Re: Motor Cuts using Steady Rest
Too much "Feed"?
By
atkinson.railroad@...
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#120105
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Re: Motor Cuts using Steady Rest
Is it only when using a steady rest that this happens? You probably need to
check the amps.
[email protected]> wrote:
By
Ralph Hulslander
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#120104
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Motor Cuts using Steady Rest
The motor on my LMS 7x16 cuts out turning down 360 brass when using a steady rest with a HSS tool. The 7" 1.25" brass rod is centered in my 4-jaw cuck to 0.005" and the Steady Rest is 2.25" back from
By
CBJessee-N4SRN
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#120103
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Re: CJ0618 lead screw
The I purchased last came with metric lead screw 2.00mm
I do most time both inch and metric with dies.
If doing projects that needs both inside and outside threads I just 2.00, 1.00 or 0.50 mm
By
davesmith1800
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#120102
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Re: CJ0618 lead screw
Contact LittleMachineShop and see what they say instead of relying on just the website.? They do know a thing or two.
By
MikeK
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#120101
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Re: CJ0618 lead screw
I have a handwheel not a crank so it no problem with power reverse.
I have cut many threads this way.
[email protected]> wrote:
By
John Mattis
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#120100
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Re: CJ0618 lead screw
The problem with cutting threads of a system different from the lead screw is that the gears can't be disengaged & re-engaged in the same position. You have to keep them engaged the whole time and
By
Roy
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#120099
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Re: CJ0618 lead screw
I still have my 20-year-old mini lathe and it is just fine the way it came.
Regards,
John Mattis (retired mechanical engineer)
[email protected]> wrote:
By
John Mattis
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#120098
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Re: CJ0618 lead screw
Pierre, I believe both versions of the lathe use module 1 gears. And I think they are sold with same set of nylon gears. But I could be wrong about that.
I have done some single point threading on
By
@ThomasKeefe
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#120097
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Re: CJ0618 lead screw
With my metric lathe I got the imperial 16 TPI leadscrew and half nuts, I don’t recall getting a spare apron so I don’t think that’s a problem.
I’ve only had to cut a few imperial threads,
By
Tony Smith
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#120096
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Re: CJ0618 lead screw
Wasn't thinking about that but st a minimum I'm pretty sure you're going to have to swap the half nut actuator shaft and maybe the apron. The nuts use a different engagement to the shaft and I don't
By
Ryan H
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#120095
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Re: CJ0618 lead screw
Tony Smith, I suspect you are right about shipping. But I will keep that in mind. Thanks.
Tom
By
@ThomasKeefe
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#120094
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Re: CJ0618 lead screw
Roy, I am still considering my options and may decide it's not worth switching.
Tom
By
@ThomasKeefe
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#120093
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Re: CJ0618 lead screw
Grizzly has them for their 7x14 which is like the Real Bull. The part number is P0765129 and lists for $53.50. You would also need to change the half nuts. The part number is P0765075 and lists for
By
paul mcclintic
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#120092
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Re: CJ0618 lead screw
Hi Thomas,
If you want to replace a metric lead screw by an imperial one,
the pinion sets, as per the threading table of your lathe, will
need to be modified. This is mandatory
By
Pierre-Raymond Rondelle
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#120091
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Re: CJ0618 lead screw
My Real Bull came fitted with a metric leadscrew, and for some reason had the imperial one as well.
I’ve never had to use the imperial one, but shipping (I’m in Oz) would be a bit steep.
By
Tony Smith
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#120090
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Re: CJ0618 lead screw
Why are you considering replacing the lead screw?
There are numerous sites that provide comprehensive threading charts for either flavor lead screw; with 3-D printing, additional change gears are
By
Roy
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#120089
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Re: CJ0618 lead screw
The CJ0618 is a Real bull lathe. If I remember right (don't quote me 100%) the Grizzly 7X mini is also. Take a look there. It's easy enough to tell a Sieg from a RB by the cross slide. The RB has the
By
Ryan H
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#120088
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CJ0618 lead screw
When I purchased my mini lathe (about 5yrs ago) it was advertised as having a 16tpi lead screw. I recently decided to check and noticed that is not the case. It is actually the 1.5mm pitch leadscrew
By
@ThomasKeefe
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#120087
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Re: Pencil Sharpener
Roy
Yes, it should be possible , on the paper.
However, I have used my 7x16 in many years to make a Sterling machine, no one will start.
This Jupiter pencil sharpener was very popular for many, many
By
Johannes
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#120086
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