Re: is this an original minilathe
I remember the??6x18" Atlas / Craftsman the model makers like the lathe in 1960's.?
The biggest problem was with ?" spindle hole and it was very long for work bench. There next option was 9" south bend witch they would buy was because of weight (350 pounds) and cost.
They call the??6x18" Atlas / Craftsman a Miro lathe.?
Dave?
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Re: $1000 Budget: Which 7 x 14 to buy?
Paul Fox
4:56am? ?
On Sat, Dec 16, 2023 at 05:54 AM, Craig Hopewell wrote:
Recent posts above should dispel any consideration of the 7x"10" lathe. This variant, 7x10, has been so advertised for decades, and it is NOT 10", it is 8".?
Can someone explain how the length measurement is usually done, and how HF fudges that measurement to make 8 == 10 ? I'm convinced that I don't want one -- just trying to understand.
paul
It is simple. Center to Center.? Most lathes will never be used witch give max capacity.? I found the Chinese manufacturers are using Chuck to Center witch is about 2?" shorter but calling it Center to Center.?? It like lathe I purchased in November they a 14" tech data is 13.8" Chuck to Center.? But use Centers it is Center to Center is almost 16" . So you can buy a 10 cc lathe put Chuck on and it is 7?" . You have to read the tech data on each lathe.? Dave?
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Re: is this an original minilathe
On Sun, Jan 14, 2024 at 11:25 AM, mike allen wrote:
Craftsman sold 2 different lathes that would fall into the class as these 7" lathes . I have had a couple , ( though missing a tailstock for one ) for several years now & so far they only occupy shelf space , Though they appear to be quit nice lathes talkin to other folks that have one they are a lesson in frustration . One guy told me that if a guy can good parts on one of these 109 series lathes they he could make fantastic parts on a real lathe . These lathe were made in the late 30's & up .
People often lump the Craftsman 6 inch "109" lathes and Atlas made 6 inch "101" lathes together as though they are the same lathe. They are not remotely related beyond both being sold by Sears and using the Craftsman name (the 109s were also sold by Sears using the Dunlap name). The Atlas made "101" lathes cost 4x as much and are a much more serious lathe. The 6x18" Atlas / Craftsman 101.7301 (1939-57), 101.21400 (1958-72) and 101.21200 (1973-77) are very nice small lathes, with all the features you would expect to find on a small lathe. They compare well to the 7" mini lathes in capability, a little smaller swing and spindle bore, a little greater bed length, and a back gear giving good low speed torque. The 109 lathes on the other hand are more of a high end toy for technically minded teenagers. Fully functional but very light duty, perhaps comparable to something like the Sieg C1 Micro lathe (5.5x9.8") just bigger. These were sold as both a Dunlap 6x18" and after WW2 as a Craftsman 6x12". They actually are not terrible, just misunderstood and people expect more from them, than they were ever intended to provide. If treated as a small wood lathe with some metal cutting capability they are not a terrible hobbyist lathe, just not a particularly good hobbyist metal cutting lathe. The confusion caused by both being branded Craftsman and having the same swing is unfortunate because it seems that many people have bought 109s thinking they were the same as an Atlas, and likewise many turn their noses up and dismiss the far superior Atlas made lathes having seen the comments made about the 109 lathes and not understanding they are not the same lathe.
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Re: $1000 Budget: Which 7 x 14 to buy?
An unscrupulous marketing person might grind the centers so they sit less proud in the tapers to generate a more generous distance between...
On Wednesday, January 17th, 2024 at 8:37 AM, Aaron Woods <awoods550@...> wrote:
On Wed, Jan 17, 2024 at 04:56 AM, Paul Fox wrote:Can someone explain how the length measurement is usually done, and how HF fudges that measurement to make 8 == 10 ?? ?I'm convinced that I don't want one -- just trying to understand.paul
The 7x10" measurement probably came about through incorrect measurement and / or very poor rounding up of the metric conversion and has stuck. It is not just HF, pretty much all of the sellers that market these in inches use that term for the Sieg C2 Model 200. Sieg itself lists these lathes with a swing of 180mm (7.08") and between centers distance of 200mm (ie Model 200). Properly converted 200mm = 7.87".
The between centers distance is the length of a part that can be held on the lathe between centers. You can find some variation on identical lathes based on the centers used. For example the very common 9x20 lathe (aka Grizzly G4000 / Jet BD920) is listed by different vendors as either a 9x19 or a 9x20 lathe. This difference is based on whether they supply the lathe with a live or dead center for the tail stock. A live center is about 1" longer giving lathes that ship with a live center a slightly shorter 19" between centers.
I suspect as the first of the Chinese mini lathes to arrive, the person tasked with measuring and converting to inches, measured the distance between the spindle and tail stock without centers in place giving a number closer to 10". When the Model 300 (300mm aka 11.8") arrived, the person given the task of measuring was more competent and measured correctly with centers in place.
