Lập bản vẽ thiết kế bằng AutoCAD 2000: Phần 2

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Nối tiếp phần 1, phần 2 của tài liệu "Sử dụng AutoCAD 2000 lập bản vẽ thiết kế" tiếp tục trình bày các nội dung chính sau: Các phép biến hình; Điều khiển màn hình quan sát bản vẽ; Hướng dẫn vẽ hình chiếu thẳng góc và hình chiếu trục đo; Gạch mặt cắt; Ghi văn bản vào bản vẽ; Tạo lớp để quản lý bản vẽ;... Mời các bạn cùng tham khảo để nắm nội dung chi tiết.

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Nội dung Text: Lập bản vẽ thiết kế bằng AutoCAD 2000: Phần 2

SLr dl;lng AutoCAD 2000 101 CHUONG 6 6.2. SAO CHEP (COPY) cAe PHEP BIEN HINH Lenh nay d~ sao chep cac doi nrong toi vi trf maio N6 giong lenh MOVE, chi khac la doi tU'Q'I1g van giii nguyen. cfl 6.1. Din HINH (MOVE) Nh~p lcnh: Lenh MOVE d~ di chuyen cac doi tu'Q'ng tai vi trf khac rna khong thay doi huons va J ).PI/II-doWll mCIlI/: Modify> Copy kfch thuoc cua chung. NhA I~n h ~p b 2).Too/bars: Modify> nut Copy J). Pull-down menu: Modify> Move 3 ).G() lcnh. Copy (CP) 2). Too/hars: Modify> nut Move Command: copy 3). GrJ /fllli: Move (M) Select objects: Command: move Select objects: .J Select objects:
102 Chltdng 6: Cac phep bien hinh Slr dl:lng AutoCAD 2000 103 30.00 1tPull-down menu: Modify> Mirror 2).T00/bars: Mirror> nut Mirror 3 ).Gr) lenli: Mirror Command: mirror o o Select object: If) N First point of mirror line: Second point: Delete old objcct?: la Duoi day la vi du mo cac buoc thuc hien lenh MIRROR (hinh 6.7). Hinh 6.4: Array/P Hinh 6.5: Array/SnapAng=30° - Neu ban dap dong nhac laP : sao chep mang tron, va ban than doi nrong sao co th~ khong quay hoac quay di 1 goc ban muon. 1 Command: array x"""",· -- - - I'====~ - r-====lJ - Select object: • II (- 3 I I : II I : I / Select object: .J - IL............ : """",x2 - [.._..." Restangular or Polar array(R/P): P a).Hlnh g6c bj.Chon doi nrongj W) cj.Truc d6i xirng 3-4 d).Sau Mirror Center point of array: Hinh 6.7: Mirror. Number of iterms: Angle to fiI1: * Chu v: Khi Itt.." drY/" ung bdng MIRROR cdc dong Text trt) /1(}1l nguac so vai x MIlIt g()(-. ACAD dung dllllg·hielllt¢ t//()llg MIRTEXf( 110) dl di/II khilll dong Text co dang Rotate object as they are copied?-cY>: nguac hay khong, D(;'him di/II do, ban l'(IO thief ldp hiell h¢ tluing SEIV AR: Dtroi day la vi du tao mang tron co s6 d6i urong se sao (iterms) la 5, goc dien day Screen Menu > SETTING> SEn/Ai? > MirText(O/l) toan mang la 160°, 270° va trong khi sao khong quay d6i nrongthinh 6.6b), va hinh sau co Neu d~t MirText= I thl Text se doi xirng voi hinh cil; MirText=O dong Text se quay d6i nrong(hinh 6.6c). co dang thuc nlur hinh cu. 6.5. QUAY QUA~H 1 DIEM (ROTATE) Lenh ROTATEd ling de' quay d'· tuqng_ve quan h mot rern c osa. 01 'd·"' a). Hinh goc b).Sao mang khong xoay - c).Sao rnang xoay 1t.Pull-down mCIlII: Modify> Rotate 2).Too/hars: 3 ).Ga lcnh: Modify> nut Rotate Rotate Command: rotate Current positive angle in UCS: ANGDIR=counterclockwise ANGBASE=O Select objects: Select objects: .J Specify base point: , Specify rotation angle or[Reference]: Chii y goc xoay duong la ngiroc chieu quay kim dong ho va nguoc lai. Vi du diroi day cho goc xoay la 45 d¢ (hinh 6.8). a).Trutic Array c).Sau ArrayJP=270° Hlnh 6.6: Array/P 6.4. DOl XU'NG TRl)C (MIRROR) Lenh nay giup ban t
104 Slt dlJng AutoCAD 2000 105 ChLtdng 6: Cac phep bien hinh * Neu dap dong nhac /a R: d~ cho g6c tham khao, sau d6 cho g6c moi. Xet * Neu ddp dong nhac fa R: d~ cho chieu dai tham khao, sau d6 cho cheu dai VI du sau (hinh 6.9): maio Xet VI du sau (hinh 6.11): a- Can thu nho duong tron sao cho c6 ban kfnh bang canh 13 (hinh 6.11 a): Command: rotate Command: scale Current positive angle in UCS: ANGDIR=counterclockwise ANGBASE=O Select objects: Select objects: Select objects: .J Select objects: .J Specify base point: Specify base point: Specify rotation angle or[Reference]: R Specify scale factor or[Reference]: R Specify the reference angle-co»: Specify referent length-cl >: Specify second point: Specify second point: Specify the new angle: Specify new length: Cu6i cung ta c6 ket qua sau khi xoay nhu hinh 6.9c. b- Can ph6ng to d~ cira ra vao bang doan 13 (hinh 6.11 b): ban thuc hien nrong tu. Tnroc Scale 2 2 3 a).Hlnh g6c bl.Chon d6i tUQ'ng&tam xoay 2 c).Sau Rotate Sau ScalelR Hinh 6.9: Rotate/R. 3 6.6. PHONG TO vA THU NHO DOl TUqNG (SCALE) b). a). Lenh Scale dung d~ ph6ng to hoac thu nho d6i nrong ve theo ca 2 chieu x.y voi cung mot ty l~. Neu d6i nrong da diroc ghi kich tluroc thi sau khi SCALE, kfch thtroc moi se tu dong cap nhat vao. Nha le h ~p yn . Hinh 6.11: Scale/Reference. I J.PIlII-doH'1l menu: Modify> Scale 2J.Toolbars: Modify> nut Scale 6.7. CO DAN cAc DOl TUqNG (STRETCH) ,3 J.G/) lenh: Scale Lenh Sketch d~ keo dan 1 phan cua ban ve rna van n6i voi voi hinh cii. Khi chon cac Command: scale d6i nrong d~ Sketch phai dung Crossing Window hoac Crossing Polygon. Cac d6i nrong Select objects: cham vao khung cira s6 se duoc keo dan, cac d6i nrong lot trong khung cira s6 se duoc doi Select objects: .J a di. Rieng voi dirong tron neu tam lot trong khung cira s6 thi se doi di, can tam ngoai thi Specify base point: sa duong tron se duoc keo d- Nhaap l'en h : an. Speci,fy scale factor or[Reference]: 1[Pull-down menu: Modify> Stretch De dap dong nhac nay, ban cho I s6 duong Ian han 1 d~ ph6ng to, neu cho so 2 J.T oolbars: Modify> nut Stretch duong be han 1 se thu nho doi nrong. Neu ban dap R nghia la ban dung ty I~ tham khao 3 ios lenh: Stretch sau d6 cho ty l~ maio Hinh 6.10 diroi day m6 ta qua trinh thao tac lenh SCALE: Command: stretch Select object to stretch by crossing-window or Crossing-polygon ... Select objects: ~o Hlnh goc ~o ChQn d6i tllqng scale ~ Q, sa Cho di~m ca Hinh 6.10: Scale. ~o Ket qua Specify base point or displacement: Specify second point of displacement: hlnh ve tll' di~m PI tai P2 (hlnh 6.12). Diroi day la vi du minh hoa cac biroc dung lenh stretch d~ keo phan cung tron cua
