Oh and one more thing, The Woodchuck came with a .25 gear set so you can
see 3.75 is half of the 7.5 pitch
Mike
OK
On 6/3/2014 2:51 PM, CURTIS GEORGE wrote:
Hello Tim (Yes Im still at work,) ;-(
I think I know the anser to your question. if you keep on cutting on
the same pitch you will just run ito the old pitch again, once you
make a full circle you will need to adjust to the waist between the
pitches to make up the differance.
C.A.G.
----- Original Message -----
From: Tim Krause <artmarb...@comcast.net>
To: legacy-ornamental-mills@googlegroups.com
Sent: Tue, 03 Jun 2014 06:40:42 -0400 (EDT)
Subject: Re: indexing accessory completed
Mike,
You will always be known to me as Lil Twisted, but I'd grant you the
title of Sir Twists-A-Lot if it was up to me :-)
I've been looking at your example and the first thing that comes to
mind is there is no 3.75" pitch with the newer Legacy models. How do
you get to that distance? I'm guessing 7" pitch gear and a .5
reduction duplex gear. I know I could get there with a custom gear
and our standard duplex gear, but no one has ever inquired so I've
never cut one.
Right now I'm trying to figure out on the first problem why we need to
rotate the stock 90º and not just keep going to 21-1/4 to get an equal
pattern all the way around. I could answer my own question by doing
your instructions but you must know off the top of your head.
-Tim
----- Original Message -----
*From:*Okla Mike (Liltwisted) <mailto:legacym...@iglide.net>
*To:*legacy-ornamental-mills@googlegroups.com
<mailto:legacy-ornamental-mills@googlegroups.com>
*Sent:* Monday, June 02, 2014 4:48 PM
*Subject:* Re: indexing accessory completed
I like where this thread has developed. The flexibility of
degrees on the positioning of the stock is awesome!
Where to start.
First of all the crank handle indexing is only for straight
milling so the 12 cuts down the side or top. Set the mill on a 3"
pitch, times 4 threads per inch and you will get 12. So 1/12th
turn of the stock for every full turn of the handle.
But we are talking about on a spiral, so we will look at carriage
indexing. But, lets use the numbers you have below as compared to
the pitches that you will be stuck with on the Legacy. Then we
will stick to 12 cuts.
Our first problem is the travel of 3.75 divided by 12 is 5/16 in
order to make it a full divisor of .25 (drive screw thread count)
we will have to multiply it by 4. to equal 1-1/4". So on a 20
inch stick we will allow the carriage to stop on the switch, then
move it back left to the start position 21-1/4 and cut again for a
total of 3 times. Then un-chuck the stock and rotate it in the
drive dog 90º, make 3 cuts, rotate again etc until it is complete.
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