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Re: Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

I did it once with a belt sander.

Mike Taglieri?

On Sat, Feb 17, 2024, 11:55 AM Bill Williams <BWMSBLDR1@...> wrote:
My attempt to mll down an Armstrong tool holder ended in blunting the inserts in a carbide face mill! Be forewarned.? ?Bill in Boulder

On Sat, Feb 17, 2024 at 9:04?AM davesmith1800 <davesmith1@...> wrote:
I have two Armstrong tool holders I plan to mill down.? One use for the follower rest and triple knurling tool.?
My last lathe I also a American tool holder and did need to mill.

Dave?

DAVID WILLIAMS
Feb 16? ?
Dear Dave, Thank you for the images & information. Very interesting. (Every day is a day a school). David UK
Re: Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

My attempt to mll down an Armstrong tool holder ended in blunting the inserts in a carbide face mill! Be forewarned.? ?Bill in Boulder


On Sat, Feb 17, 2024 at 9:04?AM davesmith1800 <davesmith1@...> wrote:
I have two Armstrong tool holders I plan to mill down.? One use for the follower rest and triple knurling tool.?
My last lathe I also a American tool holder and did need to mill.

Dave?

DAVID WILLIAMS
Feb 16? ?
Dear Dave, Thank you for the images & information. Very interesting. (Every day is a day a school). David UK
Re: Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

I have two Armstrong tool holders I plan to mill down.? One use for the follower rest and triple knurling tool.?
My last lathe I also a American tool holder and did need to mill.

Dave?

DAVID WILLIAMS
Feb 16? ?
Dear Dave, Thank you for the images & information. Very interesting. (Every day is a day a school). David UK
Re: Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

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Dear Dave, Thank you for the images & information. Very interesting. (Every day is a day a school). David UK.


On 16 Feb 2024, at 23:45, davesmith1800 <davesmith1@...> wrote:

?Here a few photos?
<Screenshot_20240216-144325_Edge.jpg>
<6129933985ba2dd568074bd7.jpg>
Re: Extension cross slide

 

Looks great, Dave!

On Friday, February 16th, 2024 at 8:03 PM, davesmith1800 <davesmith1@...> wrote:

[Edited Message Follows]
[Reason: Error ]

Here photos of the exstension in use.?
Nice have the longer feed cross slide

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Attachments:
Re: Extension cross slide

 
Edited

Here photos of the exstension in use.?
Nice have the longer feed cross slide

=

===========
.
Re: Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

Note the bottom mill off to fit holder.
Not my holder

Dave?
Re: Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

Here a few photos?
Re: Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

The??Armstrong tool holders are 3/4" to 7/8" for small lathes you can mill down to fit a Aloris AXA 1/2" tool bit holder.?
Now you can adjust the Armstrong tool holders and not need the American tool holder.?

They can come handy for some types of work.

Dave?
Re: Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

Aloris use to make a holder for threading back 1970's.?
But most use carbide today or just sharpen HSS tool bits.?

Dave?
Re: Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

An? excellent tool, I have had and used one since 1967. You might want to make a QC fixture?to support the cutting tool in your QC toolpost. You can make your own form tools to work the same way!? ?Bill in Boulder


On Fri, Feb 16, 2024 at 6:00?AM Miket_NYC <mctaglieri@...> wrote:
"The Armstrong threading tool where it's kept sharp by honing the top as the tool wears."

I recently got one of these threading tools also (though I think mine is Williams brand rather than Armstrong). It's a great idea: a disk with a 60¡ã angle turned on the edge that you rotate as it wears down. You sharpen it only on top. The head is also canted at the correct angle for threading.

I don't want to use a lantern tool post, but there's no reason this can't be clamped somehow onto the regular compound.

Here are two photos taken from ebay. (This is not my tool, but looks similar).




Mike Taglieri?