ChLtdng 6: Cae phep bien hinh Slr dyng AutoCAD 2000 107 106 2- DOihinh va quay: (hinh 6.14b) Command: align Select objects: -cchon doi tuong> )I( ~--.....I Select objects: .J Pl P2 Specify first source point: Hlnh goc Chon doi tirong keo(C) Cho diem PI va P2. Ket qua. Specify first destination point: Hlnh 6.12: Stretch. Specify second source point: Hinh 6.13 cling la vi du dung lenh Stretch doi cira tir giira toi ben trai. Specify first destination point: Specify third source point: .J Scale objects based on alignment points ?[Yes/No]: N (ker qua hlnh 6.14b) ............... 1 3-Doi hinh, quay va Scale: neu tren dong nhac cu6i cung d6, ta dap Y thi ket qua nhu tren hinh 6.14c. * Ghi chu: doi vai ve 3 chieu(3D) phai cho 3 cap diem goc va dich Align. 2: . aj.Hinh goc b).CJ1I?Jl doj hr~Jlg(C) C).Sau Stretch 6.9. HIEU CHiNH DOl TUQNG BANG K~P (GRIPS) Hlnh 6.13: Stretch. Khi nao tren man hlnh xuat hien 0 vuong nho(Pick box) tai giao diem cua 2 soi t6c(Cross hair) nrc la hie d6 dong nhac lenh dang "Command:", ban c6 the chon doi nrong 6.8. VUA Din, QUAY vA THU PHONG DOl TUQNG (ALIGN) ve d~ hieu chinh bang kep GRIP. Sau khi chon d6i urong bang each an con tro vao doi Lenh Align phoi hqp ca Move, Rotate va Scale. Nh~p l~nh: urong, cac 0 vuong nho mau xuat hien tren cac diem d~c biet cua doi tuong (hinh 6.15). 1tPull-down menu: Modify> 3D operation> Align 2).Go lenh: Align l;l·········B· •.. .» .• " ..... ~ •••••••• C6 3 tnrong hop Align: p-' .·',··...··0 . p..·..·..·.... ..·.. ·· El 1- Doi hinh: (hlnh 6.14a) -+ ,? -, ~ o Command: align 13·········0···· i] ,. Select objects:
108 ChU'dng 6: Cac phep bien hlnh Slr dl;lng AutoCAD 2000 109 4tOphons 1113 [l .... 13"'0 File$ o -+E[p a).Move b).Rotate c).Scale d).Mirror Hinh 6.19 - ROTATE mode: dap dong nhac " ** STRETCH **" ban ENTER 2 lan se co dong nhac doi voi ROTATE mode nhu sau: ** ROTATE ** Specify rotate angle or[Base point/CopylUndo!Reference/eXit]: - SCALE mode: dap dong nhac " ** STRETCH ** " ban ENTER 3 Ian xuat hien dong nhac cho SCALE nhu sau: ' . **SCALE** Specify scale factor Or[Base point/Copy!Undo!Reference/eXit]: Hinh 6.16: Hop thoai Options, trang Selection. - MIRROR mode: dap dong nhac " ** STRETCH **" ban ENTER 4 Ian se co Luu y rang d6i voi dirong tron, elip neu chon Hot Grips la tam, thl ket qua se doi dong nhac doi voi MIRROR mode nhir sau: doi nrongflvlove), xem hinh 6.18b; con chon Hot Grips la I Grip tren dirong tron hay elip ** MIRROR** thi ket qua se la thay d6i ban kfnh(Offset), xem hinh 6.18c. Specify second point or[Base point/Copy/Undo/eXit]: C ** MIRROR(Multiple)** a)Hinh gee I fL-tUl. i ,I I oHinh gee o Specify second point or[Base poinr/Copy/Undo/eXit]: d6i xirng, hinh 6.19d > * Chii y: true d6i xtrng. Sau do ban thu duoc hinh doi xirng cua doi nrong ve dii chon, nhung doi urong cu bi xoa di. Muon doi
110 Chltdng 6: Cac phep bien hlnh ** MOVE ** A' ~ .......... CHUONG 7 ,,?,.... Specify move point or[Base point/Copy!Undo/eXit]: DIEU KHIEN MAN HINH QUAN SAT BAN VE Den day ban an phfm Shift lien tuc va di chuot tai cac diem moi, doi nrong chon se duoc sao chep thanh mang cac hang va cot each deu nhau (hlnh 6.21a). 7.1. THU NHO, PHONG TO MAN HiNH (ZOOM) Lenh Zoom cho phep thu, ph6ng hinh anh tren man hinh rna van gifr nguyen kfch thiroc cua cac d6i urong tren ban ve. Nhap lenh: 1y.Pull-down menu: View> Zoom 2).Standard Too/bars: (hinh 7.1) 3). co lenh: Zoom (Z) realtim Zoom Previous a) Mang Rectangular b) Mang Polar Hinh 6.21 b). Tao mdng trim(Polar): (hinh 6.21 b) Sau khi chon Grips va Hot Grips xuat hien chtrc nang **STRETCH**, ban an Zoom Dinamic ENTER 2 Ian se hien ra chtrc nang **ROTATE**nhlI sau: Zoom Scale ** ROTATE ** Zoom Center Specify rotate angle or[Base point/Copy!Undo!Reference/eXit]: C ** ROTATE (Multiple)** Zoom in/out Specify rotate angle or[Base point/Copy!Undo/ Reference /eXit]: B Specify rotate angle or[Base point/Copy/Undo/ Reference /eXit]: 30 Hinh 7.1: Standard Toolbar/ Zoom. Den day ban an phfm Shift lien tuc va di chuot tci cac diem moi, d6i nrong chon se diroc sao chep thanh mang cac phan nr each deu nhau 30° (hlnh 6.21 b). Command: zoom Specify corner of window, enter a scalefactor( nX or nXP), or[AllICenterIDynamiclExtentsIPreviousIScaleIWindowj: y nghia cac Iva chon tren dong nhac < I> d6 nhu sau: .. === * === - Dap 1diem ( hoac W): dap dong bang each choz dinh cua cira s6 bao doi nrong can xem (hinh 7.2). aj.Chon d6i tuqng(W) 1..... bj Sau Zoom lJ§I Hinh 7.2: Zoom/w. - All : d~ thu toan bo ban ve k~ ca phan hinh ve a ngoai gioi han LIMITS da d~t ra mar. hinh mot each day duo Neu doi tirong a trong limits se diroc ph6ng to ra. - C (center): cho phep xac dinh 1 cira s6 chfr nhat chua phan hinh ve d~ hien hinh. Cira s6 nay duoc xac dinh bang tam va chieu cao cua n6(vf du tam cira s6 Ia tam dirong tron, chieu cao Ia doan QUAI, QUA 2 nhu hinh 7.3).
