BAI T,,"P S Vi! hlnh chieu cua chi tia may dtroi dfiy. Trong huang dAn n~y sir d~ng cae I~nh CIRCLE, OFFSET, MIRROR, MOVE, TRIM, CHAMFER, Osnap '" theo cae buOc sau: 1. Mlr ban ve khOi thuy, ve 2 trl!c thiing d(mg(>170), nam ngang(>220) qua A: dung I~nh line vOi FS. 2. YO 2 duimg trim d6ng tam $30, $60 -l~nh circle ve duemg trem ~30 tam t~j diem A(giao ella 2 t"!c) - I~nh offset vo $60 tiI $30 tfim A ! I & ~~ ~ " 5'.,1 -l~nh move doi 2 duang tron$30, $60 do toi Ol(@-80,O 3. Vii phan treD ~f-J r , - Offset tr1,lc dUng sang tnii 40, offset tf'.1C ngang sang len treo 140 I! ~\~ ,\. "? - l¢nh chamfer vat goc giua 2 dl1tmg thAng do voi 2 phia vat 18. 8 - l~nh circle(lTR ve cung tiep xt1c v6i dUCmg tron ~60 va dUCmg thang dUog - l¢nh trim chiflt cung thua cua duemg trim ti~p xuc d6 - l¢nh mirror My d6i xling Uit ca phAn btn phai tr~c dUng sang btn tnii 4, Ve tlep tuyen duO! vOi 2 duimg tron $60 - l¢nh line vOi osnap(fAN 5, V~ duOng bao 16 ben trong -I~nh circle vi! dullng tron R15 c6 tAm tai A(giao 21n!e) -I~nh.copy <Ii copy R15 do len tren doan 70 - I~nh line/I1R vo 2 tieF lUyen tra~ pMi vOi 2 duang tron R IS - l~h trim ch~t coic cung thira cua duang tron ~ 15- - l¢nh move dM duemg bao trong vila viS tu A len B BAIT,,"P 9 Ve ban ve lfip nhu hinh 1. Huang dAn n~y chu yeu v6 t~o lap, kh6i, chen kh6i, g~ch rn~t cat, ghi kfch thl1ac cho ban ve; phin ve CCJ ban coi nhu da thl!c hanh. 1. T o cae lOp - rnb b~m ve khbi thuy (A4.dwg) - I~nh LAYER tao lOp "crt" ~t rn~lU blue, duemg continuous va lap "Cf2" d~t mau white, duemg continuous. 26 2 54 ~ ~ Hinh 1 130 2. V~ chi IfEI 1 va I~o kh6i -I~nh LAYER dua lap "CTI" ra hi~n thm • - Ve vit l(dung l~nh line, phfm F8 ve duemg nam ngang va thimg dUng, sau d6 du_og CaG lenh offset, trim, arc ) . -I~nh BLOCK dua hlnh ve vit I th'nh block d~tttn I. "Vit", diem co so I. A (blnb 2a). 3. Ve chi li<'1 2 - I~nb LAYER dua lap "CT2" ra hi~ thm - l~nh line ve dU(mg n~ ngang va th~ng dUng di qua diem A, sau do dung cae l~nh offset, circle, trim lJ day chua dn ve 16 ren, chua g<;lch m~t ck , 4. CMn block "Vii" vao hlnh ve chi liel 2 , - l¢nh INSERT. de ch~n block "Vit" vao hloh ve chi ti€t 2, diem chen 13. A, ty 1¢ chen=} , gOc xoay=O - dung cae l¢nh trim ch~t cae net thua, l¢nh line ve them phlin 16 ren BLOCK "Vit" a) OJi tit"t 1 b) OJi lilt 2 Hinh 2 "<0 5. G~cb m~1 dlt, gbi kich thOOc, vlEI cbit vii" ban vi _ - I~nh BHATCH (ho¥ HATCH) di ~h nt~t<,:At. ;.' -I~nb DIM ghiklch tillm;:(chuy klt,~I,d61~.I>\nc>des vill~ zoom) , -,Itnh DTEXT eli vitlehll,'iIao bOn.e'" ",' " . . " '~-' -',. ,',- - BAI T.,.P 10 Ve bOn ve I~p 3 cbi titl moiy dum day. 1. T~o dlc 16p cho ban ve - mer biin ve khiri thily -lap thd nhlit ttn lap la,HCft ", mau blue, duemg continuous -lap thtl 2 ten lap 13. "CT2", mau white, duemg continuous - lap thu 3 ten lap la "CIT', mau green, duemg continuous 2. G9i 16p "CTl" ra d~ ve chi liil Irllc 1 va ~o khOi - g9i lap "CTI" ra bi~n tboi (ltnb layer) - viS tf\lC 1 (l~nh line, offset, chamfer, trim ) 131 -lenh block tao kh6i e6 ten "TRUC\", ehQIl diem co sir 13 A . .' 