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  #1
dave sanderson
 
Default Confused: Tapers.... and other milling questions

Evening All,
Well the TOS is in the garage had to set the head all the way over
(much head scratching until I spotted the dowel holding it in
position...) but then there was 2" clearance thro the door
Now Im a bit confused about Tapers, The rather wonderful, typed
manual states: Spindle taper Int.Std No 40. No problem I thought, lets
look for some tooling.... Arrgh, many many different '40' types... Am
I right in thinking that essentially all types (BT, DIN, ISO, etc)
will fit, or do I have to be a bit careful? I notice that some seem to
have a button on the end, I assume for CNC auto changers, does it
unscrew? I have a drawbar in the mill, tho Ive no idea what the thread
is, I assume there is a std for it...

Do Clarkson chucks only hold the threaded milling cutters? whats the
general opinion of clarkson vs er chucks? I can see that I could use
an er for drilling to, but I suppose I should by a drill chuck for
that really.

one other thing, It has a nasty coolant tank, any tips for emptying /
cleaning it?

Ive just about got the lathe sussed, but I think Im back the the start
with this mill.


Cheers

Dave

 
  #2
John Stevenson
 
Default Re: Confused: Tapers.... and other milling questions

On Thu, 19 Jul 2007 12:46:01 -0700, dave sanderson
<david.sanderson@bem.fki-et.com> wrote:

>Evening All,
>Well the TOS is in the garage had to set the head all the way over
>(much head scratching until I spotted the dowel holding it in
>position...) but then there was 2" clearance thro the door
> Now Im a bit confused about Tapers, The rather wonderful, typed
>manual states: Spindle taper Int.Std No 40. No problem I thought, lets
>look for some tooling.... Arrgh, many many different '40' types... Am
>I right in thinking that essentially all types (BT, DIN, ISO, etc)
>will fit, or do I have to be a bit careful? I notice that some seem to
>have a button on the end, I assume for CNC auto changers, does it
>unscrew? I have a drawbar in the mill, tho Ive no idea what the thread
>is, I assume there is a std for it...


All type 40's will fit provided they have a thread on the end.
Some will be 5/8" whit and some 16mm, lengths can vary between NMTB
and BT because the BT don't have the parallel bit at the top.

Most BT's are metric and the ones with no top parallel bit and usually
the ones with the parallel bit are imperial.

There are always exceptions to the rule.
Best to make your drawbar to fit the shortest taper and use spacers on
anything longer.

>
>Do Clarkson chucks only hold the threaded milling cutters? whats the
>general opinion of clarkson vs er chucks? I can see that I could use
>an er for drilling to, but I suppose I should by a drill chuck for
>that really.


Clarkson only holds threaded cutters as it needs the thread to pull
the collet tight. You need 4 metric collets, 6mm, 10,, 12mm, 16mm and
4 imperial, 1/4", 3/8", 1/2" and 5/8" anything else and you are
stuffed.

ER can hold any size cutter drill or tap given a full set of collets.
each collet will hold a range of 1mm or 40 thou.
4 collets will hold the previous 8 sizes.

>
>one other thing, It has a nasty coolant tank, any tips for emptying /
>cleaning it?


You are asking now you have moved it inside ?
If it was outside 1/2 a stick of blasting plastic works wonders, tape
the windows first...........


>
>Ive just about got the lathe sussed, but I think Im back the the start
>with this mill.
>
>
>Cheers
>
>Dave

 
  #3
dave sanderson
 
Default Re: Confused: Tapers.... and other milling questions

On 19 Jul, 21:01, John Stevenson <j...@stevenson-engineers.co.uk>
wrote:
> On Thu, 19 Jul 2007 12:46:01 -0700, dave sanderson
>
> <david.sander...@bem.fki-et.com> wrote:
> >Evening All,
> >Well the TOS is in the garage had to set the head all the way over
> >(much head scratching until I spotted the dowel holding it in
> >position...) but then there was 2" clearance thro the door
> > Now Im a bit confused about Tapers, The rather wonderful, typed
> >manual states: Spindle taper Int.Std No 40. No problem I thought, lets
> >look for some tooling.... Arrgh, many many different '40' types... Am
> >I right in thinking that essentially all types (BT, DIN, ISO, etc)
> >will fit, or do I have to be a bit careful? I notice that some seem to
> >have a button on the end, I assume for CNC auto changers, does it
> >unscrew? I have a drawbar in the mill, tho Ive no idea what the thread
> >is, I assume there is a std for it...

>
> All type 40's will fit provided they have a thread on the end.
> Some will be 5/8" whit and some 16mm, lengths can vary between NMTB
> and BT because the BT don't have the parallel bit at the top.
>
> Most BT's are metric and the ones with no top parallel bit and usually
> the ones with the parallel bit are imperial.
>
> There are always exceptions to the rule.
> Best to make your drawbar to fit the shortest taper and use spacers on
> anything longer.
>
>


Good, thats almost as simple as I thought (hoped)

>

<snip about collet chucks>
I guess Ill get whichever turns up first at a reasonable price, and go
from there.

>
>
> >one other thing, It has a nasty coolant tank, any tips for emptying /
> >cleaning it?

>
> You are asking now you have moved it inside ?
> If it was outside 1/2 a stick of blasting plastic works wonders, tape
> the windows first...........
>

I seemed sensible to get it inside whilst I had the man with the
Hiab / big bar/ macinery skates available. I dont think explosives
inside the garage would be a good idea <shudder>

thanks

Dave





 
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