112 Chltdng 7: Dieu khi~n man hinh quan sat ban ve Slr dunq AutoCAD 2000 113 se nhap lira chon nay. Sau d6 ban chi viec an va di con tro d~ thu ph6ng hinh: di len la ph6ng to (hinh 7.6), di xuong la thu nho; cuoi cung an ENTER. (\,+ Hlnh 7.3: ar.Tnroc Zoom 2 bl.Sau Zoom/C Zoom/ Center 8c@ Hlnh 7.6: Realtime Zoom. - D (dynamic): a sau khi chon "D'' tren man hinh xuat hien dau "x" dung tam cira ".i'.t\;,;;.---r -Zoom in: thu nho hinh 2 bin. s6. Ban c6 th~ chon vi trf can thiet d~ xem bang each di chuyen con tro toi d6 roi an phfm x' l.:1 _... Pick hay Enter se xuat hien 1 rntli ten chi vao canh ctra s6 (hinh 7.4a). Sau d6 ban dung (~.+-'-zoom out: ph6ng to hinh 2 Ian, ban phfm di chuyen con tro d~ thay d6i cira s6 xem, roi an ENTER (hlnh7.4b). J 1 7.2. TINH TIEN MAN HiNH (PAN) L¢nh nay cho phep ban "tnrot" anh tren man hinh rna khong thay d6i d Pan 2).Sra/ldard Too/bars: (hinh 7.1) 3). G() I~'/lh: Pan (P) ~ 7.2.1. Lenh Realtime PAN: 2 Day la ch~c nang mac dinh cua lenh PAN. Khi goi lenh Pan hien ra con tro hinh ban tay(Hand cursor) nlur hinh ben: . AI- a). Hlnh 7.4: Zoom/ D . b). - E (extents): d~ hien tat cii hlnh ve ra vira khft toan bo man hinh. Tir day ban an va di chuot den vi tri ban muon xem. D~ ket tluic Realtime Pan, ,;[,\ - P (previous): hien lai hinh anh tnroc Ian Zoom gan nhat. Chirc nang nay e6 th~ ban an ESC hoac ENTER. phuc hoi lai Ian luot 10 Ian Zoom truce. 7.2.2. Cac hra chon khac cua PAN: - S (scale): chirc nang nay eho phep ta eho ty l¢ hien hlnh anh ra man hlnh. Gia trj - Point: ch~ diem goc PI, salt d6 cho diem dfch P2, man hinh sc tinh tien theo thu ph6ng: doan PIP2. + 0.5,2, 10... thu ph6ng 0.5,2, 10...1
Slr dl;lng AutoCAD 2000 115 114 Chltdng 7: Dieu khi~n man hinh quan sat ban ve "~~~~~~~iBf2':Dt:r~~~~:~:::j;Tf;;jt; Hop thoai View va di de xem toan bo ban \'c(Pan). Ban muon thu ph ongr Zoom) thi [in chuot tnii I If1n nira 3). G(J lenl«: View> Hop thoai View se hien ra mili ten tren cira s6Aerial View, roi b~\I1di chuot sc thu phong hinh toi vitrf mong muon thi an ENTER (hinh 7.10). .:.iE'J29 Named Views IOrthographic 8. Isometric Views I .:.iE'J29 Current View: Current .. ?' Name Set _Current I .tlew ... /:.~ /!o~. Dejails
116 Chtronq 7: Dieu khi~n man hinh quan sat ban ve 7.5. LENH REDRAW CHUONC8 Neu ban dat bien Blipmodeefj Blip"+"; con bien B1ipmode=OFF N thi khi nhap diem tren man hinh de lai dau thi khong de lai dau Blip tren man hinh. Lenh Redraw HUONG DAN VE HINH CHIEU THANG GOC vA sc ve lai ban ve trong khun nhIn don thai xmi dau Bli di. Nh~ lenh: HINH CHIEU TRl)C DO 1). Pull-down menu: View> Redraw 2). Go lenh: Redraw (R) 8.1. CACH VE cAc HINH CHIEU THANG GOC Tren ban ve thiet ke co the gam nhieu hinh chieu hlnh chieu dung, hinh chieu bang, : 7.6. DRAG MODE hinh chieu canh, hinh chieu tlr trai, hinh chieu tir duoi. ,.. Cac hinh chieu do phai duoc sap ACAD eho phcp keo le (Drag) mot so doi nrong ve tren man hinh dong thai hien ra , xep sao eho 'co su lien h¢ dong dung va dong ngang voi nhau. e Jam dieu do ta can sir D cac doi lU\1J1gdo bang mau white de b'.111 quan sat duoc qua trinh keo le, Ban co the dieu dung cac lenh sau: Ortho, Object snap, Ray, Xline, Point Filter, Polar Tracking, khien che do mo hay tat DRAG nhu sau: Offset ... nhu trinh bay duoi day. Command: dragmode 8.1.1. Dung Point Filter: (xem lai chuong 3, muc 3.2.1 j ON/OFF/Auto< ...>: (Cl19n ON: kco le duoc, OFF: bo che d¢ keo le, Auto: De xac dinh roa do 1 diem ta co the dua vao tO~1 cac diem da co bang cong cu IQc do Che do leo le ur dong khi can). toa do diem(P~int Filter). Khi AutoCAD yeu cau nhap diem, ta goi Point Filter bang cac each nhu sau: 7.7. BIEN VIEWRES HI~N DUONG TRON, CUNG TRON , j),C6 I'({O d('mg II/uk nluip diem: .X hoacY hoac .XY, .YZ, ... Lenh nay dung de d~t che do ZOOM nhanh va de dat che do phan giai cho duong , 2).sIIOr!Cll( menu Osnap: an phim Shift + phim phai chuot se hien ra hop thoai tron. Duong tron duoc vc boi da giac dcu(Polygon), bien VIEWRES dinh so canh cua Shortcut menu Osnap chua Point Filter. Polygon, tang so canh cang Ion thl duong tron cang min. AutoCAD 2000 cho phep so canh * Vi du: cho hinh chieu bang cua vat the, hay vc hinh chieu dung bang each Slr la tir 1..,.20.000. dung Point Filter (hinh 8.1). Command: viewrcs a- Ve dirong 1234: Do you want fast Zoom? [Yes/Noj]-cY>: .J Command: Line Enter circle zoom percent (1-2000) : 1000 Specify first point: .X ~ of INT x cua diem A> Vi du 6 hinh 7.11a, so canh da giac Ia 20, hinh 7.11b chon so canh la 1000, ta thay r6 Needf YZ): do min cua 2 duong tron rat khac nhau . Specify next point or[undo]: .X.J of END Need(YZ): Specify next point or[undo]: @0,20 Specify next point or[undo]: .X ~ of CEN Need(YZ): Specify next point orr undo]: .J 5 6 Hlnh chiell dung 4 / 3 ~--------------------------~ 1 a).So c
