I have a chance to get an old 6" jointer. It doesn't have a name on it, but it
seems to be a heavy, good quality machine. My question is about what speed the
cutterhead should be run at? The cutter head is a 3 blade, approx. 2 3/4 dia.
It is on a home made stand, with a 1/2 hp, 3400 rpm motor, with the same size
pulleys on the head and motor. I have seen pictures of other jointers, showing
a larger pulley on the motor, for more cutterhead speed.
So I need to know if I should step up the cutterhead speed, and if so to what
speed?
And what is a good belt to run on a jointer like this?
Maybe some one out there can give a guess as to what brand it is.
Here is some info:
Old 6" jointer (cast iron.) Dia. approx 2 3/4"
Infeed and outfeed tables as seen from the side, flair out, like the deck of an
aircraft carrier.
The fence is heavy cast iron, that pivots on 1 end, at the fence rail
The fence rides on a rectangular rail, similiar to an old Craftsman table saw I
had years ago.
Under each table is a crank, with a handle, to raise or lower.
It appears to have some kind of blocks, that the cutterhead rides in. I assume
there are bearings in them.
So any help or ideas of the Brand.
Thanks to all, I learn and enjoy the group
4200-4400 is about the norm.
Measure the diameter of the motor pulley, then the cutterhead pulley divide
motor by cutter and multiply times motor speed.
2 1/2 motor 2 pulley not uncommon. 2.5 / 2= 1.25 x 3450 = 4312
I've got the link belt on mine, but a well-tensioned whatever fits is going
to do about as well.
Sounds like what all jointers were until the mid-table fence and Taiwan
revolution.
"Ilv2sl" <[email protected]> wrote in message
news:[email protected]...
> I have a chance to get an old 6" jointer. It doesn't have a name on it,
but it
> seems to be a heavy, good quality machine. My question is about what speed
the
> cutterhead should be run at? The cutter head is a 3 blade, approx. 2 3/4
dia.
> It is on a home made stand, with a 1/2 hp, 3400 rpm motor, with the same
size
> pulleys on the head and motor. I have seen pictures of other jointers,
showing
> a larger pulley on the motor, for more cutterhead speed.
> So I need to know if I should step up the cutterhead speed, and if so to
what
> speed?
> And what is a good belt to run on a jointer like this?
> Maybe some one out there can give a guess as to what brand it is.
Sounds like the old "Dunlap" I inherited a few years back, I believe it's
Sears pre-Craftsman. Mine's on a wooden stand with a big pulley on the
motor and a small one on the cutter assembly, Haven't a clue as to speeds,
but it works really well.
RJ
"Ilv2sl" <[email protected]> wrote in message
news:[email protected]...
> I have a chance to get an old 6" jointer. It doesn't have a name on it,
but it
> seems to be a heavy, good quality machine. My question is about what speed
the
> cutterhead should be run at? The cutter head is a 3 blade, approx. 2 3/4
dia.
> It is on a home made stand, with a 1/2 hp, 3400 rpm motor, with the same
size
> pulleys on the head and motor. I have seen pictures of other jointers,
showing
> a larger pulley on the motor, for more cutterhead speed.
> So I need to know if I should step up the cutterhead speed, and if so to
what
> speed?
> And what is a good belt to run on a jointer like this?
> Maybe some one out there can give a guess as to what brand it is.
> Here is some info:
> Old 6" jointer (cast iron.) Dia. approx 2 3/4"
> Infeed and outfeed tables as seen from the side, flair out, like the deck
of an
> aircraft carrier.
> The fence is heavy cast iron, that pivots on 1 end, at the fence rail
> The fence rides on a rectangular rail, similiar to an old Craftsman table
saw I
> had years ago.
> Under each table is a crank, with a handle, to raise or lower.
> It appears to have some kind of blocks, that the cutterhead rides in. I
assume
> there are bearings in them.
>
> So any help or ideas of the Brand.
> Thanks to all, I learn and enjoy the group
>
>