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Posted by Michael Koblic on February 10, 2010, 1:01 am
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This here looks a rather attractive machine particularly as it is on sale:
http://busybeetools.ca/cgi-bin/picture10?NTITEM=B2227L
Trying to find out more about it I looked at the manual but it is quite
useless. One of the questions I had was how is the chuck attached to the
spindle. The dealer tells me that there is a "flange" but any further
details have not been forthcoming so far.
Are there any standards that would describe such flange attachment? Are
there standard sizes? I am concerned about accessories (5C collet chuck??).
This machine is BTW only superficially similar to the Grizzly G0602 which I
understand has a 1-3/4 - 8TPI spindle.
--
Michael Koblic,
Campbell River, BC
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Posted by Bob AZ on February 10, 2010, 1:17 am
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>
One of the questions I had was how is the chuck attached to the
> spindle. The dealer tells me that there is a "flange" but any further
> details have not been forthcoming so far.
> Michael Koblic,
> Campbell River, BC
Michael
Probably attaches with threads as you mention. Don't buy from this
dealer if he does not know or does not find out.
Bob AZ
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Posted by Wild_Bill on February 10, 2010, 2:07 am
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Many lathe models from China have flanged spindles instead of threaded
"noses".
With flanged spindle mounts, there are either studs or threaded holes at the
back face of the chuck body, and holes around the flange to match the
fastening method.
Looking at the closeup pics of the chuck and headstock, shows the flange to
be the same size as the chuck.
There may be some common chucks in the 5" diameter range (and possibly a
little larger) that can be fitted/machined to adapt to the flange on this BB
machine.
Chucks much larger than 5" will likely require an adapter plate that the
user will need to perform some machining to mate the chuck with the spindle.
Oh, I noticed that an adapter plate is shown at the bottom of the
description, and separate from the optional 5" 4-jaw chuck.
The machine features/specs show that the spindle bore is 1" and has a MT4
taper.
The 1" bore excludes using a 5C collet draw tube.
Collet choices would be Morse tapers used with a drawbar, or adapt the MT4
to 3C collets, and use a draw tube.
The 3C collets allow feedthru of material (feeding long stock from the left
side), but the workpiece/stock diameter limit is smaller than 5C.
Morse taper collets don't allow workpiece/stock passthru. Collets sized MT4
may be relatively expensive. MT3 collets with an adapting MT3/MT4 sleeve
would allow cheaper MT3 collets to be used. A few MT4 collets in the larger
sizes might be desirable.
There are adapters for MT3 to 3C collets, but I don't know if there are
adapters that go directly from MT4 to 3C.
The draw tube for the 3C collets may be the same one available for the 9x20
models, or possibly adaptable with (maybe) minor modifications.
--
WB
.........
metalworking projects
www.kwagmire.com/metal_proj.html
> This here looks a rather attractive machine particularly as it is on sale:
>
> http://busybeetools.ca/cgi-bin/picture10?NTITEM=B2227L
>
> Trying to find out more about it I looked at the manual but it is quite
> useless. One of the questions I had was how is the chuck attached to the
> spindle. The dealer tells me that there is a "flange" but any further
> details have not been forthcoming so far.
>
> Are there any standards that would describe such flange attachment? Are
> there standard sizes? I am concerned about accessories (5C collet
> chuck??). This machine is BTW only superficially similar to the Grizzly
> G0602 which I understand has a 1-3/4 - 8TPI spindle.
>
> --
> Michael Koblic,
> Campbell River, BC
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Posted by Existential Angst on February 10, 2010, 2:23 am
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> This here looks a rather attractive machine particularly as it is on sale:
>
> http://busybeetools.ca/cgi-bin/picture10?NTITEM=B2227L
>
> Trying to find out more about it I looked at the manual but it is quite
> useless. One of the questions I had was how is the chuck attached to the
> spindle. The dealer tells me that there is a "flange" but any further
> details have not been forthcoming so far.
>
> Are there any standards that would describe such flange attachment? Are
> there standard sizes? I am concerned about accessories (5C collet
> chuck??). This machine is BTW only superficially similar to the Grizzly
> G0602 which I understand has a 1-3/4 - 8TPI spindle.
Enco makes (or made) a nice lathe with cam-lock chuck, that can fit a 5C
snap handle collet setup.
If you plan on switching often between lathe chuck and collets, cam-lock is
a dream.
The lathe you show is definitely not camlock, as you would see 3 add'l
square socket ditties, for the cams.
I wonder if 10" is large enough for a 5C collet system..... your 1" bore
would not be large enough for 5C.
--
EA
>
> --
> Michael Koblic,
> Campbell River, BC
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Posted by Michael Koblic on February 11, 2010, 8:49 pm
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>> This here looks a rather attractive machine particularly as it is on
>> sale:
>>
>> http://busybeetools.ca/cgi-bin/picture10?NTITEM=B2227L
>>
>> Trying to find out more about it I looked at the manual but it is quite
>> useless. One of the questions I had was how is the chuck attached to the
>> spindle. The dealer tells me that there is a "flange" but any further
>> details have not been forthcoming so far.
>>
>> Are there any standards that would describe such flange attachment? Are
>> there standard sizes? I am concerned about accessories (5C collet
>> chuck??). This machine is BTW only superficially similar to the Grizzly
>> G0602 which I understand has a 1-3/4 - 8TPI spindle.
>
> Enco makes (or made) a nice lathe with cam-lock chuck, that can fit a 5C
> snap handle collet setup.
> If you plan on switching often between lathe chuck and collets, cam-lock
> is a dream.
> The lathe you show is definitely not camlock, as you would see 3 add'l
> square socket ditties, for the cams.
>
> I wonder if 10" is large enough for a 5C collet system..... your 1" bore
> would not be large enough for 5C.
I just thought it might be an option as this guy installed a 5C collet on
his G0602 which also has 1" spindle bore:
http://groups.yahoo.com/group/10x22grizzlyandthelike/photos/album/1896867786/pic/1239071546/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
In any case it was just to illustrate a point. I wondered if the "flange"
thing would severely limit me in the choice of attachments. For a start I do
not know what quality the chucks offered with this machine are and it would
be nice to have the option to go with another manufacturer for replacements.
Furthermore, the 4-jaw chuck available for this machine is only 5" which is
a bit small. Does this mean one would have to manufacture a whole adapter
for a bigger chuck? One has to believe that there are adapters available for
this type of spindle commercially somewhere, but without further details how
does one go looking for them?
Incidentally their 7X8 lathe also has a flange which I understand is common.
LMS sell adapters for *3" flange*. That is the sort of standardization I was
looking for. Things would be even simpler for a 9X20 with a 1.5"-8TPI or
M39X4mm spindle. Adapters for 3,4,5, or 6" chucks are freely available.
Meanwhile I got a response from the dealer and here it is:
"We do not have exact dimentions of the spindle flange, but it is 5" in
diameter and is machined to fit behind the chuck which comes with the lathe.
the holes are approximately 3.723" apart. One side of the adaptor is
machined in a similar design as the back of the 3 jaw chuck and the other
side is machined to accept the 4 jaw chuck. Since you want to use a
different chuck we suggest you wait until you acquire the lathe and the
chuck then machine the adaptor accordingly. "
I am not sure what to make of it.
--
Michael Koblic,
Campbell River, BC
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