??? Interesting . I was able to get to that Clocks magazine
article , so I have some reading to do . I could see a 3D printer
come in handy for making index plates with the proper amount of
teeth I then using one of the prints on the indexing side of the
mini lathe .
WHen I first got back in to machining? I spent way way toomuch
time following a few clockmaker quys on youtube & was so
amazed whth what thm guys could pull of with those almost mirco
lathes .
I kinda kick my self , many years back I was offered I think it
was a Lorch, but it coud have been a Levin watch makers lathe with
a ka-zillion collets& other attachments for $ 200.00 , & I
turned that offer down . then years later I was at a yard sale
& bought my first MIll , a Harbor Freight Big Red mill/drill .
I put a bunch of other things I wanted in a pile & told the
guy to give me his best price . We went back & fourth a couple
times & finally he? gave me his last # & I remember that
there was a real small lathe on one of the benches & I told
him , Ok I'll do that price but ya have to toss in the little home
made lathe & help me load the mill in my truck . He was pretty
tired of messing with me & agreed So we loaded everything in
my truck & I left . a few days later I found out that that
home made lathe was actually a Taig lathe with just about every
attachment they had except for the leadscrew & some collets .
I have used that Taig a bunch since then & really enjoy
making small parts with it . It's between a Mini lathe & a
actual Watch makers? lathe .
sorry for the long winded reply , but there isn't much other
stuff going on here .
thanks for the link
animal
On 5/11/25 7:21 PM, Johannes wrote:
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Show quoted text
Mike
"SO I'm guessin that ya have a stop of some kind so ya don't
cut too deep with the gear cutter? ?"
If I understand your question correct,? this is my way to cut a
clock wheel:
A clock wheel has shape. It is called Epicycloidal. Full of
mathematic and practical experience.
The main reason is to reduce friction to pinion to be as little
as possible. Very little oil is used in a clock.
The tooth top can have a tip.
So before cutting I paint the surface, and when the tip is only
a small line. I know the depth is correct.
Johannes
Mexico
thanks , I totally missed the wheel in the earlier pic , I ws
too busy checkin out the gear cutting setup . I've seen folks
also use saw blade's , if ya can find one with the tooth
count? needed .
thanks for sharing . SO I'm guessin that ya have a stop of
some kind so ya don't cut too deep with the gear cutter? ?
thanks
animal
On 5/11/25 1:37 PM, Johannes
wrote:
Hi Mike
As you have seen on the other pictures (hopefully), there is
a big wheel on the left side of the lathe, fastened to the
spindle.
My wheel has a circumflex of 1502 mm, however the distance
between the millimeter marks is also a mark, so I have 3004
"marks" . My eyes are not as they were, so I have put on a
magnetifying glass.
So, if you are standing on the same foot, in the same
position and use the same eye, you can get a good reading.
With the Excel program, it is easy to do the calculation. My
reading of hundred is 0 or 5.
Ex.? 91,35?
On the picture you can see a thin red needle. If you put the
2 needles in line, it will be easier to do a good reading .
The relation between reading wheel and clock wheel is around
10:1.
However, it happens I have to make a new clock wheel.
/Johannes
Mexico
??? ??? Thats pretty slick., how are ya keeping track on
the indexing when ya gut? gears ? Is there something on
the other side of the spindle that locks in position ?
thanks
On 5/11/25 8:44 AM,
Johannes wrote:
Hi
The nut is fastened on a little plate on the back side
of the saddle.
The motor is a very cheap , higher speed water pump
motor. Silent and strong enough for the job.
As you can see, I have replaced the original press board
with a brass plate, it is longer and has an extra
contact pressure on the outside of the bed-way. This is
done on the back side also. This gave me a much better
anti-twist of the saddle.
This new lead screw is easy to set up with 2 screws for
special jobs. To cut a clock wheel with 144 teeth takes
time.?
One tooth wrong, you have to start again.
Good advice: Start with the biggest "wheel" first.
Johannes
Mexico
? ? ?