118 ChLtdng8 :HLtdngd~n ve hinh chleu th~ng goc va hinh chieu true do SLrdl;lng AutoCAD 119 b- Vc duong 1567: 8.1.3. Dung OFFSET Command: Line Ta cung co the dung lenh Offset tao cacearth song song tren hinh chieu can vc. Specify first point: END * Vi du: cho 2 hinh chieu cua V~ltthe hinh 8.4, hayvc hinh chieu canh. Needt Yz.): Specify next point orjundo]: @O,70 A,.......-,:::-----,C Need(YZ): .X.J of INT Er--G Specify next point or[undo]: @O,20 Specify next point or[undo]: .X.J of CEN -cchon toa dQ x cua giao diem C> Need(YZ): em F H Specify first point: PER B'-------'D Specify next point or[undo]: .J c- Vc dO~lI1 khuat 89: 6 Command: Line Specify first point: .X.J of INT Need(YZ): Specify next point or[undo]: Specify next point or[undo]: .J 4 Dung lenh Trim chat 2 dau thira dm.1I189. Cuoi cung dung lenh Change doi doan Hlnh 8.4 89 thanh duong drrulIidden), ta co ket qua nhu hinh 8.1. a- Ve canh AB: Command: Offset 8.1.2. Dung RAY hoac XLINE Specify offset distance or [Though]: T Dc vc cac hinh chieu tv I hinh chieu da co ta ciing co the Slr dung lenh Ray hoac Select object to offset or-cexit>: on Xlinc de (,.10 cac duong dong dung, dong ngang. Cac duong dong nay sau khi Trim se cho Specify through point: b ta cac duong bao cua hinh chieu can vc. b- Ve canh CD: * Vi du: cho hinh chieu dung va hlnh chieu ang cua V(lt the hinh 8.2, suodung b Command: Offset lenh Ray de vc hinh chieu canh, Specify offset distance or[Though]: QUA em a- Vc dirong thang t nghieng 45° so vci true x, goi la gi« (hinh 8.2). Specify second point: QUA b- Vc cac dirong thang cau true narn ngang(Rays) di qua cac diem can thi cua 2 et Select object to offset or-cexit>: hinh chicu da chothinh 8.2). Tv cac giao diem cua cac Rays Bam ngang tv hinh Specify point on side to offset: b chicu bang voi gia t, ta ve cac Rays thang dung. c- Ve cac doan EF, GH: c- Dung lenh Trim de chat cac doan thira cua cac Rays do. Cu6i cung ta hieu chinh Command: Offset va thay d6i sc co ket qua nhu hinh 8.3. Specify offset distance or[Though]: INT em Specify second point: PER o o Select object to offset or-cexit>: Specify point on side to offset: Select object to offset or-cexit>: Specify point on side to offset: a Select object to offset or: .J l . d- Dung I¢nh Line, Arc ve them, Trim ch~t cac do~m thva va hoan chinh ban e ta v co hinh chieu c'.lnh nhu tren hlnh 8.4 . 8.1.4. Dung ket hQ'pORTHO va OSNAP Dung ket hqp Ortho va Osnap de v hinh chieu wang tl! nhu Slr dl;lng Ray, Xlinc. e 8.2. cAcH VE HINH CHIEU TRl)C DO M~lc nay ta chi str d~lI1gcac I¢nh 2D cua AutoCAD de ve hinh chieu tn,lc do cua v~t Hinh 8.2 Hinh 8.3 the. Ta lrlnh bay cach ve 2 Im hlnh chieu trl;lc do thuang dung nhat la: .li
120 Chltdng 8 :Hltdng dan ve hinh chieu th~ng g6c va hinh crueu true uo siJ dunq AutoCAD 121 1- Hinli chieu true do vuong goc deutlsometric): huong chieu vuong g6c voi 8.2.2. each ve hinh chieu true do vuong g6c deu mat phang hinh chieu, cac he so bien dang bang nhautp=q=r) (hinh 8.7) etc buoc thuc hien: 2- Hinh chieu true do xien goc(Oblique): huong chieu xien g6c so voi mat 1). Dar Snap/ON va Grid/ON va lua chon Isometric. phang hinh chi·eu. Neu 3 h so bien dang bang nhautp=q=r) ¢ goi la /IiI/II chieu 2). Dung phim t6 hop Ctrl+E chuyen con tro vao tung mat phang cir he true do t d true do vuong g(IC d(!I/; neu 2 trong 3 he so bien dang bang nhau goi la Hiuh ve vat the. Cac mat phang d6 c6 ten la: lsoplane Left, lsoplane Right, lsoplane chieu true do vuong g(IC CciII. Top (hinh 8.6). De vc hinh chieu true do trong 20, ta c6 the sir dung cac lenh Snap, Grid \'oi lua 3). Vc hinh chieu true do cua cac duon tron bang lenh Ellipse: g chon Isometric, ket hop lenh Ellipse ve hinh chieu true do cua duong tron va t6 hop phim Command: PELLIPSE Ctrl+E. Enter new value for PELLIPSE: 1 8.2.1. Dat Snap va Grid: (xern chuong 3, muc 3.4.3) Command: Ellipse TruCK khi \'c hinh chieu true do tr ng 2 chieu. ta can dat Ill'oi(Snap) V~I hicn o Specify axis endpoint of ellipse or[Are/Center/lsometric]: I (Isom etric) , luoi(Grid) voi IU'1chon Isometric bang cac each nlur sau: Specify center of isocircle: l iPull-down menu: Tool> Drafting Settings> Hop thoai Drafting Settings Specify radius of isocircle or[Diameter]: (hinh .8.5) *CI111_y: I i.Khi \'e-clip tren cdc mdt kluu: 11170/1 lui» dung phim td IWp Ctrl+E ell 2).Status bar: an phim phai chuot vao nut Snap/Grid> Hop thoai Drafting CIIllY/1I COil trt) \'do mat CclII ve": Settings :2 ).B1.111 /7111()ll t(l dam clip tht truac klii I'e clip I/(/y d~'jt bieJ} PELLIPSE= 1. 