RE: Here is Legacy's Russian cousin

[bulkeley]

Yes it sure makes you appreciate your legacy right

 

Bill

 

From: 'Curt George' via Legacy Ornamental Mills 
 
Sent: Wednesday, October 11, 2023 3:05 PM
To: Legacy ornamental mills 
Subject: Here is Legacy's Russian cousin

 

https://www.youtube.com/watch?v=wxvkMf69_vs 
 &t=172s  A fun look at 
what other Ornamental mills around the world are making.  This video is a few 
years old, but it just goes to show you all, the we have it much easer/better 
using the Legacy to do the same things.

 

C.A.G.

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Here is Legacy's Russian cousin

['Curt George' via Legacy Ornamental Mills]

https://www.youtube.com/watch?v=wxvkMf69_vs&t=172s  A fun look at what other 
Ornamental mills around the world are making.  This video is a few years old, 
but it just goes to show you all, the we have it much easer/better using the 
Legacy to do the same things.

C.A.G.

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Re: High index count problem solved

[Tim Ziegler]

Good stuff Dan,

I'm excited to see your results.

Kind Regards,

Timothy J. Ziegler
Ziegler WoodWork & Specialty
Ziegler Laser Worx LLC
14171 160th Ave.
Foreston MN 56330

320-294-5798 shop
320-630-2243 cell


On Tue, Oct 10, 2023 at 12:52 PM cdkr...@gmail.com 
wrote:

>
> *Once again the neighbors are astonished as he runs down the road naked
> shouting "EUREKA" *
>
> I really feel kinda dense that it's taken me a day and half concentrated
> effort to figure out this relatively simple problem.  The light dawned as I
> was staring at my spindexer wondering how it worked to take 180 holes and
> convert it to 360.  The answer was developed decades if not centuries ago
> by a French mathematician named Vernier.
> I'm going to assume the reader knows how to use a vernier scale.
>
> Here is a picture of what I propose to do.  I'm going to take the standard
> REVO index gear that already has 24 holes in it, and drill a circle of 72
> matching holes (1/8" IIRC) on a 6 1/2" diameter. These are represented in
> the picture as pink. I already have an index arm that was part of the
> indexing mod I developed a while ago.  This won't make sense unless you
> have a similar mod. I'm going to replace that skinny arm with a wider one
> that will accommodate the 9 vernier holes, which will be drilled on the
> same radius circle as shown by the sector between the lines.
>
> [image: HighCountIndex1.png]
>
> This effectively subdivides the plate into 720 divisions of 1/2° each.
> This opens up a wide range of options useful for the fine checkering
> patters of the goal. (see Checkering sheet on the Pitch chart attached
> again.) And it's in my price ball park.
>
> If you don't need or want this, that's OK.  I still want the 2x gears or
> at least confirm the tooth counts on that duplex.  I haven't considered
> whether a sprocket conversion will cover the range offered by the 2x gear
> set.
> DanK
>
> --
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> "Legacy Ornamental Mills" group.
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> 
> .
>

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Re: High index count problem solved

[cdkr...@gmail.com]

Can't edit these emails.  The spindexer has 36 holes in it's plate not 
180.  It has a 1° resolution.  
DanK

On Tuesday, October 10, 2023 at 1:52:07 PM UTC-4 cdkr...@gmail.com wrote:

>
> *Once again the neighbors are astonished as he runs down the road naked 
> shouting "EUREKA" *
>
> I really feel kinda dense that it's taken me a day and half concentrated 
> effort to figure out this relatively simple problem.  The light dawned as I 
> was staring at my spindexer wondering how it worked to take 180 holes and 
> convert it to 360.  The answer was developed decades if not centuries ago 
> by a French mathematician named Vernier.  
> I'm going to assume the reader knows how to use a vernier scale.
>
> Here is a picture of what I propose to do.  I'm going to take the standard 
> REVO index gear that already has 24 holes in it, and drill a circle of 72 
> matching holes (1/8" IIRC) on a 6 1/2" diameter. These are represented in 
> the picture as pink. I already have an index arm that was part of the 
> indexing mod I developed a while ago.  This won't make sense unless you 
> have a similar mod. I'm going to replace that skinny arm with a wider one 
> that will accommodate the 9 vernier holes, which will be drilled on the 
> same radius circle as shown by the sector between the lines.
>
> [image: HighCountIndex1.png]
>
> This effectively subdivides the plate into 720 divisions of 1/2° each.  
> This opens up a wide range of options useful for the fine checkering 
> patters of the goal. (see Checkering sheet on the Pitch chart attached 
> again.) And it's in my price ball park.   
>
> If you don't need or want this, that's OK.  I still want the 2x gears or 
> at least confirm the tooth counts on that duplex.  I haven't considered 
> whether a sprocket conversion will cover the range offered by the 2x gear 
> set.  
> DanK 
>

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Re: Checkering diameter calculations, direct indexing

['Curt George' via Legacy Ornamental Mills]

 Thanks Tim
I originally planed to use the 200 due to the acme screw. but sadly, I can not 
find the other directional gear set, I own two set of each, but can only fine 
the right handed sets at this moment. so instead of spending a day looking for 
what should be in the Legacy drawer   I went to the 1000ex, which has Tim's 
gear changer on it.I want to try this again on the 1000ex. to see if it was the 
math or the screw that was the problem?
When the left handed gear changer shows up. (and I know it will.) I will also 
try it on the 200. (in the very worst case, I can always change the TK gear 
changer to my 200.)   We will see?  ;-)
Have a good day.
C.A.G.