3. G1)i lOp "CT2", "CT3" ra ve chi tie'! 2,3 - gQi lap "CT2" d~ viS chi tiet 2, gQi lap "CD" de viS chi tiet 3, viS duang tfl;lc nam ngang cua 16 di qua diim A (ll dfty chua viS 16 va chua g~ch m~t cat cho 2 chi tiet nay). 4. Chen kh6i "TRUCr' vao hlnh ve chi tiet 1,2 - l¢nh INSERT de chen kh6i ten "TRUCI". diem chen Ia A cua 16; . - dung cae l¢nh trim ch~t cae net thila. 5. G:,tch m~t cAt, ghi kfch thuac, viet chfi V30 baD ve - l¢nh BHATCH (ho~e HATCH) de g~eh mat cAt; . -l¢nh DIM ghi kich thu<Jc (eho y kiOt hqp bfit d6i tm;mg-osnap modes va l¢nh zoom); - l~nh DTEXT de viet chu vao ban ve. BAIT~P 11 . Ve ban ve U.p ella 4 chi tiet may (hlnh 1). Huang da.n cae builc thl,tc hi¢n nhtl sau: Hiob 1 1. Tao 3 lOp - rna ban ve khai thuy; - l¢nh layer t<.t0 cae lap c6 ten Hi "CT3,4", mall blue, ki~u duemg continuous; lap "CT2", mall white, duemg continuous; lap "crI", mall red, ducmg continuous. 2. Vi! chi tiet 3,4 va t~o khoi - l¢nh layer g,?i lap co t~n "CT3,4" ra hi~n thai; 132 " - ve nhom chi tiet 3,4 (xem each ve- dliu vit 6 qmh duOi day, hinh 2); - Mnh block tao kh6i cho nhom chi tiet 3,4, ten kh6i Ia "VIT", diem co sa Ia A. . . 30 Ve chi tiet 1,2 - g<;>i lOp "crl" de ve chi tiet I, g<;>i lOp "Cf2" ve chi tiet 2. 40 ~Dh insert de chen kh6i "Vit" V30 16 chi tiet 2, diem chen la A - dung d.c l~nh trim ch~t d.c net thua. 50 G ch m;)t cat, ghi kich thucJC, viet chi! va cat baD ve trong thu ml;lc "TEM" vOi teD "op-trt,Ic"o CACH VE DAU VIT 6 C~NH Cac kich thu6c clla dAu VIt 6 c<,mh dl1qc Hnh nhl1 sau: cho vit M34 ) d=34 mm khoang cach tit t:n,Ic thftng dUng tai dc qmh dUng dAu l1,lc lang = d/2 = 17, ban kinh cung giua qua B Iii R= 1,5. d = 51. (hlnh 2a) + 4 ill + . r I , 3 ~. ~ I , I I M a) b) Hioh 2 I. Vi! cac t~c th~ng dUng (>100), nam ngang (>80) di qua A. 2. L~nh offset dua t~c ngang qua A ten, xu6ng thea cac kich thu6c 3, 30, 60, 43; dua tr1,lc dUng qua A sang trai dO<,ln 17 va 34. 3. Ve dUCmg tron R51 di qua B, lenh circle/2P (duang tron qua 2 mut clla 1 duemg kinh) 4. Ve duang th!ng di qua giao di6m I clla dl1Cmg tron Rl5 dt duemg th:ing dUng ngoai qua D. Sau dol~nh trim ch~t phfin ~n phai di~m K cua dUCmg th!ng d6 (con l~i dO<,ln IK). 5. Vi! dUCmg tron tam E ta diem giUa doan IK, ban kinh ia EC. 6. VO do.n thAng di qua D va nghieng 30", d~ dai toy y (@20<30), . 7. L¢nh trim chi~.t dc dO<,ln thua, I¢nh change d6i kie-u net clla t~c dUng AB thaoh net center, ta co hlnh 2b. 8. L¢nh mirror My d6i xUng dc hinh vtra vi! sang phai tr1;lC dUng AB, ta co hlnh ve ho~m chinh cua vong d~m 3 va vit 4 nhu hlnh 1. BAr T~P 12 Ve ban vi! lllp cua 4 chi tiel nhu hlnh du61 da.y. Huang din co sir d1,lng cac l¢nh circle, line, copy, offset, trim, layer, block, insert, dim, hatch, dtext, osnap/CEN,lNT, sketch thea cac buac sau: 133 1. T~o cac lap - rna ban ve khbi thuy; - l¢nh layer ~o ca.c lap co t~n "CTl,2", mall blue, dl10ng continuous; lap "Cf3", mall '. white, duemg continuous; 16'p"CT4", mall red, net continuous. 