3).Go lenh: Snap \I) 2000 _(A4-2000J 1!Ir.J Ef !;dlt ~iew Insert FQIIMI lools .Qraw Dimension Modify 't,!indow !:!elp Command: Snap Specify snap spacing or[ON/OFF/Aspec!Rotate/Style(Type]< ... >: S (Style) Enter snap grid style[Standard/lsometric ]: I -cchon kieu Isometric> Specify vertical spacing< ... >: 10 i Command: Grid Specify grid spacingsX> or[ON/OFF/Snap] < . . >: S ..:;.ltDrafting Settings 613 I Snap and Grid Polar Tracking I Object Snap I P ~nap On [F9} P §rid On [F7} Snap" . X Sna.!;! spacing: Snap Y spaQing: Bngle: o base: r. Gjid snap .J r R§ctangular snap r. ~.~~m.e..~.~~.·.·~~.a..e ill i]il ····[2?5,T2({H:'~~:~:.::~":'~:;:',,~'::~"::jlsNAPI·GRiD··Q.~jHQ;eQ~·QiNAeJ·QiB6~~!iwijiMODE1.· r P.Qlar nap s j~Slalll'jI~AuIOCAO 2000· IM- .. '~Ch13 . Micro,olrWord I. '[i!:a~"Gl£"5;4'2p;:t H'inh 8.6: Cae m~t Isoplane Left, Isoplalle Right, Isoplanc Top. * Vidl,l: V hlnh chieu tryc do vu c ong g6e deu eLla v~t tht(hlnh 8.7c). 1).D~t Snap, Grid: Opjions... OK II Cancel !:!elp Tren Status bar ta an phfm phai chu vao nut Snap/Grid (>i thl h(>p tho li Drafting Z Settings sc xual hi¢n(hinh8.5). B
122 Chu'dng 8 :Hu'ang d~n ve hinh ehieu th~ng goe va hinh chieu true do Slr dl}ng AutoCAD 123 2).Dung lenh Line ve de (hinh 8.7a) Specify base point or displacement, or[Multiple]: CEN of 3).Dung phim t6 hop Ctrt-E chuyen can tro vao mat Isoplane Top va lenh Ellipse Specify second point or displacement or-cuse first point as displacement>: @42: .J 5).L~nh Ellipse ve mieng 10 tru dung $36. Sau do dung Ctr'l+E chuyen can tro sang 3).Dung cac lenh hieu chinh, to darn va ghi kich thiroc ta co ket qua a hlnh 8.9c. mat lsoplane Right de ve mieng 10 $22 tren thanh trai, 6).Dung lenh Chamfer vat rnep l5x 15. Cuoi cung hieu chinh va to darn ta se co ket qua hinh 8.7c. .. a). b). c). Hinh 8.9: Ve hinh chieu true do xien dung can. a). b). c). Hinh 8.7 === * === 8.2.3. Ve hmh chieu true do xien g6c(ObJique) Hinh chieu true do xien goc co mot s6 loai : • Hinh chieu true do xien dirng can: dirong tron co hinh chieu true do tren (YZ) van la dirong tron, cac he s6 bien dang la 1/2: 1:1(hinh 8.8a). • Hinh chieu true do xien bang deu: dirong tron co hinh chieu true do tren (XY) van la dirong tron, cac he s6 bien dang la 1:1:I(hinh 8.8b). • Hinh chieu true do xien dung deu: duong tron co hinh chieu true do tren (XZ) van IAduong tron, cac he s6 bien dang la I: 1:1(hinh 8.8c). . z o o z z _L_.J--__ --=-y x ____ ~_.l 45> 4Y x x y y 1/2:1:1 1 :1:1 1 :1:1 a).HCTD xien dung can b).HCTD xien bang deu c).HCTD xien dung deu Hinh 8.8 * Vi du: ve hinh chieu true do xien dung can cua vat the nhu hinh 8.9c. 1).Ve mat tnroc cua v~t the (hinh 8.9a). 2).Dung lenh Copy de tao mat sau, lenh Line n6i cac dinh nrong irng cua mat truce voi mat sau (hinh 8.9b): '. Command: Copy Select objects: Select objects: .J
sil d\lng AutoCAD 2000 125 CHUONG9 .d Boundary Hatch GA.CH M~T CAT Quick Advanced I:.; ;,';: Cac ban ve thiet ke cua chi tiet may thuong bao gom cac mat cat tren cac hinh cu bi dien. AutoCAD sir dung enh HATCH hoac BHA TCH de vc ky hieu v~lt lieu tren mat car, l hoac to trang trf tren b mat vat th0. Mien to thuong Iii mi n kin. Cac mau gach S ~ e 9C (Patterns) duoc clura trong file acad.pat Lenh BHATCH (Boundary Hatch) dung cac h¢p . thoai de ban lua chon mau gach kieu gach va mien gach , . r;Objecltype .. '~':'__-:":"'""--"-'~'---"-"":'~;"-'~;'---;;j 9.1. TRINH Tl)'THl)'C HI~N GACH 1VI~TCAT Khi thuc hien gach mat cat, cluing ta phai xac dinh ba van de sau : 1 I r)ohd!ne 3J r Re!ain boundaries I 1. Chon kieu g'.lch(Stype): Normal, Outer, Ignore (hinh 9.1) [' Boundary set __ ' ..' : ,' ! Q:J. I Ic~rrent viewport il•. N.&w ~.. ~••:., •.••.••~ ••.•••_ ••_ •..• _._••••••~.••_•...•~.,.;.,;.,._,.• . .~ ••,,~: .•. .. I •••.••••_ ...... ...... ,... __ ._,., ••• ,•••,••~,~ ••"' ....J " ... ilslend detection method ~-··,c.,..·--·'··':7···--···;·+-·'! ! ..... I • ·• ·.i-C00~~$ition:-~· ••. L.: ..,1 .