At the second hand store another customer was buying lathe equipment so I
asked him about trouble I'd had parting and he told me to set the blade
about 0.020" below center instead of trying to exactly center it to clean
off the tit before drilling as I had been doing. I just tried and it worked
much better. The partee didn't fall off but was easily broken free.

On 9/30/2023 9:34 AM, Jim Wilkins wrote:
> At the second hand store another customer was buying lathe equipment so
> I asked him about trouble I'd had parting and he told me to set the
> blade about 0.020" below center instead of trying to exactly center it
> to clean off the tit before drilling as I had been doing. I just tried
> and it worked much better. The partee didn't fall off but was easily
> broken free.
>

There was a discussion of that subject over on the Logan lathe list a
while back . They were advocating a spring tool holder for cutoff so
that it wouldn't dig in . I do the same as you , set my cutter just
below center and it works just fine . They were all aghast that a simple
adjustment will do the same thing as their spendy tool holder . Even got
a few "That can't possibly work or I wouldn't have spent all that money
on my tool." exactly as I expected .
--
Snag
Men don't protect women because they're weak .
We protect them because they're important .

On 9/30/2023 9:00 AM, Snag wrote:
> On 9/30/2023 9:34 AM, Jim Wilkins wrote:
>> At the second hand store another customer was buying lathe equipment
>> so I asked him about trouble I'd had parting and he told me to set the
>> blade about 0.020" below center instead of trying to exactly center it
>> to clean off the tit before drilling as I had been doing. I just tried
>> and it worked much better. The partee didn't fall off but was easily
>> broken free.
>>
>
>   There was a discussion of that subject over on the Logan lathe list a
> while back . They were advocating a spring tool holder for cutoff so
> that it wouldn't dig in . I do the same as you , set my cutter just
> below center and it works just fine . They were all aghast that a simple
> adjustment will do the same thing as their spendy tool holder . Even got
> a few "That can't possibly work or I wouldn't have spent all that money
> on my tool." exactly as I expected .

I've seen the below center cutting position suggested on various boards
and groups. Winky's Workshop did some videos on parting including
making a spring loaded tool some time back. I just skimmed the videos,
but among them turning below center was also mentioned.

--
Bob La Londe
CNC Molds N Stuff

--
This email has been checked for viruses by AVG antivirus software.
www.avg.com

On 9/30/2023 12:15 PM, Bob La Londe wrote:
> On 9/30/2023 9:00 AM, Snag wrote:
>> On 9/30/2023 9:34 AM, Jim Wilkins wrote:
>>> At the second hand store another customer was buying lathe equipment
>>> so I asked him about trouble I'd had parting and he told me to set
>>> the blade about 0.020" below center instead of trying to exactly
>>> center it to clean off the tit before drilling as I had been doing. I
>>> just tried and it worked much better. The partee didn't fall off but
>>> was easily broken free.
>>>
>>
>>    There was a discussion of that subject over on the Logan lathe list
>> a while back . They were advocating a spring tool holder for cutoff so
>> that it wouldn't dig in . I do the same as you , set my cutter just
>> below center and it works just fine . They were all aghast that a
>> simple adjustment will do the same thing as their spendy tool holder .
>> Even got a few "That can't possibly work or I wouldn't have spent all
>> that money on my tool." exactly as I expected .
>
> I've seen the below center cutting position suggested on various boards
> and groups.  Winky's Workshop did some videos on parting including
> making a spring loaded tool some time back.  I just skimmed the videos,
> but among them turning below center was also mentioned.
>

I've always done it , just seemed intuitive to me . Now that I've
stepped into the modern world with a qctp and a much more rigid cutoff
toolholder I'm partin' shit off just for the fun of it .
Please pardon my 'tude , I'm drinking to excess this evening in
preparation for a drive to Memphis tomorrow . Twofold trip , doing
repairs to a pottery kiln for a long time (35+ years) client and
picking up our oldest g-daughter up for a stay with Grammy and Grandpa .
We'll swap her for her brother in about 3 weeks . He wants to be here
for Beanfest .
--
Snag
Men don't protect women because they're weak .
We protect them because they're important .

"Snag" wrote in message news:ufapu3$1cqf7$1@dont-email.me...
.... doing repairs to a pottery kiln ...

