Vintage Powermatic lathes

Jim, the threading on the PM90 was 1-1/2 x 8. The other info seems about
right. It was a much heavier machine than the PM45. If you can find the first
book by Dale Nish, you will see illustrations of both models.

Roy Girolami
Apex, NC

Jim Wilson <[email protected]> wrote in message news:<[email protected]>...
> What are the differences between the Powermatic 45 and Powermatic 90
> lathes? Here's what I've gleaned so far from the net. Much of the '45
> info came from a pdf manual I found at oldwwmachines.com or.net. Is any
> of it wrong? If you have a manual or can otherwise can help me fill in
> the blanks, I'd be grateful.
>
> Thanks,
>
> Jim
>
>

Mostly different in weight and with different threads on the
spindles. Some 45's came with stepped pulleys giving discrete speeds,
others had variable speed. I think the 90's were only variable
speed -- but I could be wrong on that. I also believe the banjo's are
interchangable; certainly the tool rests interchange. Not sure about
the tailstocks, but they might interchange since swing over bed is the
same (I think).

The fine folks at PM will send you manuals if you want/need them -- I
called them a few months back and the wait was short, the conversation
pleasant and the (free) manuals appeared in my mailbox a few days
later. If you happen to have model and serial numbers they will
even send you manuals of the appropriate vintage and options.

hex
-30-

Roy Girolami wrote...
> Jim, the threading on the PM90 was 1-1/2 x 8. The other info seems about
> right. It was a much heavier machine than the PM45. If you can find the
> first book by Dale Nish, you will see illustrations of both models.

Thanks, Roy. Do you happen to have access to a PM90? If so, could you
confirm the bed and gap lengths?

I'm also a bit curious about the indexing plate. If the holes (or teeth)
are spaced evenly every 6 degrees, then you couldn't index at 22-1/2
degrees, or even at 45 degrees, and this seems odd to me.

Thanks again!

Jim


Powermatic 90
-----------------
(I'd like to do an item-by-item comparison with the
'45, but couldn't find as much info on the '90. Much of
this is guesswork.)

swing: 12" over bed; 17" over gap
bed: (?)" L, 38" c-c, (5-1/4"?) gap
OALxWxH: 67" x 16" x 46-1/2"
motor: 1 HP; 1800 RPM
speeds:
variable speed: (5) 330-2100
step: (available?)
headstock:
taper: MT2
threads: 1-1/2"-8
bore: ?
indexes: 60 x 6 (?) degrees
spindle height from floor: (42-1/4")
tailstock:
taper: MT2
quill travel: (?)
approx wt: 600 lbs

"My Old Tools" <[email protected]> wrote in message
news:[email protected]...
> Yep. The manual set cost me over $300. I pay $6.00 per month for hosting
> and $10 per month for ISP, not to mention phone line. The scanner wasn't
> free either and neither is my time. You can get some of the manuals from
> PM, but many of the older machines are no longer available from them. Try
> asking for a #10 mortiser or the single end tennoner. I can't afford the
> space for all of them on-line, so when someone needs one, I send it. If
you
> don't need it, or if PM can send it, great. If you need it on Saturday
> night for a Sunday auction, its available.
>
> --
> Ross
> www.myoldtools.com


Why don't you just send the scanned copies to http://www.owwm and let them
host it. Then you won't have this huge 16.00 outlay of cash to worry about
every month.

I take it you're not a "bend over" guy?

"PM6564" <[email protected]> wrote in message
news:[email protected]...
>
> "My Old Tools" <[email protected]> wrote in message
> news:[email protected]...
> > Both of the factory manuals are available from my website.

>
> And you're charging 10.00 for a scanned copy? What a stand up guy you
are.
>
>

That is a steep price. Especially when he did not write it.

On Fri, 26 Sep 2003 10:15:38 GMT, "PM6564" <[email protected]> wrote:

>
>"My Old Tools" <[email protected]> wrote in message
>news:[email protected]...
>> Both of the factory manuals are available from my website.
>>
>> --
>> Ross
>> www.myoldtools.com
>
>
>And you're charging 10.00 for a scanned copy? What a stand up guy you are.
>

"My Old Tools" <[email protected]> wrote in message
news:[email protected]...
> Both of the factory manuals are available from my website.
>
> --
> Ross
> www.myoldtools.com


And you're charging 10.00 for a scanned copy? What a stand up guy you are.