· ; 1 ·a·-Flood:· ~:. ,,' i 1 - ! i' (0" 8ssociatiY~ I Honassodalive I r: Normal Out er Ignor e Hinh 9.1: Kieu gach mat cat V(lt lieu. 2. Chon mau g'.lch(Pattern): Predefined: theo mau co san trong tep acad.Pnl' (hinh 9.3) Custom: thea mau diroc tao rieng chua trong ep co duoi .PA T dar trong t Cac lira chon khac: rhu muc SUPPORT cua AutoCAD - Object type: neu ban chon 0 User-defined: chon thea mau dan gian gom cac duong thang nghieng deu , Retain boundaries, sc . khi gach mat cat thi ta chi cho khoang each giU"a cac dU0ng(Spacillg) V~I cho goc d6i urong diroc giu lai se la Region ho Hatch> Hop thoai Boundary Hatch 3}.Toolhar: + Ray casting: do tim drrong Draw> nut Hatch> Hop thoai Boundary Hatch bien tir diem ta chon thea chi u ngiroc chieu e , Tren h(lp thoi;li Boundary Hatch c6 2 trang Quick va Advanced. kim dong ho. Neu 'diem chon 6 trong dirong bien do th~y ~~l d.U0~g bie~ duoc chon; n~~, diem chon 6 ngoai dirong bien do thay thl hien thong bao Point IS outside of bOlll1daJ y 1. Bu6c 1: chon ki{;u gach (STYLE) b~n can Pick point ii;li. Tren h(lp tho
126 ChLfdng 9: Gach m~t cat Slt dl:lng AutoCAD 2000 127 ......Boundary Hatch DEl Ban an con tro vao 1 mau va an 0K. Khi do hop thoai Hatch Pattern Palette dong lai, B~~ cho goc nghieng vao 6 Angle, va eho khoang each giiia cac dirong gach vao 6 Scale. iJ' * Chu y: nell ban dd d(it dan vi la milimetimm) thi cdn tang ty I¢ Scale =20. 22 ... f~~ter~:J ANSl31 ::Jd· 3. BlIoc3: chon mien gach ~'wll\~W'"m~"'''''''' Co hai each chon mien gach: Pick point, Select Objects ( hai nut nay narn 0 ben ·f.:C.H1i?r6i2.~!\le:J'
128 Chltdng 9: G~ch m~t cat sit dl;lng AutoCAD 2000 129 Preyiew Hinh 9.6 Hlnh 9.7 5. Vi du gach mat cat vat lieu a) Truce Hatch. b) Sau Hatch. * Vi du 1: cho hinh 9.8a, hay gach cac mat cat cua ba chi tier may 1,2,3 d~ diroc Hinh 9.9 ker qua nhir hlnh 9.8b. 9.3. LENH HATCH G~ch mat cat bang lenh Hatch thi AutoCAD dira ra cac dong nhac lenh. Thirc ~i¢n lenh Ha'tch thi mat cat se khong lien ket voi duong bien(Nonassociative) va khong the do tim (Ray casting ~etllOd) voi Pick point d~ xac ~inh d~oog bien: _ , * Vi du J: sir dung lenh Hatch ve mat cat vat lieu cho hlnh ve sau (hinh 9.10). a). b). Hinh 9.8 + Bmrc 1: chon kieu gach la Normal a) Tnroc Hatch. b) Sau Hatch. Hinh 9.10 Command: Bhatch (hoac Toolbars Draw, hoac Pull-down menu) Command: Hatch _ Hop thoai Boundary Hatch hien ra, ta chon trang Advanced (hinh 9.2), sau do chon Style la Normal. ..> Enter a pattern name or[?/Solid!User defined]< ... >: ANSI31 (ten mau gach) Specify a scale for the pattern: 24 (t~ l¢ g~~~) , + Buoc 2: chon mau g~ch(P([ttern) la ANS131 M gach mat cat cho chi tiet 1,2; I chon mau ANSI37 d~ gach mat cat cho chi tier 3. Specify an angle for the pattem-Odu'>: .0 (goc nghieng duong gach) Select objects to define hatch boundary orxdirect hatch>: Tren hop thoai Boundary Hatch, ta cJ19n trang Quick (hinh 9.3), sau do chon mau gach la ANSI31, Allgle=O, 5cale=30 d6 gach mat cat chi tiet 1. Select objects: ...... + Buck 3: chon mien gach Tren hop thoai Boundary Hatch, ta chon nut Pick point va chi ra cac diem 6 ben * Chti thich: lenh Hatch co them lila chon Direct Hatch. Thay vi chon cac d6i tuong lam bien, Direct Hatch cho phep ta cho cac diem xac dinh dtrong bien kin la dirong trong mien can gach cua chi tier I (xem hinh 9.8a). Sau khi an ENTER, hien lai hop thoai Boundary Hatch, an chuot vao nut Preview xem thir, neu dong y ban an OK. Plinetvi: dirong bien sau do gach). ? A_ , Tuong tv cac buoc nhir tren, ban gach mat cat cho chi tiet 2,3. Ket qua la hinh 9.8b * Vi du 4: sir dung lila chon Direct Hatch cua lenh Hatch de ve bac thang va gach mat cat (hinh 9.11). . - Command: Hatch * Vi du 2: cho hinh 9.9a, hay gach trang trf be mat cho mai ngoi va nrong nha M Enter a pattern name or[?ISolid!User-defined]< ... >: AR-CONC (ten mau gach) duoc ket qua nhu hinh 9.9b. + Buoc 1: chon kieu gach la Normal nhu 6 vi du 1. Specify a scale for the pattern< >: 2 (ty I? g~Ch!A , Specify an angle for the pattern< >: 0 (go~ nghieng dirong gach) + Burrc 2: wang tv nhir vf du 1, chon rnau gach la AR-RSHKE (ngoi) va AR-B816 (gach), cho Allgle=O va 5C(lI('=22. Select objects to defined hatch boundary or-cdirect hatch>. + Biroc 3: c119nbien gach urong tu vi du 1. Ket qua gach cho nhu hinh 9.9b. Select objects: .J (enter d~ chuyen sang che d¢ Direct Hatch)