On Tue, Feb 13, 2024, 10:26 AM Ron K via <ron.kellis=[email protected]> wrote:
It does! Thanks. I have two tools I'd like to try just for my own knowledge.
The Armstrong threading tool where it's kept sharp by honing the top as the tool wears.
An Armstrong goose neck parting tool with the anti-chatter notch. Too many "I'm a gunna." projects in the queue to make one like Mark did, but I've always been curious.?

Again, thanks!

Ron

Attachments:
Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

 

"The Armstrong threading tool where it's kept sharp by honing the top as the tool wears."

I recently got one of these threading tools also (though I think mine is Williams brand rather than Armstrong). It's a great idea: a disk with a 60¡ã angle turned on the edge that you rotate as it wears down. You sharpen it only on top. The head is also canted at the correct angle for threading.

I don't want to use a lantern tool post, but there's no reason this can't be clamped somehow onto the regular compound.

Here are two photos taken from ebay. (This is not my tool, but looks similar).




Mike Taglieri?



On Tue, Feb 13, 2024, 10:26 AM Ron K via <ron.kellis=[email protected]> wrote:
It does! Thanks. I have two tools I'd like to try just for my own knowledge.
The Armstrong threading tool where it's kept sharp by honing the top as the tool wears.
An Armstrong goose neck parting tool with the anti-chatter notch. Too many "I'm a gunna." projects in the queue to make one like Mark did, but I've always been curious.?

Again, thanks!

Ron

20240117_144757~2.jpg

Re: Linear Digital Readout Scales

 

It will work for new manager too.

Like airport in Reno I spent all time airport.? The airport has lot of my doors.

Dave?

mike allen
9:04pm? ?
What are the odds of a Harbor Freight still having the same manager from one week to the next ? They may even have book on that in Vegas .
We have 2 HF's in Reno one go's through managers just like 20 % off coupons . The other one is more stable
Re: Linear Digital Readout Scales

 

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What are the odds of a Harbor Freight? still having the same manager from one week to the next ? They may even have book on that in Vegas .

We have 2 HF's in Reno one go's through managers just like 20 % off coupons . The other one is more stable .

animal

On 2/15/24 8:15 PM, davesmith1800 wrote:

Cheaper is not best?
Need the $20.00 for quality as I found out the hard way aka return.
Harbor Freight is easy you see manager in your leathers and he quickly fix the problem?

Dave?

Re: Linear Digital Readout Scales

 

Cheaper is not best?
Need the $20.00 for quality as I found out the hard way aka return.
Harbor Freight is easy you see manager in your leathers and he quickly fix the problem?

Dave?
Re: Ball bearing life why so short?

 

David Everett
1:26am???

Agreed.
Go for a known quality brand.? SKF or NSK as a couple of examples.

Dave
The Emerald Isle
Thank you all .

It looks look the bearing are ABEC 1 OR lower.

I have size in? NSK and maybe SKF ll in ABEC-3 or better I will save the best when needing to replace.?

Dave?


?
Re: Ball bearing life why so short?

 

Here a few charts on ABEC 3 and ABEC 9
The ABEC 3 is motor grade ball bearing.?
The ABEC 9 is mainly use in machine tools.




https://www.engineersedge.com/bearing/ball_bearings_tolerances.htm
Re: Ball bearing life why so short?

 

Here price for a abec-7 7206?



All bears I purchased for doors was ABEC-3. It was for a press fit and low quality could give problems in installing the bearings.?

Dave?
Re: Ball bearing life why so short?

 

The ABEC rating mostly refers to tiny differences in runout, with higher numbers being microscopically more precise & astronomically pricier.

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Roy
Re: Linear Digital Readout Scales

 

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??? ??? 20 bucks gets ya a 4" digital at Harbor Freight a couple bucks more gets ya the 6"

Probably cheaper ones on the big A but at least ya can walk into a Harbor if theres a issue .

animal

On 2/15/24 6:26 PM, OldToolmaker via groups.io wrote:

I am looking for some short linear digital scales to mount on a small lathe like a Shereline. I am hoping to find something on the order of ¡°cut-off¡± digital caliper.
Could anyone suggest a good source? I want to avoid any wires and prefer a button battery type.
Dick

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