2. VO cbi tiet 1,2 va t~o tMnb kMi - gQi lap "crl,2~' fa hi¢n thOi; - ve chi tiet 1 va 2; - l¢nh block ~o kh6i cho chi tiet 1,2 co ten Ia "CAN_SO", di~m co sa Iii A. 3. Ve.chi tiet 3,4 - vo 2 duimg tron $20, $40 d6ng tAm iJ 01; - l~nh copy de copy duimg tron $40 tm 02. sau do vo $68; - l¢nh line v6i osnapffAN de ve 2 tiep tuyen vm $40 va $68; - I~nb line vm osnap/CEN vo tnJc dUng (> 130), ngang (>200) qua 02; - l¢nh offset dua tI¥c ngang xu6ng 60 de co trl,lc ella 16 vit qua A. Ll;li offset dua tn,Ic 16 vit xu6ng 11 len 11 va xu6ng 27; -l¢nh offset d~a ~c dUng sang tnii 130 de co tI¥c di qua 01, sang trai cae do'!." 3,28 va sang phiii 3, 18; - l¢nh circle/TIR de ve duemg trim tiep xuc R30 vCri. 2 duemg thAng; - de ve duemg Im;m song gi6i h~ philo cat rieng philo tren chi tiet 3 c6 2 cach sau: a- l¢nh pline ve duang gAp khuc (do~n ngan) lien tii!p, sau d6 trim chJilt bOt pM.n thita ~n ngoai; b- l¢nh sketch ve duemg ttl do theo duemg di con tr6: Command: sketch Record incremend< >.: 1 <cho dt) dai buac di con tnh Sketch Pen eXit Quit Record Erase Conect B~ An phim tnii chut)t giG' va di theo duemg b~n mu6n, khi dUng l~i hay nhay phim trai chuQt Ian nITa de ng&t. Cuoi cimg go R ghi vao ban ve; - l¢nh trim chJilt cung thita va cac do~n th~ng thita. 134 4. Unh insert chen khm eliten "CAN SO" - lenh insert chen kh6i "CAN SO" vito hlnh viS ella chi tiet 3,4; diem chen Hi A; - d'rmg l¢nh trim, line df ch~t ~ac do~n thua va. ve them duemg 16 ren; - l¢nh bhatch g<:tch m~t cat. 6. L~nh save as-cat ban ve vao thu m~c "TEM" v6i. ten bim vi!: 13 "can_so.dwg" 2. H110NG DAN cAc BAI T~P VE TRONG 3D BAI T~P 13 VO vAt the d~e(Solid) nhu hinh duai dAy. Hu6ng diin nay sil dl,lng cae l~nh SOLBOX, SOLCYL, SOL- MOVE, SOLCHAM, SOLEDGE, SOLSUB, SOLUNION, ALIGN, UCS, MIRROR '" tien hanh theo cae Quae sall dfiy: I. Vi! de duO; - rna ban ve khdi thuy va dung I¢nh VPOINT/(I,-l,l) ho~e DVIEW. Command: solbox Base plane/Center/<Comer of box>: <chi 1 diim PI> Cu be/Length/<Other corner>: L Length: \00 Width: 90 Height: 30 2. Vi! Ihimh ben pha; (hlnh h\>p ehii nh~l) • l¢nh UCS /0 duo UCS tm dinb A iJ m~t Iren: Command: UCS OriginlZaxis!3 points/ ./<World>: 0 Origin point< >: <bAt dinb A phi. teen de> Command: UCSicon (hi~n bic!u tIIQI1g UCS iJ s6c ,moo) ON/OFF/All/Noorigin/ORigin/<ON>: OR" , • l¢nb solbox, cho dinb cu. box l~ A, 1.=20, W=90, H=90: Command: solbox.· , Base plane/Center/<comer of box>: <bat dinh A> Cube/Length/<Other comer>: L Length: 20 Width: 90 Height: 90 - l¢nh solmove/tx80 de dCri thanh nay sang phai tit A t6"i B: Command: solmove Select objects: <chi kh6i chu nh~t wa ~e> 135 Select objects: .J ?/<Motion description>: txSO ? /<Motion description>: .J 3. Ve kh6i tr~ . -I~nh soleyl (DCS vAn" A), t~m day In! Iii A, R=30, Height=40: Command: soleyl Base plane/Elliptical/<Center point>: 0,0,0 (UeS vAn" A) Diameter/<Radius>: 30 Center of other endl<Height>: 40 -l¢nh so1cyl/B de ve t~ trong co m~t ph~ng co so (day du6i trl,l) la day dum de, R=15, Height=70: Command: . soleyl SOLCYL Base plane/Elliptical/<Center point>: B (UCS vAn iJ A) Base plane by Entity!Last/Zaxis/XY /yZaX!