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Re: $1000 Budget: Which 7 x 14 to buy?
On Wed, Jan 17, 2024 at 04:56 AM, Paul Fox wrote:Can someone explain how the length measurement is usually done, and how HF fudges that measurement to make 8 == 10 ?? ?I'm convinced that I don't want one -- just trying to understand.paul
The 7x10" measurement probably came about through incorrect measurement and / or very poor rounding up of the metric conversion and has stuck. It is not just HF, pretty much all of the sellers that market these in inches use that term for the Sieg C2 Model 200. Sieg itself lists these lathes with a swing of 180mm (7.08") and between centers distance of 200mm (ie Model 200). Properly converted 200mm = 7.87". The between centers distance is the length of a part that can be held on the lathe between centers. You can find some variation on identical lathes based on the centers used. For example the very common 9x20 lathe (aka Grizzly G4000 / Jet BD920) is listed by different vendors as either a 9x19 or a 9x20 lathe. This difference is based on whether they supply the lathe with a live or dead center for the tail stock. A live center is about 1" longer giving lathes that ship with a live center a slightly shorter 19" between centers. I suspect as the first of the Chinese mini lathes to arrive, the person tasked with measuring and converting to inches, measured the distance between the spindle and tail stock without centers in place giving a number closer to 10". When the Model 300 (300mm aka 11.8") arrived, the person given the task of measuring was more competent and measured correctly with centers in place.
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Re: minilathe for children.
I know somebody who bought one of those mini wood lathes. Not sure it was exactly the same as that one, but similar. He was pleasantly surprised by how well it worked. Obviously not going to make table legs with it.
I'll leave the grandparenting up to you regarding the use by an 8 year old. With adult supervision, I think it sounds like a great idea. Kids love to make things.
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Re: $1000 Budget: Which 7 x 14 to buy?
The "length" is the maximum length you can turn between dead centers with the tail stock fully seated at the far right of the bed; no chuck, and if your tail stock center doesn't seat with the tail stock quill almost to the minimum end of it's travel you will lose some.
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Re: $1000 Budget: Which 7 x 14 to buy?
"Can someone explain how the length measurement is usually done, and how HF fudges that measurement to make 8 = 10?"
I don't think it's fudging. The standard method for lathe capacity has always been the length between centers:?
?
But people don't usually turn between centers nowadays,? and a minilathe normally comes with a three-jaw chuck and a ball-bearing tailstock center. Both of these stick out a LOT more than a plain center, so the distance you measure on your? lathe will be shorter than HF advertises.
Mike Taglieri?
On Wed, Jan 17, 2024, 7:56 AM Paul Fox < pgf@...> wrote: On Sat, Dec 16, 2023 at 05:54 AM, Craig Hopewell wrote:
Recent posts above should dispel any consideration of the 7x"10" lathe.? ?This variant, 7x10, has been so advertised for decades, and it is NOT 10", it is 8".?
Can someone explain how the length measurement is usually done, and how HF fudges that measurement to make 8 == 10 ?? ?I'm convinced that I don't want one -- just trying to understand.
paul
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Re: $1000 Budget: Which 7 x 14 to buy?
On Sat, Dec 16, 2023 at 05:54 AM, Craig Hopewell wrote:
Recent posts above should dispel any consideration of the 7x"10" lathe.? ?This variant, 7x10, has been so advertised for decades, and it is NOT 10", it is 8".?
Can someone explain how the length measurement is usually done, and how HF fudges that measurement to make 8 == 10 ?? ?I'm convinced that I don't want one -- just trying to understand. paul
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Doug Pfaff
6:52pm? ?
Dave,
Not that I'm aware of. Ours isn't a very common name as German surnames go, but it could be possible.
Doug
I very really see that last name and I when to school with 2 Pfaff.? With my name it is everywhere.? My mother is also a German name Willz it was changed in WW one to Wills.? Dave?
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Re: Extension cross slide
On Tuesday, January 16, 2024 at 06:38:55 PM PST, davesmith1800 <davesmith1@...> wrote:
Here drawing using to make cross slide exstension.?? I am move the nut 1" [25.4mm] and making a longer screw. I simplified by not installing a power feed.? I do not use power cross feed that mush. The PDF file prints better ![]() Dave
Attachments:
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Re: New topic ¡ª- Cutting a thread for a very old wooden clamp.
David,
I have cut very clean threads in wood dowels and externally also in hardwoods. I made up a four flute 60degree thread mill in a rotary tool similar to a Dremel. And mounted it the the Toolpost of my minilathe and used the leadscrew and half nuts to cut the thread. Beautiful result and not hard to do. Looks extremely nice when using darker exotic hardwood.
Dick
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Dave,
Not that I'm aware of. Ours isn't a very common name as German surnames go, but it could be possible.
