Blade chatter

I love H&S N075Al BaseKote. For a guy loving mild razors that are somewhat efficient, best ever tried at any price point.

I love H&S N075Al BaseKote. For a guy loving mild razors that are somewhat efficient, best ever tried st any price point.

I'll add to that that the all stainless steel one is very smooth yet efficient

Chattering is a problem of the geometry of the razor.
Unfortunately the DE blades are ultra-thin, and have their strong point only in the economy.
It does not matter the material of the razor.
I have razors of all materials with excellent blade clamping.
Also in resin (Dorco PL602) and aluminum (Focus R51 Flat).
Indeed, these're precisely the two razors in my possession that offer the least presence of this phenomenon.

By analyzing the geometry of a DE head it is easy to predict the behavior.
Chattering is inversely related to the blade's clamping capacity.
These are the factors that normally increase it:
• little arch (topcap)
• little contact surface (base)
• gap
• reveal

Obviously the greater the stress on the blade, the greater the chattering is evident.
This explains the perception preferentially in the passes against the direction of hair growth (ATG, XTGR).
But the situation is easily solved with a little technique, in normal subjects.

On the contrary, in subjects with skin problems, chattering becomes an important factor to allow the necessary comfort.
Impure skin, prone to inflammation (dermatitis), with scars, and in general any imperfection of the plane of the skin, become easy prey for a blade that is not very rigid. Therefore moving on a not perfectly smooth surface, under the stress of the hair cut, it also tends to cut the skin.

I (unfortunatelly) belong to this last category.
For me, a razor that has a high gap, but also only a modest curvature of the topcap or an inadequate width, are less and less efficient in terms of comfort.
So they require more support in choosing consumables.
Soaps that perform more in the conditioning and secondary lubrication function.
But also pre- and postshave accessory treatments.

So the right awareness of the technical aspects can improve the choice of tools.
In order to favor the right strategy to obtain the desired result.
An excellent shave, deep, durable, comfortable.

As far as I'm concerned, this has led me over the years to be very demanding.
So now I only buy products that go in that direction.
Both, hardware and software.

I was young I worked in a machine shop for a while. I do remember at times that computerized turning lathe wood chatter the part that was being turn , sort of like razor will do me sometimes against the grain. The bits on those were short and heavy duty so I guess it was probably due to the angle or possibly a wore bit it's been so long I can't remember.
 I've seen the same phenomenon with a road grader on a hard packed country dirt/ base rocked road. With the road grader it seems as rolling the blade back to a steeper angle as we would say shaving ( compared to lowering your handle with a razor) actually helped prevent that chatter and make a smooth road surface. 
    Just wasn't really addressing the harmonics and such but it was an observation of the same type of chatter. 
    I had to boss once the chattered alot lol , Joke!