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《robot arm經(jīng)典360度自由機(jī)械手臂搭建》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、RobotArm123456789101112131415Thetwobracketsbuiltinthisstepareusedtoattachthearmmotortotheturntablebase.?Youwillneedtoattachonebracketfirst,thenattachthearmmotor,thenattachthesecondbracket,asshownbelow.1617181920Fourwiresareneededinthisstep:1.Usetheshortestwir
2、etoconnectthetouchsensortoport1ontheNXT.2.UseoneofthelongestwirestoconnecttheclawmotortoportContheNXT.3.Useoneofthemedium-lengthwirestoconnecttheturntablemotortoportAontheNXT.4.Useoneofthemedium-lengthwirestoconnectthearmliftingmotortoportBontheNXT.RobotArmPr
3、ogrammingUsetheprogramArmControlfortheRobotArm.?ThisprogramallowsyoutocontroltherobotarmusingtheLeft,Right,andEnterbuttonsontheNXTbrickandthetouchsensorbutton.UsingTheRobotArm·PressingtheorangeEnterbuttonontheNXTbrickwilltogglethecontrolsbetween"Rotate"and"Li
4、ft"modes.·In"Rotate"mode,thegrayleftandrightarrowbuttonsontheNXTbrickwillrotatethearmleftandrightaslongasyouholdthebuttondown.·In"Lift"mode,theleftandrightbuttonswillliftthearmupanddownaslongasyouholdthebuttondown.·Pressingthetouchsensorbuttonwillmaketheclaws
5、witchbetweengrabbingandreleasing.Theturntableandliftingarmmotorsbothusegearsto"geardown"themotion(decreasespeedandincreaseforce).?Youwillnoticethatthiskeepsyoufrombeingabletoturnthemotorsbyhand.Toworkaroundthisproblem,youcanusethehandleonthesideofthearmliftin
6、gmotortoadjustthearm'sup/downpositionbyhandwhentheprogramisnotrunning.?(WhentheprogramisrunningtheNXThastheelectricbrakesonthemotorsandwillnotallowthemtobeturnedbyhand).Thisdesigndoesnotincludeasimilarleverontheturntablemotor.?Canyoufigureoutawaytoaddone?Chal
7、lenges·Practiceusingthecontrolstopickupandmoveobjects.??Hereisanexamplechallenge.?Placetheredandblueballsontirestandsindifferentlocationsbutbothatthecorrectdistancefromthearmsothattheclawwillreachit,asshownbelow.?Nowtrytousetherobotarmtoswapthepositionsofthet
8、woballs.?Whatissmallestnumberofbuttonpressesthatyouthinkthiscanbedonein?·Thinkofsomemechanicalimprovementsyoumightmaketothisdesign.?Forexample:oComeupwithawaytokeepthewiresoutoftheway.oAd