On Tuesday, October 10, 2023 at 01:10:13 AM EDT,  
wrote:  
 
 
Yes one of Tims K best inventions if he was still making them everyone would 
want one.

Perhaps the 1/8 index had something to do with it usually ¼ is the smallest we 
do which matches the leadscrew 

So I’m thinking the 8 tpi leadscrew might be the answer I will be interested in 
how that goes when you try it curt

  

  

Bill

  

  

From: 'Curt George' via Legacy Ornamental Mills 
 
Sent: Tuesday, October 10, 2023 12:54 PM
To: legacy-ornamental-mills@googlegroups.com
Subject: Re: Checkering diameter calculations, direct indexing

  

Hello Everyone.

  

I just had a NOTE Worthy experience with this checkering concept. (NOTE worthy, 
but not picture worthy.) ;-p

  

I used Mike's carriage travel indexing method.  YES it did work, but my math 
was slightly off. 

I set a 5" pitch, 5" long, some 20 indexes at 1/8" on a 1.5" dia. spindle.  

  

Now what happened was everything worked out until the 4 cut. which was off one 
tooth on the acme screw, so I could not get the split nut to engage where is 
was meant to engage at the stop every 4th cut.

Yes every 4th cut was off over the the hole test piece.  both directions of 
cut. (So at least it was consistent.) ;-)

  

Now I know this would have have happened if I had used my 200, but on my 
1000ex.  the mistake repeated its self every 4th cut... No why did I say this 
mistake would have happened on my 200? that is easy, My 200 has an

Acme screw that is 5/8-8 not 4. so the finer thread would have given me more 
precise cuts.

  

Now I hope to try this experiment again latter. (but not tonight.)

  

NOW something else worth talking about is how easy it was to use my "Krause" 
Quick change reversing gears set.  
https://groups.google.com/g/legacy-ornamental-mills/c/fHSYCcoJoUw/m/r6IKoOWlPjQJ
 . It made reversing the gears to make the diamonds, a very easy and quick job.

  

More on this latter.

  

Have a good night.

  

C.A.G.

On Monday, October 9, 2023 at 08:19:07 PM EDT, cdkr...@gmail.com 
 wrote: 

  

  

Thanks, Bill.  I've no experience with an eccentric chuck.  Looks like a

workable thing.  I'll look into it as a possible solution.

DanK

  

On Monday, October 9, 2023 at 7:44:45 PM UTC-4 bulk...@mmnet.com.au wrote:


Being such a small amount needed to index I would use an eccentric chuck to 
hold the work like my orbit chuck see the attached pics

It has the capability if very fine indexing you can see the index lines on the 
second pic this would be how I would tackle this problem

This chuck has proven to be very useful for me over the years.

Just my thoughts on it.

 

Bill

 

 

 

 

From: legacy-orna...@googlegroups.com  On 
Behalf Of cdkr...@gmail.com
Sent: Tuesday, October 10, 2023 8:56 AM
To: Legacy Ornamental Mills 
Subject: Re: Checkering diameter calculations, direct indexing

 

Thank you for the video, Mike. It reinforces the method of indexing 

that Legacy uses in their videos. And it works well enough to be 

useful in most environments.  I'm pushing the limits of the machines

I think with this checkering goal.  

 

Here is today's learning.  I have a chart into which I have entered my

specification (in the green areas). The line pattern is 21 lines per inch (LPI)

the helix angle is 60° and using the standard gear set of the REVO 

obtained a 6" pitch (close enough to 5.913). 



 

80 starts indicates a workpiece of 1.213 diameter, so I made one 

close enough. The first two cuts in opposing directions was revealing.

The helix angle was right on, as was the pitch.  



 

Now, without an 80 hole index, I'm seeking help figuring out the distance

to move the frame, which will not be a multiple of 4 (the TPI of my lead

screw).  Or how many degrees and how to measure it to turn the crank.

 

Help? (he says in a small squeaky voice)

 

DanK

 

On Monday, October 9, 2023 at 2:03:48 PM UTC-4 Tim Ziegler wrote:


You do come across with a very large understanding of things though Dan.




Kind Regards,

 

Timothy J. Ziegler

Ziegler WoodWork & Specialty

Ziegler Laser Worx LLC

14171 160th Ave.

Foreston MN 56330

 

320-294-5798 shop

320-630-2243 cell

 

 

On Mon, Oct 9, 2023 at 6:08 AM cdkr...@gmail.com  wrote:


Curt, I'm not sure of what is meant by "indexing the carriage".  I susp