Mechanical Block Drawing: SolidWorks 3D Model & Manual Drafting Complete Tutorial
Mechanical engineering drawing ko samajhne ke liye sirf 2D drawing dekhna kaafi nahi hota. Agar kisi component ki 2D engineering drawing se 3D model, aur phir us 3D model se proper manufacturing drawing/drafting banana seekh liya jaye, to mechanical design aur drafting dono ko practically samajhna bahut aasaan ho jata hai.
Is tutorial me hum ek Mechanical Block component ko example ke roop me lenge. Is component ki drawing me orthographic views, dimensions, tolerances, GD&T symbols aur isometric representation di gayi hai. Pehle hum isi component ka 3D model SolidWorks me create karenge aur uske baad SolidWorks Drafting banayenge. Iske baad isi part ko Mini Drafting ke through manually plane/elevation drawing banane ke concept se samjhenge.
Part Name: Mechanical Block
Drawing ke title block ke according component ka title BLOCK hai aur material MS (Mild Steel) diya gaya hai.
Part ki Main Details
Part Name: BLOCK
Material: MS – Mild Steel
Overall Length: 80.00 ± 0.10 mm
Overall Height: 60.00 ± 0.07 mm
Overall Depth: 70.00 ± 0.10 mm
Top Feature Height: 10.00 ± 0.20 mm
Notch Width: 9.00 mm
Notch Location: 30.00 mm reference
Upper Projection: 38.00 +0.15 / 0.00 mm
Inner Opening: 42.00 +0.10 / 0.00 mm
Slant Angle: 30.41° ± 0.50°
Slant ke lower side ka dimension: 14.00 mm
Drawing me Datum A, parallelism aur perpendicularity jaise GD&T controls bhi diye gaye hain, isliye ye drawing sirf basic modelling ke liye nahi balki engineering drawing practice ke liye bhi useful hai.
Part ko SolidWorks me 3D Model Kaise Banaye?
Sabse pehle hum drawing ko properly read karenge. Kisi bhi mechanical component ko 3D model karne se pehle ye decide karna zaroori hai ki kaunsi view se main profile banegi aur kis direction me extrusion deni hai.
Is block ke case me side/profile view se basic shape ko samajhna easy hai. Profile me rectangular base, upper notch aur right side slanted portion diya gaya hai.
Step 1: New Part Create Karein
SolidWorks open karke:
File → New → Part
Select karein.
Uske baad suitable plane select karke Sketch start karein.
Step 2: Main Profile Sketch Banayein
Sabse pehle basic outer profile draw karein.
Drawing ke according overall profile:
80 mm × 60 mm
hai.
Profile ke right side par straight vertical wall ki jagah slanted face diya gaya hai. Is slanted face ka angle:
30.41° ± 0.50°
hai.
Isliye sketch banate waqt angle dimension ko drawing ke according set karein.
Top side par ek notch bhi diya gaya hai. Is notch ki width:
9 mm
hai.
Notch ki position ko drawing me diye gaye 30 mm dimension ke according set karein.
Top feature ki height:
10.00 ± 0.20 mm
rakhein.
Sketch ko dimensions aur relations ke saath properly constrain karein. Koshish karein ki sketch Fully Defined ho.
Step 3: Main Body ko Extrude Karein
Profile complete hone ke baad:
Features → Extruded Boss/Base
select karein.
Drawing ke according required depth/extrusion dimension set karein.
Main block ki overall depth drawing me approximately:
70 mm
di gayi hai.
Extrusion complete hone ke baad hume component ka basic 3D body mil jayega.
Step 4: Inner Cut/Opening Banayein
Ab component ke front/side face par required opening ka sketch banayein.
Drawing me inner opening ki important dimension:
42.00 +0.10 / 0.00 mm
di gayi hai.
Upper aur lower projections ko drawing ke according maintain karein.
Sketch complete karne ke baad:
Features → Extruded Cut
ka use karein.
Agar cut poori depth me ja raha hai to Through All option use kiya ja sakta hai.
Is operation ke baad component ka characteristic C/U-type opening develop ho jayega.
Step 5: Upper Notch aur Remaining Features
Ab top face par diya gaya notch check karein.
Notch:
9 mm
wide hai aur uski location drawing me 30 mm reference ke saath define ki gayi hai.
Required sketch bana kar Extruded Cut karein.
Iske baad drawing ke front, top aur side views ke saath model ko compare karein.
SolidWorks Drafting Kaise Banayein?
3D model complete hone ke baad sabse important step hai 2D Engineering Drawing banana.
SolidWorks me:
File → Make Drawing from Part/Assembly
select karein.
Drawing sheet size requirement ke according select karein.
Ab model se required views create karein:
Front View
Top View
Side View
Isometric View
Engineering drawing ko readable banane ke liye views ko proper alignment me arrange karein.
Dimensions Add Karna
Drafting me wahi dimensions add karein jo manufacturing aur inspection ke liye important hain.
Is component ke major dimensions:
80.00 ± 0.10 mm
60.00 ± 0.07 mm
70.00 ± 0.10 mm
10.00 ± 0.20 mm
38.00 +0.15 / 0.00 mm
42.00 +0.10 / 0.00 mm
30.00 mm
9.00 mm
14.00 mm
aur
30.41° ± 0.50°
hain.
