brake blocks vs pins???

Started by KEN P, September 23, 2014, 08:55:49 PM

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KEN P

Just curious if there is any advantages/disadvantages to having "block" style bake system as opposed to the cylinder style brake pins and visa versa? I know alot of guys use the magged systems but am more curious about the centrifugal
Systems....can anyone point me the direction of a good post thats about braking systems and how they work? Thanks in advance guys ;D

jaypeegee

Hi

Interesting to me also. I faffed around with an attempt with light springs to limit the time the brake block touched the ring. Theory being that where the reel revolution speed exceeded the force required to expand the spring  the brakes were engaged and abruptly stopped once that relationship changed.
This was done as I was intrigued by the effect of gravity and centripetal force in the braking action.

Try reading these if you haven't already

http://en.wikipedia.org/wiki/Friction
http://en.wikipedia.org/wiki/Tribology

It applies to drag also. I return here occasionally and each time am impressed with how poor my intellect is.
However, my take is that the shape is less important than the weight or material surface type of the block
Surface area counterintuitively does not directly equate to drag or friction values, but weight I infer does as it increases the force between surfaces and thus the friction coefficient.


KEN P

Thanks for the reply  ;) alot of interesting info! I feel overwhelmed of how knowledgeable everyone on thos site is!  Kinda inspiring actually lol what kind of reel did you preform your experimenton? im assuming they where blocks instead of the pins? And was is a 2 brake system? 4? Sorry for all the questions,just wanna learn as much as i can!  ;D thanx again man!!!

jaypeegee

Hi
Reel is a SL20Sh
Experiment got derailed when I worked out how to static mag the reel without removing the brake pins
I will revisit it at some stage