Beaver Mills & Motors

>First off the motor will be 4 pole 1425 rpm. It gets the top speed
>from gearing up.

Lower speed on the same power, more torque. What else does 4 pole offer? If
nothing then they could just use 2 pole and only gear down. Is it a little
smoother?

> Yes the spindle motor WILL be special on the Beaver.

Foiled!

> The speed change on this model Beaver is by expanding pullies like
> the variable speed Bridgy head and as such has a longer, special
> shaft to carry the sheaves.
> I'll bet you that there is nothing wrong with the motor. They are a
> very beefy unit. You can air drop these on Bosnia and they'll still
> run OK.
> You can get a new motor to fit, it will just take a bit of working.

There is a small handle on the side of the head, is this for tensioning the
belts for when it's time to change speed and therefore belt position?

> Steer clear of this rubbish it's absolute crap. In fact it's worse
> than crap.

I own a cheapo MIG set from there, my finger goes numb trying to hold the
trigger down.

> General rule of thumb for a motor is 750 watts = 1 Hp
> That doesn't take into account efficency so if you have a one bar
> electric fire taking 750 watts, in theory that's 1 Hp but nothing's
> going round.
> Do you get the point?

Got it, we did this ages back in physics. I didn't recall the HP on the
motors was their electrical input power, not shaft mechanical power. Wait a
second, we did that in physics too. Thanks for the reminder.

> Leave the table alone. A few dings and cuts won't affect it at all.
> If it's looks you are worried about take a look in the file section
> and see if my picture on a mill tray for mounting vises is still
> there. This covers a mutitude of sins and is effective to boot.

Do you remember if you posted that in a folder?

> As regards a coolant system, the base of the Beaver is the tank.
> There should be a pump behind the rear cover but it will be 3 phase.
> Just take it out, chuck it at next doors cat and fit a single phase
> 25 quid pond pump. Ipso Facto job done, sorted.

Ahhhh! I was wondering about that because the hoses go into the base on the
pictures. I asked about machine skates earlier, I'm feeling a bombardment of
negative vibes coming my way as to do with the weight and mobility of the
mill. At some point the garage may be being rebuilt and the mill will have
to budge outside for a while. Can I build some skates for the mill and leave
it standing on them while it's in use? I'm not using it for CNC for a good
while if I get it but is it going to be wobbling around the garage when the
table's shooting back and forth? I phoned the steel place, £15 for 6m of
20mm solid steel rod, the square tubing I bought that was 3/4" with a 2mm
wall was £27. Is there a long arm that reaches inside the tube to weld
lengths of it into the shape?

> BTY it's THREE phase, no bugger knows what you are talking about here
> when you mention tri phase.

Too much Star Trek for me. : )
There are some pictures of the mill in the photos section.

Thank you,
John He.



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