<3 points>: 3 Fist point on plane: <bat dinh A> 2 nd point on plane: <bat dinh B> 3 rd point on plane: <bM dinh thu 3 cUa day tren> Base plane by Entity!Last/Zaxis/XY/YZaX!<3 points>: .J Diameter/<Radius>: 15 Center of other endl<Height>: 70 - l¢nh solmove/tx40 va ty45 dCri 2 kh6i II¥ do too tam day tren: Command: solmove Select Objects: <chi vao 2 II¥> ?/<Motion description>: tx40 -?/<Motion description>: tx45 ? /<Motion description>: .J 4. Ve rAnh tr~n thiinh ben phili - l¢nh UCS/o chuyen UCS tm diem giUa Cella qmh dai wii-tren cua thanh phai: Command: ues OrigirvZaxis/3 points/. /<World>: 0 Origin point< >: MID of <bat diem giua C > -I~nh solOOx, cho dinh dAn Iii (0,-30 25), L=20, W=60, H=25: Command: solbox Base plane/Center/<Comer of box>: 0,-30,-25 Cube/Length/<Other comer>: L Length: 20 Width: 60 Height: 25 5. Ve mop vat cu. de Command: solcham Pick base surface: <chi c~nh du61 ~n trai de> Next/<OK>: N Next/<OK>: .J Pick edge of this face to be chamfered(Press ENTER when done): . <chi 2 c~nh dUng ben trai cua de> Enter distance along base surface< >: Enter distance along base surface< >: 6. Vo 2 gan lam giac - Command: Base plane/<Comer of wedgex >: Length/<Other comer>: Length: Width: Height: - Command: Select objects: select objects: <Base pOint or displacement>/Multiple: Second point of displacement: 7. Tao Ihanh solid da hqp - Command: solsub· \0 \0 solwedge <bat diem B> L -IS \0 IS copy <chi vao gAn wedge> .J <bat g6c gan B> @O,80,-90 (UCS vAn iJ C) Select objects: <chqn kh6i b! triI a thllnh chi! nh~t ~n M, kMi trilla rfulh - Command Select objects: - Command: Select objects: BAI T~P 14 chu nh~ ben tren cung> solsub- <chon kh6i b! trill. de, In! \(m, kh6i triI a In! bl!> solunion <chQn all> Vo v~t thl! ~c duai day (hlnh I). Huang dAn sir d~ng cac I¢nh SOLBOX, SOLCYL, SOLREV, SOLSUB, SOLUNION, SOL- MOVE, SOLEXT, SOLFILL, SOLSECT, SOLCUT, UCS. ALIGN. COPY theo dic bucrc sau: 1. Vo d€ duOl - rno bIIn vo khm thuy va goi I¢nh VPOINT(I,.I,I) hay I¢nh DVIEW xem anh 3D; - l¢nh solbox,' cho dinh B, L=150, W=IOO, H=30, (chua lU\1!l tron g6o). 2. V. gil b~n Irai de' - l¢nh ues chuyen h¢ ues lfmh 1 tm g6c A; - l¢nh pline ve duemg chAn de b m~t tren de; - l¢nh solext nang l~n chifu cao h=8, g6c vu6t a= 10 6 ~ 137 . . . " ' ~-& apos; -& apos;,. ,' ,- - BAI T.,.P 10 Ve bOn ve I~p 3 cbi titl moiy dum day. 1. T~o dlc 16p cho ban ve - mer biin ve khiri thily -lap thd nhlit ttn. t"!c) - I~nh offset vo $60 tiI $30 tfim A ! I & ~~ ~ " 5'.,1 -l~nh move doi 2 duang tron$30, $60 do toi Ol( @-8 0,O 3. Vii phan treD ~f-J r , - Offset. chfi V30 baD ve - l¢nh BHATCH (ho~e HATCH) de g~eh mat cAt; . -l¢nh DIM ghi kich thu<Jc (eho y kiOt hqp bfit d6i tm;mg-osnap modes va l¢nh zoom); - l~nh DTEXT de viet