Gallery, Projects and General > Neat Stuff
Cutting gears on a shaper.
NeoTech:
yeah, the only problem i see with cutting gears on a shaper is that you u need several different setups for gears.. But you should be able to produce gears that are up to the size of your rack and all the below that matches the pitch/diameter i guess. =)
i have no idea.. i dont got a shaper.. (yet) ;)
awemawson:
Is that not the motion of a 'Sunderland Gear Planer' ?
Bradley Simmonds:
On a rotational basis for a planer it would be a sunderland gear planer,
the exact type of planer that is demonstrated in that video is a
sykes gear planer.
vtsteam:
A cutter plate like that wouldn't be very stiff. The more teeth the longer the span. A lot of tool steel to get adequate stiffness in a full stationary rack compared to indexing the blank during clearance without rolling it laterally.
RichardShute:
As commented by others, as shown it is a Sunderland or Sykes gear cutter, depending on the details. Here's a real one:
But for home use, a 5 ton machine is probably a bit much so I favour this approach:
http://neme-s.org/Shaper%20Books/Michael_Moore/shaper%20gear%20cut.pdf
The article was originally in in ME in the '50's, but gear geometry hasn't changed so all you need is a single point tool of the appropriate angle depending on 14-1/2 or 20 deg gear contact angle and a 'drive drum' appropriate for the PCD. Any and alll DP's and modules taken care of automatically, just set the PCD and tooth depth as necessary. I've not made one yet, but it's on the list............ somewhere
Richard
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