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Re: A Great Bit of Craftsman Machining

 

I think I have some of these lying around that I never put in.

Is there a recommendation on the appropriate hole size to get a good fit?

On Monday, January 8th, 2024 at 11:43 AM, davesmith1800 <davesmith1@...> wrote:

This whatI am waiting for.?

Dave?
Re: A Great Bit of Craftsman Machining

 

This whatI am waiting for.?

Dave?
Re: A Great Bit of Craftsman Machining

 
Edited

OldToolmaker 5:54am? ?
I have a ball oilers installed for use with an oil can with a tip to match. Very neat and not oil all over everything. That is how my minilathe gets its oil. Including the ways.
Dick
I agree I have some on order.?

Dave?

https://www.amazon.com/s?k=ball+oilers&adgrpid=1339206841080920&hvadid=83700699417457&hvbmt=bp&hvdev=m&hvlocphy=44303&hvnetw=o&hvqmt=p&hvtargid=kwd-83701452862213%3Aloc-190&hydadcr=17566_13472009&tag=hydusmmsn-20&ref=pd_sl_2mukp3v7of_po&hvqmt=p&hvtargid=kwd-83701452862213%3Aloc-190&hydadcr=17566_13472009&tag=hydusmmsn-20&ref=pd_sl_2mukp3v7of_p
Re: A Great Bit of Craftsman Machining

 

I have a ball oilers installed for use with an oil can with a tip to match. Very neat and not oil all over everything. That is how my minilathe gets its oil. Including the ways.
Dick
Re: A Great Bit of Craftsman Machining

 

Most do not know most machinist do like oiling the equipment. The machine shop will have the guy cleaning the chips out tool do the lub too.?

The only way my tools got oil if I used oil can. Since piad for tool it got a lot of oil too.

Dave?
Re: A Great Bit of Craftsman Machining

 
Edited

OldToolmaker 4:40pm? ?
Dave,
While I agree taper roller bearings are not expressly needed on the minilathe they do fit and work well in this application. I have used both in my minilathes.
The ball bearings are quieter. I don¡¯t agree that a zirk is required

The Zirk in the correct location will push out the old grease.? But flip side almost no one use the zirk after first week.?

I have install thousands of zerks knowing the odds of them use was low. But there are seal not {shield or open} and pack with grease before shipping.??

I like seal ball bearings just install and no worries for 30 or 40 years.?

Dave
Re: A Great Bit of Craftsman Machining

 

Dave,
While I agree taper roller bearings are not expressly needed on the minilathe they do fit and work well in this application. I have used both in my minilathes.
The ball bearings are quieter. I don¡¯t agree that a zirk is required. The taper roller bears will run for years with just a pack. Occasionally I would open the headstock and give the taper roller bearings a shot of spray grease with a straw tube. Easy to maintain and not messy.
Dick
Re: A Great Bit of Craftsman Machining

 



The tapered roller bearings have great load capability at lower speeds.? It is over kill for this size lathe .

There are down side from a tapered roller bearings over a seal ball bearing.
Lubrication most just just pack . It need a zerk? for grease?
Installing needs in very clean room and may need more parts to seal the tapered roller bearings most skep this part.?

Other than that is great bear for a oil bath head stock.?

The capacity of a 6206 is 2,500 pounds?
https://www.mcmaster.com/5972K342/

Dave?
Re: A Great Bit of Craftsman Machining

 

The best way to go is angular contact bearings.? ? But installing is more difficult - as per bearing manufacturers directions and requirements.? ?That is why I went with tapered roller bearings.
--
Lone Tree, Colorado? ?USA
Re: Morse tapper in tail stock

 

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I got a MT2- JT2 adapter like this (might have even been this one from Grizzly )?

I had to cut off the tang and enough of the shaft to get it to fit the tailstock; it wasn¡¯t hardened so it was easy.

I even have a genuine Jacobs chuck, but it¡¯s one of their low end cheap ones made for the big box stores.

On Jan 6, 2024, at 7:43 PM, Roy via <roylowenthal@...> wrote:

Start with the Jacobs site to identify your chuck & see how to mount it.

?<??>

Then, you can decide what to do; either buy or make a suitable mounting for it, keeping in mind that genuine Jacobs goodies are pricier than generic stuff.

