Shaving angles on multi blade systems

#1
Hi Everyone, I have been shaving with a double edged razor for years and recently switched to a multi blade system and recently was surprised to learn that the shaving angles on a multi blade are completely different than a traditional double edged razor which I think sits at around 30degs. Can anyone tell me what the shaving angle is on a multi blade and why it has to be so different? It's been bugging me for ages!?
Thanks
Warren
 
#2
...was surprised to learn that the shaving angles on a multi blade are completely different than a traditional double edged razor which I think sits at around 30degs.
I could not find any information on cartridge blade angles so why do you assume they are different? As far as I can tell, the blades in a cartridge are set about 30 deg. but this may be change a little as there appears to be only one bevel on the blades.
Shavers of the DE, SE and straight razor apply different blades angles although the 30 deg. blade angle would give the maximum blade exposure on the DE and SE.
Why did you switch to cartridges?
 
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