Drafting me dimensions ko unnecessarily repeat nahi karna chahiye. Har dimension ko aisi position par place karein jahan drawing easily read ki ja sake.
Video 1: SolidWorks 3D Model + Drafting
[VIDEO 1 – SolidWorks Mechanical Block 3D Modeling + Drafting]
Is video me aap dekh sakte hain ki isi Mechanical Block ko SolidWorks me step-by-step 3D model kaise banaya gaya hai aur uske baad uski 2D drafting kaise prepare ki gayi hai.
Video me cover hone wale topics:
SolidWorks me new part banana
Main profile sketch
80 × 60 mm profile
30.41° slant
9 mm notch
3D extrusion
Inner opening/cut
Model verification
Drawing create karna
Front/Top/Side views
Isometric view
Dimensions aur tolerances
Engineering drawing presentation
Mini Drafting Se Manual Plane/Elevation Kaise Banayein?
SolidWorks ke alawa mechanical drawing ko manually banana bhi ek important skill hai. Agar aap Mini Drafting Machine ka use karte hain to isi component ki plane/elevation drawing manually prepare ki ja sakti hai.
Manual drafting me sabse pehle drawing sheet par reference lines aur construction lines banayi jati hain.
Step 1: Reference/Drawing Line
Sabse pehle horizontal reference line draw karein.
Uske baad required vertical projection lines banayein.
Drawing ko clean aur accurate rakhne ke liye construction lines ko light pressure se draw karein.
Step 2: Main Elevation
Main elevation me component ki overall dimensions ko establish karein.
Sabse pehle:
80 mm overall length
aur
60 mm overall height
ko mark karein.
Uske baad top notch aur slanted face ko drawing ke dimensions ke according construct karein.
Step 3: Notch Construct Karein
Top side par 30 mm reference ke according notch ki position mark karein.
Notch ki width:
9 mm
rakhein.
Top feature ki height:
10 mm
rakhein.
Construction complete hone ke baad unwanted construction lines ko clean karein.
Step 4: Slanted Face
Right side par slanted portion banane ke liye angle:
30.41° ± 0.50°
use karein.
Slanted face ke lower end ko drawing me diye gaye 14 mm reference ke according locate karein.
Isse component ka correct profile develop hoga.
Step 5: Other Views Project Karein
Main elevation complete hone ke baad Mini Drafting ki help se projection lines lekar:
Top View
Side View
prepare karein.
Har view ko proper alignment me maintain karein.
Manual drafting me sabse important cheez projection accuracy hoti hai. Agar front view sahi banaya gaya hai to projection lines ki help se doosre views ko accurately develop kiya ja sakta hai.
Video 2: Mini Drafting Manual Plane/Elevation
[VIDEO 2 – Mini Drafting Machine Se Mechanical Block Manual Plane/Elevation Drawing]
Is video me isi Mechanical Block ki manual engineering drawing Mini Drafting Machine ki help se banayi ja sakti hai.
Video me cover karein:
Drawing sheet setup
Horizontal reference line
Vertical projection
Main elevation
80 mm length
60 mm height
30 mm notch position
9 mm notch
10 mm top feature
30.41° slant
14 mm dimension
Top/side view projection
Dimensioning
Tolerance indication
Final engineering drawing
GD&T Ko Samajhna Bhi Zaroori Hai
Is drawing ki ek important speciality hai ki isme GD&T (Geometric Dimensioning and Tolerancing) ka use kiya gaya hai.
Drawing me Datum A diya gaya hai.
Datum A ko reference surface ke roop me use kiya gaya hai. Iske alawa drawing me:
Parallelism – 0.05 | A
aur
Perpendicularity – 0.04 | A
jaise geometric controls diye gaye hain.
Iska purpose ye ensure karna hai ki manufactured component ki important surfaces sirf size ke according hi nahi, balki orientation aur geometric accuracy ke according bhi acceptable hon.
Mechanical designer aur draftsman ke liye GD&T ko samajhna bahut important hai, especially jab drawing manufacturing aur inspection ke purpose se banayi ja rahi ho.
Mechanical Block Drawing Se Kya Seekh Sakte Hain?
Is single component ko model aur draft karne se mechanical engineering students aur beginners ko kai important concepts samajh aate hain:
Engineering drawing reading
Orthographic projection
3D part modelling
SolidWorks sketching
Extrude aur Extruded Cut
Mechanical dimensions
Limits & tolerances
GD&T basics
Datum concept
Manual drafting
Mini Drafting Machine ka use
Manufacturing drawing preparation
Conclusion
Mechanical Block ek simple-looking component hai, lekin iski drawing me 3D modelling, orthographic views, dimensions, tolerances aur GD&T jaise important mechanical engineering concepts ko ek saath samjha ja sakta hai.
Agar aap beginner hain to pehle drawing ko dhyan se read karein, phir SolidWorks me 3D model banayein. 3D model complete hone ke baad usi model se SolidWorks Drafting create karein. Iske baad same drawing ko Mini Drafting Machine se manually banane ki practice karein.
Is tarah ek hi component se aapko CAD modelling + CAD drafting + manual engineering drawing tino ka practical experience mil sakta hai.
Part: Mechanical Block
Material: MS
Overall Size: 80 × 60 × 70 mm
Drawing Type: Mechanical Engineering / Manufacturing Drawing
Software: SolidWorks
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