Whoa how does "righthandedness" have to do with a keyed or splined shaft and what does a machine care what it is being made to do ya lost me? CNC machines will do anything in mirror image as easy as forward "if" that was necessary.
So are you also saying these reverse rotation tillers all have left handed fasteners and gears etc because the tines go "backwards" even if they did how would that be a problem quite frankly I would bet they don't?
Steve
Not saying that at all, just that the tendencies of SOME fasteners to self tighten/loosen would be a design consideration - it is about a lot more than just turning stuff the opposite way.
End thrust on shafts too, not saying it is a MASSIVE issue, just has to be considered.
Yeah, not much CNC these days. Carving things out of solid chunks of stuff, or even rough castings, has pretty much gone by.
Just having a second set of parts around for some small percentage of the sales costs disproportionately.
Not something I'm that interested in, forward rotation works well enough for me.
It climbs over roots where necessary, I can get out and till earlier, etc.
The advantages of reverse rotation are outweighed by forward rotation anyway, so I don't see a problem with having those who WANT reverse rotation paying a premium for it.
Majority market pull, etc.
If you want to petition for this sort of thing forward/reverse PTO on the tractors would probably have more utility.