My wood chuck is so old it was before pictures
On 11/28/2012 11:48 PM, Tim Krause wrote:
Hi Mike,
Your machine is exactly the case in point where the manual makes
things much more complicated than it needs to be. Three charts and a
picture diagram just to figure out what you need? WTF! Writing the
pitches on the gears is yet another great tip. It means more than A-G
or 1-9 or whatever one might come up with.
Frankly I don't like doing math at all and I'm glad the gear label is
on the headstock, nothing beats a picture!
-Tim
----- Original Message -----
*From:* Okla Mike (Liltwisted) <mailto:legacym...@iglide.net>
*To:* legacy-ornamental-mills@googlegroups.com
<mailto:legacy-ornamental-mills@googlegroups.com>
*Sent:* Wednesday, November 28, 2012 9:31 PM
*Subject:* Re: Fun with Numbers and the Gear Sets
I like just doing the math once. Here is a picture of the gears I
have .25, .50, standard, and the X2 sets. I have 9 drive gears as
well. You can see in the pictures I listed the drive gear 1-9 and
the the corresponding pitch that is capable with that gear set.
It will keep you from passing a brain stone every time you try to
get a Lil twisted (lol)
Mike
On 11/28/2012 6:53 PM, Tim Krause wrote:
Hello All,
When Legacy came up with the idea of labeling the drive gears A-G
and used a decal on the headstock to match the gears, they really
made selecting spiral pitches easy. Before that point in time,
the instructions included with the machines referred to the gears
by the number of teeth. Counting teeth is not easy but it leads
to some more interesting facts about your machine.
Did you know that you can quickly calculate the spiral pitch that
a legacy drive gear will make if you know the number of teeth?
This simple formula works on all of the models using the Standard
Duplex Gear.
Spiral Pitch = 180 / Number Of Teeth
Is this helpful? Not really but what if you know the pitch you
need and want a custom gear made? That's easy too.
Number Of Teeth = 180 / Spiral Pitch
You will find some gear combinations don't physically work on our
machines. I have found that gears between 20-120 teeth work
pretty well with a few small exceptions. Larger and finer pitches
benefit greatly with reduction and multiplication gear sets.
Experience has taught me there are many different combinations
that achieve the same results.
I need to toss in a sales pitch here, if you need a custom gear
built for your Legacy, please contact me off list. I'll send you
a custom gear chart that shows the tooth count and the resulting
pitches on the legacy so you don't need to use any math at all!
-Tim
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