There are quite a few things that RR does
to keep the fabrication costs of their SS De razors as low as possible .
Short cap screw : The caps are machined
from either a thick bar/plate or rod.
The longer the cap screw ,the more height
or diameter the bar/plate or rod must have,
respectively.Thus ,the more material has to be
removed ,in order for the screw to be formed.
More wasted material,more tool wear ,more time and energy spent for just few mm of
screw length more .
Since ,the highest stress on a bolt-nut of type 1 joint *(like the usual cap-handle joint of a DE razor )
is located at the threads that engage first ,
making a longer cap screw has no practical
advantage ,but can raise the retail price of the
razor considerably.Clever thinking and
designing from RR,have to admit !
Blade registration posts :The more complicated their design means more time
and energy spent for machining them.
Placing them on the base plate might save
some machining time ,as less tool changes
(thus less programming ,also) are required .
Slim head design: A thin base plate needs
less first material ( low thickness bar or plate = more baseplates can be made for the same weight of first material .Less waste of material ,also) .A thin baseplate needs a thin cap also ! Again ,less waste ,more items
made for the weight of first material .
RR approaches the whole “stainless steel DE razor” thing in a very unique manner.With clever thinking and designing have managed
to offer really high quality razors at very
attractive and affordable prices,while they
are making a profit also .
They opt for the masses.
Me thinks that this is how wet shaving is promoted from the truly professionals and passionate lovers of the art.
By giving the ability to almost everyone to
own a high quality ,finely made from 316L
ss DE razor.
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https://www.google.gr/amp/s/slideplayer....p/5728847/
Type 1 bolt-nut joint : The threads of the
screw are under tension ,while the threads
of the nut are compressed.
Regarding DE razors :
The cap screw is the bolt ,while the handle
is the nut.When fully tightened the threads of the cap screw are “pulled” by the handle ,as the rest of the cap is
forced against the top of the baseplate,
while the threads of the handle are
compressed as the top part of handle is forced against the bottom of the baseplate.In this type of joint the highest
stress is located at the very first few threads of the handle ,while at the cap screw the threads that are mostly stressed ( aka “doing most of the job “ holdind the jointed razor parts together ) ,
are to be located close to the base of the cap screw ,near the cap ).
Thus,a longer cap screw has no real advantage over a shorter one.