Roy

--?
Bruce Johnson

"Wherever you go, there you are." B. Banzai, PhD

Videos

 
Edited

Here is a video on making a single crank on a lathe

machining_eccentric_crankshaft_nv23.mp4
machining_eccentric_crankshaft_nv23.mp4

Re: Morse tapper in tail stock

 

Start with the Jacobs site to identify your chuck & see how to mount it.

?<??>

Then, you can decide what to do; either buy or make a suitable mounting for it, keeping in mind that genuine Jacobs goodies are pricier than generic stuff.

Roy
Re: Morse tapper in tail stock

 

That is a MT1 to MT2 adapter, you can not screw your jacobs chuck to that.



On Sat, Jan 6, 2024 at 12:11?PM Jacques Savard <jacquessavard@...> wrote:

I see? this?


somebody? untherstand? the? data? ?whit? this? site

but? do? not know? if? it? fix? my problem?

the jacob chock? ?is? 1|\2? but? the screw? in back? is ?


jack 47 71




--
Buffalo John
Re: A Great Bit of Craftsman Machining

 

mike allen
11:50am? ?
? ? ? ? That depend son which brand 6206 ya buy , a Amazon, Timken or a SKF ...
animal
After going to all work of getting old bearing out.
This is not time for cheap ball bearing?
You can find high quality and a reasonable price.?
Seal is important part for long life.?

Dave?
Re: Morse tapper in tail stock

 


I see? this?


somebody? untherstand? the? data? ?whit? this? site

but? do? not know? if? it? fix? my problem?

the jacob chock? ?is? 1|\2? but? the screw? in back? is ?


jack 47 71
Re: A Great Bit of Craftsman Machining

 

¿ªÔÆÌåÓý

??? ??? That depend son which brand 6206 ya buy , a Amazon, Timken? or a SKF ...

animal

On 1/6/24 8:25 AM, davesmith1800 wrote:

Some of basic improvements are simple for most to do .
The top is a good tool post.

Some are not is motor choice.? They use is low cost motor. Most run at 4,000 to 6,000 rpm using a center pulley. Great torque to spindle.? But correct motor is very costly $1,200.00 and just use one belt.

So I just use the motor that comes with lathe and deal with by getting a wider belt.?
FYI The reson for high horse power is good torque at lower speeds.? Rule thumb?
Top seed is 1,000 rpm at 1 hp. At 500 rpm the power is ?hp. At 250 rpm then ?hp.?
I like the DC drive over the old ways of moving belt.?

I seen videos on change the head stock bearings. A seal 6206 ball bearing should last around 50,000 hour of use. There is some other problem?

Dave?
Re: Extension cross slide

 

Now get ready to make feed screw and spacer. Just got follower rest and install it . Mill on carriage is not need for this modification?

Any last comments?

Dave?

CROSS FEED SCREW JAN 5 2024 CROSS FEED SCREW EXT JAN 6 24 _1_.pdf
CROSS FEED SCREW JAN 5 2024 CROSS FEED SCREW EXT JAN 6 24 _1_.pdf

Re: A Great Bit of Craftsman Machining

 

Some of basic improvements are simple for most to do .
The top is a good tool post.

Some are not is motor choice.? They use is low cost motor. Most run at 4,000 to 6,000 rpm using a center pulley. Great torque to spindle.? But correct motor is very costly $1,200.00 and just use one belt.

So I just use the motor that comes with lathe and deal with by getting a wider belt.?
FYI The reson for high horse power is good torque at lower speeds.? Rule thumb?
Top seed is 1,000 rpm at 1 hp. At 500 rpm the power is ?hp. At 250 rpm then ?hp.?
I like the DC drive over the old ways of moving belt.?

I seen videos on change the head stock bearings. A seal 6206 ball bearing should last around 50,000 hour of use. There is some other problem?

Dave?
Re: A Great Bit of Craftsman Machining

 

For some one new to this hobby it is good channel.??
He did lot that help improve his skills.?

Dave?
Re: A Great Bit of Craftsman Machining

 

I recommend the channel. ?He uses interesting mill set ups on the mini lathe. For example, the cross slide modifications to access the nuts for setting the angle are not the rehashed ideas on youtube. ?Another is retrofitting a sewing machine servo to the mini lathe with custom control levers.?
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