130 Chlldng . . 9: Gach mat c~t Slt dlJng AutoCAD 2000 131 120 * Ghi chit: mdu gach HBETON Utren va cdc mdu khac theo tieu chudn Vi¢t Namikhong co trong AutoCAD) duoc tao ra va cai d{itbOitac gid. Ne'u ban cdn hay lien ,--- PI P2 h¢ vOi tac gid Nguyen Van Hie'n(fJT: 8693418NR). . 9.4. HIEU CHiNH MAT CAT (HATCHEDIT) . P7 .;.: •. ' P3 9.4.1. Hieu chinh bang lenh Hatchedit :':1" .~ .. . M;)t cat dii duqc g~ch, dung l~nh Hatchedit co th~ hi~u chinh duqc. G9i l¢nh: ,,: '~ ': . ..~. 1).Gol¢nh: Hatchedit o o ... " '4. , 2).Pull-down menu: Modify> Hatch ... > H(>ptho
132 ChLtdng 9: G~ch mat cat . ( CHUONG 10 GHI KICH THUOC 10.1.cAc THANH PHAN CVA KicH THlfOC Mot kich thuoc thtrong bao gam ba thanh phan sau day: 1- Duong dong(Extension line): la cac dirong d6ng tir cac diem goc cua hinh ve • ByL~yer o ra. Thong thirong dirong d6ng ke vuong g6e voi doan can ghi kich thiroc (hlnh 1O.1a), Linetype --ByLayer Nhung e6 th~ dung lenh Dimedit d~ hieu chinh dirong d6ng xien di 1 g6e(hinh 10.1 b), Linetype scale 1.00 Plotstyle --ByLayer Dim~on.Jine /imension text 46 I 94 ~xtention line ! i----, l Predefined Pattern name BRICK 82 90dO' 22.00 0.00 ~ II AR·BRELM ~ AR·BRSTD AR·CONC a). Hlnh 10.1 b). 2- Dtrcng kfch thuO'c(Dimension line): dirong kich thuoc la duong diroc gioi han m ill fi AR·PARQ1 AR·RROOF ~ AR-RSHKE boi 2 mili ten 6' 2 dau d~ chi vao 2 dirong d6ng(hinh 10.1); cling e6 twang hop chi e6 1 mili tenihlnh 1O.2a). Duong kich thiroc do g6e la eung tron e6 tam 6' dinh g6e(hinh 1O.2b), 3- Chfr so kich thuO'c(Dimension text): chu s6 kich thuoc th~ hien d¢ 100 cua vat th~. N6 khong phu thuoc vao ty I~ ve, Tren ban ve thiet ke quy dinh dung don vi do do dai Hlnh 9.13 la milimetimm) va khong diroc ghi vao ban ve. C6 th~ ghi dung sai(Tolerance) sau chft s6 kich tlurocthinh 10.2e). 1il24.., I-:~-I 0,021-1 t----i === * === '1 j a). b). c). Hinh 10.2 ",? '" "...." A"" , 10.2.T~O KIEU GHI KICH THlfOC VA CAC BIEN KICH THlfOC Truce khi ghi kich thiroc ta can t
Slt dyng AutoCAD 2000 135 134 Chltdng 10: Ghi kich thltoc JNew Dimension Style. Dim-MEeHl DEi 10.2.1. Trinh tu tao kieu ghi kich thuoc moo li!t;:~1I~[il'~~::\;1 pt~4~1 ~~tJ~lto&ii~1 l).Mo Hop thoai Dimension Style Manager l t.Pull-down menu: rO.~L~',"+'f:7~''';t·-, . ·1""'-_---""'1·..· . 31"": 1:-""'--""'-""'-""' ........ 41"" .l:~~\·':} />1- ByBlock SOfi .. +Dimensionc-Style> Hop thoai Dimension Style Manager(hlnh 10.3) +Format> Dimension Style> Hop thoai Dimension Style Manager ..:~~~: 1- ...cCk...;....;..._i01:J~..... ByBIO.• ~ + c..... ······IO· .........• ~ ..... ( ········~ \·.... .. , E~t"'!ldbe)'Ond tickS; ~..:.J ~ 2). Toolbar: nut Dimension Style: ~~l > Hop thoai Dimension Style Manager , Bptirle ;paci1g: Ie 3).Go lenh: DimStyle > Hop thoai Dimension Style Manager " ?~~.~$; r~~~},£Fo~~* ~/. ._ '\/ , "''' '''''''''~- .... '"'1 r~!QWbead~····;··::::·:::: :;;:.:::::::::::::::=::::::i;": .. ..:::- -:·'.. ;:: ~ -: - ..;$Dimension Style Manager 6EI ! CoIOI: ,_ ByBlock H t~:.. •....'..C_lo_sed_f'_Ued fi1 .... __;:il:;-.::. >,'~' ': : l~~~ I .. 05~ mm B ,.~, . ,... __ __..---.;-..,B fi1_.C_lo_sed_iI_ued ;r~~.3'~I1: i::&r. .~ CurrentDimstyle: Standard ".':: ",-,§:tyles: ~~evi~~ .••. 01: ISO-2i5 ;:;.;r;---..o...;---..o...;---..o...~~::""';;_'···········.'';:.,~;,.:t.:.~,. .~. 14-'---'-~~' : ~~~. ~ ~Mt_:~ C.:~.L~~_ i_:~ I..:"~.Mor~ _;1_5 J il' Hinh 10.5: HQp thoai New Dimension Style. a-Trang Lines and Arrows Gan cac bien cho duong kich thuoc, duong dong va mfii ten (hinh 10.5): - Dimension Lines: +Color: gan mau +Lineweight: be rong net +Extend beyond ticks: d(>dai netgach cheo thay mui ten +Baseline Spacing: khoang each cac duong kich thuoc song songnhau Close. . !:ielp +Suppress: giau di rnui ten thu 1 hay thu 2. - Extention Lines: Hop thoai Dimension Style Manager. +Extend beyond dim line: khoang each keodai them cua duong dong 2).ChQn nut NEW tren hop thoai Dimension Style Manager + Offset From Origin: khe ha giCi'aduong dong va di~m goc se hien ra hop thoai Create New Dimension Style (hinh 10.4). - Arrowheads: kieu mui ten, kfch thuoc miii ten(Arrow size). - Center maks for circles: ,",""Create New Dimension Style 6EJ +Type: danh dau tamt Mark) hay dirong tam (Line) H~wStyleNam~: IDim-MEeHl +Size: kfch thuoc cua chung.' . b- Trang Text: tirong tu gan cac bien lien. quan den chir so.kf~h thuocrhinh 10_6). §:tartWith: IISO.25 ::.pthoi;liNew Dimension Style (hlnh 10.5). - Text Alignment: Tren h'(>ptho