Doug
On Tue, Jan 16, 2024 at 8:01 PM, davesmith1800 <davesmith1@...> wrote: Doug Pfaff
3:47pm? ?
That'd be a #3 Morse Taper
Have any relatives living in Fresno or Clovis California? Dave?
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Re: Extension cross slide
The old screw is my screw and compare to your screw.?
Dave?
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Re: Extension cross slide
Here drawing using to make cross slide exstension.?? I am move the nut 1" [25.4mm] and making a longer screw. I simplified by not installing a power feed.? I do not use power cross feed that mush. The PDF file prints better  Dave
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Re: New topic ¡ª- Cutting a thread for a very old wooden clamp.
A little time spent internet searching will probably save a lot of shop time & give better results than just diving in. There are lots of wood threading tools around, both hand & router based. Since you'll be doing a lot of cross grain cutting, tool sharpness is essential.
?<??>
Roy
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Re: minilathe for children.
mike allen
3:53pm? ?
I have a VOM with vacuum tubes in it tha tmy dad built after returning from Korea . I built my first guitar amp with my dad , a Heathkit .I helped him build color TV's for some of the family members cause they were so expensive to buy in their early days . Our first color TV had a remote for turning on & changing the channel . The remote had a 20' cord & there was IIRC a solenoid on the back of the channel switch that ya could hear out in the garage anytime someoe changed channels . My bedroom was above the family room & my folks couldn't use the remote after I went to bed cause it woke me up . . I had a bud that had a 42 Dodge pickup with a tube radio , we'd hop in the truck to smoke a joint & turn the radio , after 3-4 minutes it came on full blast & always made us jump .
animal
On 1/16/24 12:34 PM, davesmith1800 wrote:
toggle quoted messageShow quoted text
?Reply Unlike More
What was surprising about project was the number of views. Most time with machine and weld I am lucky to see a few hundred.? This one is over 63,000 views on something that has not been built since the 1970's.? ?I was going to use tube 12AU7 but cost of transformer was high . Next was a transistor at last a chip work better than tube. The chip cost under $2.00. By this time the front was made with the world Transistor VTVM.? I used a lathe for making the probes and a mini lathe would have been great Dave?
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Doug Pfaff
3:47pm? ?
That'd be a #3 Morse Taper
Have any relatives living in Fresno or Clovis California? Dave?
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Re: minilathe for children.
I have a VOM with vacuum tubes in it tha tmy dad built after
returning from Korea . I built my first guitar amp with my dad? ,
a Heathkit .I helped him build color TV's for some of the family
members cause they were so expensive to buy in their early days .
Our first color TV had a remote for turning on & changing the
channel . The remote had a 20' cord & there? was IIRC a
solenoid on the back of the channel switch that ya could hear out
in the garage anytime someoe changed channels . My bedroom was
above the family room & my folks couldn't use the remote after
I went to bed? cause it woke me up? . . I had a bud that had a 42
Dodge pickup with a tube radio , we'd hop in the truck to smoke a
joint & turn the radio , after 3-4 minutes it came on full
blast & always made us jump .
animal
On 1/16/24 12:34 PM, davesmith1800
wrote:
toggle quoted message
Show quoted text
Groups.io
?7x12MiniLathe Messages
?
Re: minilathe for children.
mike allen
11:10am? ?
? ? ? ? 6L6 , 12AX7 , if a kid knows what those are
for he's got a chance . Like ya mentioned robotic's seem to get
kids interested . The Arduinos & Raspberry pi's seem to be
getting more & more popular with kids today . I've been
trying to teach my self arduino for a couple of years now &
if I was graded I'd be taking Arduino all over again & again
. I think Nixie tubes are a gateway to electronice for some .
They see a Nixie tube clock that they think is bitchin but their
expensive , so they watch some youtubes & get a kit &
build one , then they think hmm maybe I'm on to something here .
I never had a new computer till @ 7-8 years back , I always made
ours . I also made several for several other familys & some
folks that could never afford one back in the late 1990's early
2000's . One of my sons was always lookin over my shoulder as I
built them askin questions & finally by the time he hit Hi
school he had built several for himself & friends . He
decided he wanted to learn to be a programmer for his career ,
He had one teacher that didn't like him & constantly ignored
him in class would tell him he was askin stupid questions &
after a semester he said screw it & walked away from
programming . I guess what I'm trying to say with the last part
of my rant here is that without a solid foundation that a kid
can ask & learn from some of them don't have a chance .?
I still have a tube tester.?
Last year project was designed and built [b] Transistor VTVM.?
Works great[/b]?
I post on
Dave?
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That'd be a #3 Morse Taper.
On Tue, Jan 16, 2024 at 3:42 PM, Thomas Key <takey89@...> wrote: I have a Homier Speedway 7x10 mini lathe and would like to know what Morse taper the headstock has.?
Tom
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davesmith1800
chrisser
OldToolmaker