New lathe arriving!

[Tom Kitta]

Nice. I also got a new lathe - I got a small Chipmaster 5 x 10 from UK - its just over 11 swing with 20 between centers. I will try to get it running this year through I need to add new power cable to it and oil her up. I also need 4 jaw for her in the 6" or so range that is D1-3.

 

[DavidR8]

The lathe arrived today.

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[DavidR8]

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[YYCHM]

Looks good. How did you move it? Must weigh in at close to 600 lbs?

What's this thing?

 

[DavidR8]

@YYCHobbyMachinist
If you can believe it we slide the top with the lathe out of the back of the owners van onto the legs and then we carried into the shop.
It’s probably 450 lbs so not light.


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[DavidR8]

Looks good. How did you move it? Must weigh in at close to 600 lbs?

What's this thing?

View attachment 6999

That’s a Starret speed measurement device.

https://americanhistory.si.edu/collections/search/object/nmah_690549


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[YYCHM]

I'm surprised it's that light. In order to move my 3.5' SM (9X22) into my basement I had to disassemble it down to the bed.

What dia is the chuck? What HP is the motor?

 

[DavidR8]

I'm surprised it's that light. In order to move my 3.5' SM (9X22) into my basement I had to disassemble it down to the bed.

What dia is the chuck? What HP is the motor?

The catalogue weight is 505 lbs. It’s only a 3 1/2’ ft bed.
It has a 5” 3-jaw. I have a 6” 4-jaw and AXA QCTP on the way.


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[YYCHM]

My 3-Jaw is 5" as well. 505# with or with out the motor?

 

[DavidR8]

Good question @YYCHobbyMachinist, likely without as I don’t think SB didn’t sold the motors.
That said if the 1/2hp that’s on it is anything like the 1/2hp that was on my Beaver tablesaw, the motor likely weighs near 40 lbs alone.


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[Dabbler]

-- did you get the free AXA from that guy in the US?

 

[DavidR8]

No, I wanted a wedge style and got a smoking deal on one.


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[Dabbler]

I ended up buying a real aloris wedge for my BXA on my new lathe. A moment of weakness.

 

[YYCHM]

I have this very same switch on my SM. What do you think it's good for considering both machines have threaded spindles?

 

[DavidR8]

Well in a threading operation where the carriage needs to be returned to the start it would be handy.
I think more handy than using the reverse gears.
But I’m no expert.

Edit: on further reflection it doesn’t make sense when threading because when the tool hits the gutter you release the half nuts, withdraw the cross-slide and hand wheel the carriage back.

So really good question that I have no answer for.

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[Dabbler]

In using Bert's SB lathe over the years, the switch is more than adequate. No problem with the threaded on chucks. His switch was nearly identical. - I repaired it 3 times over those years and it was still going strong. Probably 1000 hors of use and tens of thousands of on/off cycles.

 

[YYCHM]

Making chips yet?

 

[historicalarms]

Actually lots of usable situations with that reversing switch on a threaded headstock...Opposite side cuts using Collets/draw bar set-ups as well as with between centers with a dogleg drive.

 

[YYCHM]

Actually lots of usable situations with that reversing switch on a threaded headstock...Opposite side cuts using Collets/draw bar set-ups as well as with between centers with a dogleg drive.

Seems to me, any operation attempted in reverse will tend to cause the chuck or drive plate to unscrew from the spindle. Or am I missing something here?

 

[Dabbler]

Cutting in reverse on a threaded spindle with a chuck threaded on is dangerous, even a slow speeds. Please to not tempt fate.

You can use collets, because they don't rely on threads to hold the chuck on.

The reverse can used in polishing/filing , even with a threaded chuck, as the loads on the work piece are tiny.