136 Chltdng 10: Ghi kich thircc Slt dl;lng AutoCAD 2000 137 +150 Standard: viet thea tieu chuan ISO. - Text Placement: +Bcside the Dimension ine: dat chir s6 sang ben canh duong kich thuoc. + Over the Dimension Line, with a Leather: vi trf text tren duong kfch thiroc a voi duong dan. +O\'et" the Dimension Line, Withollt a Leader: vi tri text tren duong kfch a thuoc va khong co duong dan. \\~, - Scale for Dimension Feature: ty I¢ chung cho cac bien theo mac dinh la I. \ ~/'\\, - Fine Tuning: duong dong. +Always Draw Dim Line Between Ext Line: luon vc duong kfch thuoc giira cac 7 ... : +Place Text Manually When Dimensioning: dat vi trf text bang tay khi ghi kich thuoc. d- Trang Primary Units: (hinh 10.8) Gan dan vi do do daitl.inear Dimensions). dan vi do goc(Angular Dimensions) va de) chinh xac ciing nhir tien to(Prefixes), hau t6(Suffixes). Tren hinh 10.8 ta dii chon cac bien dan vi nhu sau: - Linear Dimension: +Unlt Format: chon dan vi do do dai la Decimal theo TCVN. -Precision: gan s6' chtr s6 thap phan co nghia la 0(0 lay s6 so le sau dau phay). +Fraction Format: dinh dang cho phan so. HinhlO.6: Trang Text. +Round ofT gan quy tac Him tron s6. VI du ta cho gia tri I~l thl AutoCAD se i c- Trang Fit: dieu khien cac dirong kfch thuoc, mui ten, chir so kich thuoc so voi lam tron den s6 nguyen gan nhat. khoang each giira 2 dirong dong. Vi du tren hinh 10.7 ta dii dinh nhu sau: +Prefixl Suffix: nhap tien t6, hau to cho chir s6 kich thtrc, vi du ~40 H7/P6. - Fit Option: - Measurement Scale: + Either the text or the arrow.whichever fits best: hoac text hoac cac miii ten +Scale Factor: gan ty i~do chieu dai ella khoang each ghi kfch tlnroc, vi du: d~t sao cho tot nhat, gan ty I¢ 10 thi kfch thuoc ghi se bang 10 Ian kfch thuoc vc(gia ~lr ve 150 mm thi kich + Suppress Arrow If They Don't Fit inside Extension Lines: giau cac mili ten thuoc duoc ghi la 1500 mm); neu gan ty I¢ I thl kich thuoc ghi sc bang kfch thuoc ve. khi cluing khong narn vira (J ben trong cac dirong dong. ~New Dimen$ionSI~le:D,m-MEeHl IDI3 . Lineal :::J /'\ J.!nit fOlm
138 ChLfdng 10: Ghi kich thirdc Slr dl;lng AutoCAD 2000 139 +Apply to Layout Dimension Only: ap dung ty l~ chi eho cac kfch thuoc 6 2).Ch(;m nut NEW trim hop thoai Dimension Style Manager se hien ra hop thoai tren Layout. Create New Dimension Style (hinh 10.4). - Zero Suppression: Tren hop thoai nay ta nhap ten kieutv] du eho ban ve xay dung: Dim-ARC), chon +Leading: khong ghi so 0 khong co nghia 6 phia tnroc chir so kich thuoc. ki~u lam CO' s6 tao kieu kich thiroc moitvi du: ISO-25), va chon loai kich thuoc duoc ap +Trailing: khong ghi so 0 khong co nghia 6 phia sau dau phay thap phan. dung kieu moi nayrl.Iser for) la All dimension. - Angular Dimensions: 3).Dinh cac bien kich thuoc cho kieu mot nay -Units Format: gan don vi do goc la Degrees/Minutes/Seconds. D~ dinh cac bien kich thiroc ta chon nut Continue tren hop thoai Create New +Precision: gan so sole hay sochtr so thap phan co nghia. Dimension Style. luc nay hien ra hop thoai New Dimension Style (hinh 10.5). e- Trang Alternate Units: trang nay d~ gan cac don vi lien ket; gan dang va de) - Trang Line and Arrow: chon cac bien nhir hinh 10.10. chinh xac dan vi do chieu dai, goc va ty l~ cua don vi do lien ket, vf du gilra filch \'(7mm. - Trang Text: chon cac bien nhu hinh 10.6. 6- Trang Tolerance: cac bien dung sai (hinh 10.9) - Trang Fit: chon cac bien nhir hlnh 10.7. - Tolerance Format: - Trang Primary Units: chon cac bien nhu hinh 10.8. +Metliod: _Symmetrical-ghi tri so dung sai doi ximg, Deviation-ghi tri so dung - Trang Tolerance: chon None cua 0 Method. sai tren duoi khac nhau, Limits-gut gia rri cac sai lech gioi han tren va diroi, Basic- ve aNew Dimension Style: Dim-ARC DEi khung chu nhat quanh chit so kfch thtroc, None-khong ghi dung sai. +Preclsion: eho so chit so thap phan co nghia, tire so sole sau dau phay. Ilext ••• Ff Lines and AnQV-/s ··I • I PrmaryUnits I A_elnateUnitslloleraneesl +Upper/ Lower Value: cho gia tri dung sai tren va duoi, , . Dimension Lines ,.. ,,'.""'. .".'-:.... ~:; y +Scale for Height: ty so giira chieu eao chit so kich thuoc va dung sai. I_ Black +Vertical Position: vi tri dung sai d~t tren, giira, diroi so voi dirong kfch thuoc. Lineweight: \. ..:,.tHew Dimension Stvle. Dim-MEeHl DEi Hmh 10:10 Nhir vay ta dii tao diroc cac kieu ghi kfch thuoc, bay gio ta cac lenh d~ ghi va hieu chinh kieh tluroc. 10.2.2. Thay d6i 1 kieu ghi kich thuoc da co Hlnh 10.9: Trang Toleranee. D~ thay d6i cac bien kich thiroc tren 1 kieu kich thuae(Dimemsion Style) dii Sau khi dii dinh cac bien kfch thuoc eho kieu ghi kfch thuoc eo ten la Dim-MECH1, co, ta thl;tehi~n theo tr1nh tl;tsau: ta dua ki~u nay ra hi~n thai bang each an vao nut Set Current tren he)p tho