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Event : M ech A Boolean

W hat I s M ech A Boolean-

One l ine descr ip t ion of M ech A Boolean, as nam e suggests

M echanical Im plem entat ion o f log ic gates

M ech A Boolean is a very in tere st ing com pet i t ion of im plem ent ing log ic gates throu gh

m echanical m eans. There is no rest r ic t ion on using any k ind of m echanica l inst ru m ents except

for the condi t ion that i t should no t use any k ind of Elect r ical Energy. Even you can u se

hou seho ld th ings fo r examp le m atch-st icks, Stat ion ary I tem s, Ice cream st ick or any k ind o f

 junk.

Af ter des ign ing th e setup f i rst o f a l l you def ine d i f ferent reg ion or a l ine p rec ise ly for d i f ferent

log ic leve ls for your setup, appro aching w hich your m echanical setup w i ll acqui re the log ic

levels accor din gly.

Constraint

I t is m ust th at you use only stat ic or k ine t ic energy, as stat ed abo ve no use of elect r ical

or m agnet ic energy is a llow ed.

Rules Of The Com pe ti t ion

 

The prob lem sta tement w i ll be given to you one w eek befo re the da te o f com pet i t i on .

The prob lem s tatem ent w i l l con ta in a Boolean expression w hich you have to imp lement

w i th you r m echanica l gates For example The problem Statem ent m ay be as fo l low s

F = A(Ē+C)+CB

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The Outp ut should be accurate accord ing to t he dec larat ion o f l ine or reg ion of log ic

levels i .e. 1 or 0.

Not even the f ina l but in t erm ediate ou tpu t should a lso be accurate and prec ised

accord ing to the dec larat ion of l ine o r reg ion o f log ic leve ls.

If tw o cont estant s have the accurate resul ts wi th tw o d i f ferent m echanical me ans, th e

bet t er m odel w i ll be the o ne w i th m ore pr ecision, less com plex ity and less w eight .

The input act ion should be uniqu e for on e setup and could not b e changed af terw ard.

The input act ion w i l l consist o f on ly sing le m ot ion, no in term ediate m odi f icat ion is

a l lowed.

Fol low ing are som e e xamp le for reference and concept m aking

Examples

NO T G at e  

Trut h Table

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Inpu t Outpu t

0 1

1 0

As you can see in th e above f igure, tw o log ic lines or say regions are def ined w hen w e pu l l one

block dow n t o t he 1 log ic leve l line as input , we see that the o ther b lock touches the above

l ine i .e . log ic leve l 0 as outpu t . So t he t ru t h t ab le proves th is setup to be t he m echanical

implem entat ion of NOT Gate. 

A N D G a t e

A B Outp ut

0 0 0

0 1 0

1 0 0

1 1 1

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As you can see in f igure w e have a mechanica l setup oper ated w i th gears and 3 input / ou tp ut

regions i.e. IN and OUT. Figure just i f ies th e t r ut h t able so t he abo ve is th e m echanical

imp lement a t ion o f AND Gate .

NO TE

I t is not necessary that par t ic ipants copy t he ideas sho w n in the b log, it w i l l be preferable i f

t hey imp lem ent t he ga tes in t he i r ow n s t yle .