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

What sticks to broken firebrick?

"Jim Wilkins" <muratlanne@gmail.com> writes:

> "Snag" wrote in message
> news:ufapu3$1cqf7$1@dont-email.me... ... doing repairs to a pottery
> kiln ...
>
> -----------------
>
> What sticks to broken firebrick?

fireclay? ("fire clay")

https://en.wikipedia.org/wiki/Fire_clay

On 10/1/2023 5:45 AM, Jim Wilkins wrote:
> "Snag"  wrote in message news:ufapu3$1cqf7$1@dont-email.me... ... doing
> repairs to a pottery kiln ...
>
> -----------------
>
> What sticks to broken firebrick?

They make a compound just for that . I'm not sure what's in it but it
doesn't shrink as it cures/dries . I can get the info from the potter
for you this afternoon if you'd like .
--
Snag
Men don't protect women because they're weak .
We protect them because they're important .

On 10/1/2023 6:23 AM, Richard Smith wrote:
> "Jim Wilkins" <muratlanne@gmail.com> writes:
>
>> "Snag" wrote in message
>> news:ufapu3$1cqf7$1@dont-email.me... ... doing repairs to a pottery
>> kiln ...
>>
>> -----------------
>>
>> What sticks to broken firebrick?
>
> fireclay? ("fire clay")
>
> https://en.wikipedia.org/wiki/Fire_clay
>

Yes , but fire clay shrinks as it dries . That might not be desirable ...
--
Snag
Men don't protect women because they're weak .
We protect them because they're important .

On 01/10/2023 11:45, Jim Wilkins wrote:
> "Snag" wrote in message news:ufapu3$1cqf7$1@dont-email.me... ... doing
> repairs to a pottery kiln ...
>
> -----------------
>
> What sticks to broken firebrick?

Thermal Ceramics Triset, Sairset, Satanite.

"Snag" wrote in message news:ufbn4a$1i084$1@dont-email.me...

On 10/1/2023 5:45 AM, Jim Wilkins wrote:
> "Snag" wrote in message news:ufapu3$1cqf7$1@dont-email.me... ... doing
> repairs to a pottery kiln ...
>
> -----------------
>
> What sticks to broken firebrick?

They make a compound just for that . I'm not sure what's in it but it
doesn't shrink as it cures/dries . I can get the info from the potter
for you this afternoon if you'd like .
Snag

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

No rush, it's for an old electric tube furnace I occasionally use for
controlled heat treating.
https://www.lindbergmph.com/light-industrial/1500-deg-c-heavy-duty-tube-furnace

On 10/1/2023 5:03 AM, Snag wrote:
> On 10/1/2023 6:23 AM, Richard Smith wrote:
>> "Jim Wilkins" <muratlanne@gmail.com> writes:
>>
>>> "Snag"  wrote in message
>>> news:ufapu3$1cqf7$1@dont-email.me... ... doing repairs to a pottery
>>> kiln ...
>>>
>>> -----------------
>>>
>>> What sticks to broken firebrick?
>>
>> fireclay?  ("fire clay")
>>
>> https://en.wikipedia.org/wiki/Fire_clay
>>
>
>   Yes , but fire clay shrinks as it dries . That might not be desirable
> ...

There are other refractory coatings.

You know I have a kiln taking up space on my shop floor. It was free.
I've goto to stop accepting free stuff... The plan is to steal the
elements and and stainless shell make a small heat treat oven. I've
been debating a either an combustible gas type or a positive pressure
type. I hate sanding. For now I either heat treat with a torch or in
the gas forge. Did I say I hate sanding?

--
Bob La Londe
CNC Molds N Stuff

--
This email has been checked for viruses by AVG antivirus software.
www.avg.com

On 10/1/2023 8:32 AM, David Billington wrote:
> On 01/10/2023 11:45, Jim Wilkins wrote:
>> "Snag" wrote in message news:ufapu3$1cqf7$1@dont-email.me... ... doing
>> repairs to a pottery kiln ...
>>
>> -----------------
>>
>> What sticks to broken firebrick?
>
> Thermal Ceramics Triset, Sairset, Satanite.
>

I think Sairset is the one my potter client used for some repairs .
--
Snag
Men don't protect women because they're weak .
We protect them because they're important .