Gear cutting on a shaper

Saw this on Instagram
I was impressed!

 

Yet more proof shapers can still be put to good use

 

"Shapers, firing red hot chips down your collar for over 100 years"

 

More entertaining than half the drivel on the telly.

 

theres a big 26" one on a site being sold for 2000+

 

Butler?

 

yeah its a butler

 

If it wasn't a fixed cube I be on it

 

I was offered a good deal on it but salesman started to get on my wick

 

In 25 yrs Ive never had to tilt my butler and my machinery is in use.
Is it the aesthetics you don’t like?

 

Any idea how that would be set up to cut
Can't make out the tool profile in the pic

 

They dont look involute so no addendum and dedendum to contend with

 

Would they have cut one side of the v then indexed to the other side and cut then finished off the middle to square the root?
No my trade but like to understand.

Edit. Il shut up. That wouldn't work.

 

I am always ogling the gear on this website, proper machines, not a Myford in sight.


https://gdmachinery.co.uk/product/butler-21-vertcial-slotter/

 

In that first pic it looks like he is only roughing out the bottom of the cut. Must use a form tool to then get the shape ?

 

She a big lump

 

That's what I was puzzling over

 

How about a mill with a 22 meter bed ? Right up your aisle !

https://gdmachinery.co.uk/product/asquith-butler-floor-type-power-centre-hpf-x-22000mm/

 

I have a slotting machine. 8 inch. That's about as big as I can really accommodate. 22 meters. Now that's pushing it s little lol

 

there are many ways it could have been done, if it was me I would rough out as much metal as possible, levering enough for a finishing cut all around the profile. It’s also going to depend on the indexing setup as well, which will also dictate the process.