@...>,
MERTON B BAKER <mertbaker@...> wrote:
Nope. The plug is pre drilled with the tap drill, and locked in place.
The tap is then run in from below, where the pre-existing threads are
undamaged, and thus will segue into the insert with no problem,
especially if it has been fitted correctly at the lower end.
Yes, you said that, which is fine, but then you said "thread the drilled
insert BEFORE installing it with loctite", as a "more elegant method",
which implied threading independently of the work. That is what I was
querying.

--
Stuart
MERTON B BAKER
 

Indeed there is, I'd forgotten. I used it to restore the threads on the
cross feed screw on a lathe I was restoring. It works, but follow the
directions carefully or it will "Loctite". We live & learn, sometimes.

Mert

-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of Roy
Sent: Wednesday, October 12, 2011 9:42 PM
To: 7x12minilathe@...
Subject: [7x12minilathe] Re: Damaged compound


There's a Loctite product that may help restore the original threads. I've
had some success with it and some failures - you'll have to decide if it's
worth the bother.


d-repair-kit-48-ml

Roy

--- In 7x12minilathe@..., Andrew <akayton1@...> wrote:

UPDATE:

A trip to the bolt store and 79 cents later I have a 5mm longer bolt. It
has 6 turns before it snugs down. Much better than before. The original
tool post stud makes 8 turns to hit the bottom of the same hole.

So for it looks like the simplest answer is a longer bolt and no repair
or replacement. This weekend will tell when I continue with machining
the cylinder.

Thank you to all who responded. That is what I love about this forum.

Cheers,

Andrew

On Tue, 2011-10-11 at 20:59 -0700, george curtis wrote:

i gave up on helicoils over 25 years ago. they are just the worst
thing. i've since used time serts.

george



______________________________________________________________________
From: Andrew <akayton1@...>
To: 7x12minilathe@...
Sent: Tue, October 11, 2011 3:33:41 PM
Subject: Re: [7x12minilathe] Damaged compound


I was thinking of seeing if a "helicoil" could work. Of course where
do
I get it done?

More importantly, does the toolpost bolt have to be absolutely square
to
the surface?

Cheers,

Andrew







------------------------------------

Yahoo! Groups Links
MERTON B BAKER
 

Okay, we have two different suggestions here. In the first one, the insert
is turned to fit the hole on the outside, tap drilled thru, & loctited in
plate. In the second option, more secure , and more complicated, the hole
in the top slide, and the plug, are threaded, and screwed in place with
loctite. The thru hole in the plug would be unthreaded while this is done.
I was probably less than unambiguous in describing the second idea. Hope
I've got it straight this time.

Mert

-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of lists
Sent: Thursday, October 13, 2011 3:42 AM
To: 7x12minilathe@...
Subject: Re: [7x12minilathe] Damaged compound


In article <OOEBKAFCDAGNJFABEHBHIEDPHCAA.mertbaker@...>,
MERTON B BAKER <mertbaker@...> wrote:
Nope. The plug is pre drilled with the tap drill, and locked in place.
The tap is then run in from below, where the pre-existing threads are
undamaged, and thus will segue into the insert with no problem,
especially if it has been fitted correctly at the lower end.
Yes, you said that, which is fine, but then you said "thread the drilled
insert BEFORE installing it with loctite", as a "more elegant method",
which implied threading independently of the work. That is what I was
querying.

--
Stuart



------------------------------------

Yahoo! Groups Links
lists
 

In article <OOEBKAFCDAGNJFABEHBHOEEJHCAA.mertbaker@...>,
MERTON B BAKER <mertbaker@...> wrote:
Okay, we have two different suggestions here. In the first one, the
insert is turned to fit the hole on the outside, tap drilled thru, &
loctited in plate. In the second option, more secure , and more
complicated, the hole in the top slide, and the plug, are threaded, and
screwed in place with loctite. The thru hole in the plug would be
unthreaded while this is done. I was probably less than unambiguous in
describing the second idea. Hope I've got it straight this time.
Ping!

The light just came on, you're putting a thread on the /outside/ of the
plug to screw it into the topslide and then threading the inside with it
loctited in place.

--
Stuart

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