When the man makes a point the man makes a point.

UA100, who thinks Ross forgot to mention the inordinate
amount of room that dirty 'chinery paper takes up...

Both of the factory manuals are available from my website.

--
Ross
www.myoldtools.com
"Jim Wilson" <[email protected]> wrote in message
news:[email protected]...
> What are the differences between the Powermatic 45 and Powermatic 90
> lathes? Here's what I've gleaned so far from the net. Much of the '45
> info came from a pdf manual I found at oldwwmachines.com or.net. Is any
> of it wrong? If you have a manual or can otherwise can help me fill in
> the blanks, I'd be grateful.
>
> Thanks,
>
> Jim
>
>
>
> Powermatic 45
> -----------------
> swing: 12" over bed; 16" over gap; 8" over tool rest
> (Some folks claimed only 10" over bed;
> The 1969 manual says 12", but it contains other
> inconsistencies, also. E.g. dwg says 17" over gap,
> and gap width is different in different places)
> bed: 60", 39" c-c, 4-7/8" gap (3-1/4" from faceplate)
> OALxWxH: 63" x 16" x 46-1/2"
> motor: 3/4 HP; 1800 RPM
> speeds:
> variable speed: (5) 330-2100
> step: 600, 1100, 1800, 3000
> headstock:
> taper: MT2
> threads: 1"-8 (?)
> bore: ?
> indexes: 60 x 6 degrees (?)
> (is that right??)
> spindle height from floor: 42-1/4"
> tailstock:
> taper: MT2
> quill travel: 4-3/8"
> approx wt: 400 lbs
>
>
>
>
> Powermatic 90
> -----------------
> (I'd like to do an item-by-item comparison with the
> '45, but couldn't find as much info on the '90. Much of
> this is guesswork.)
>
> swing: 12" over bed; 17" over gap
> bed: (?)" L, 38" c-c, (5-1/4"?) gap
> OALxWxH: 67" x 16" x 46-1/2"
> motor: 1 HP; 1800 RPM
> speeds:
> variable speed: (5) 330-2100
> step: (available?)
> headstock:
> taper: MT2
> threads: (1-1/4"-8?)
> bore: ?
> indexes: 60 x 6 (?) degrees
> spindle height from floor: (42-1/4")
> tailstock:
> taper: MT2
> quill travel: (?)
> approx wt: 600 lbs

Yep. The manual set cost me over $300. I pay $6.00 per month for hosting
and $10 per month for ISP, not to mention phone line. The scanner wasn't
free either and neither is my time. You can get some of the manuals from
PM, but many of the older machines are no longer available from them. Try
asking for a #10 mortiser or the single end tennoner. I can't afford the
space for all of them on-line, so when someone needs one, I send it. If you
don't need it, or if PM can send it, great. If you need it on Saturday
night for a Sunday auction, its available.

--
Ross
www.myoldtools.com
"PM6564" <[email protected]> wrote in message
news:[email protected]...
>
> "My Old Tools" <[email protected]> wrote in message
> news:[email protected]...
> > Both of the factory manuals are available from my website.
> >
> > --
> > Ross
> > www.myoldtools.com
>
>
> And you're charging 10.00 for a scanned copy? What a stand up guy you
are.
>
>

They will probably end up there eventually. Feel free to forward any copies
you have.

--
Ross
www.myoldtools.com
"PM6564" <[email protected]> wrote in message
news:[email protected]...
>
> "My Old Tools" <[email protected]> wrote in message
> news:[email protected]...
> > Yep. The manual set cost me over $300. I pay $6.00 per month for
hosting
> > and $10 per month for ISP, not to mention phone line. The scanner
wasn't
> > free either and neither is my time. You can get some of the manuals
from
> > PM, but many of the older machines are no longer available from them.
Try
> > asking for a #10 mortiser or the single end tennoner. I can't afford
the
> > space for all of them on-line, so when someone needs one, I send it. If
> you
> > don't need it, or if PM can send it, great. If you need it on Saturday
> > night for a Sunday auction, its available.
> >
> > --
> > Ross
> > www.myoldtools.com
>
>
> Why don't you just send the scanned copies to http://www.owwm and let them
> host it. Then you won't have this huge 16.00 outlay of cash to worry
about
> every month.
>
>