CHAPTER-06 ASSEMBLY AND DETAILS DRAWING - Steps to draw assembly and part details

Oct 28, 2026

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CHAPTER-06 provides step-by-step guidance for creating assembly drawings from detail drawings and then producing part or detail drawings from an assembly drawing. It covers understanding machine purpose and functional requirements, studying external and internal features, selecting appropriate scales and view layouts, projecting orthographic views, adding symmetry axes, dimensions, notes, and part numbers. It also explains how to prepare parts lists, choose view quantity, and follow a detailed construction sequence including center lines, outlines, arcs, section cross-hatching, and dimensioning. Additional entries list specific components like plummer block, connecting rod, lathe tail-stock, gland & stuffing box, and screw jack.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages61

Reading Time2 h 34 min

AccessFree to download

CHAPTER-06 ASSEMBLY AND DETAILS DRAWING

Steps to draw assembly drawing from details drawing

Steps to draw part or details drawing from assembly drawing

Plummer block (pedastal bearing) - details

Assembly of connecting rod - details

Lathe tail-stock - assembly and details

Gland & stuffing box - assembly and details

Assembly of screw jack

CHAPTER-06 ASSEMBLY AND DETAILS DRAWING. A] STEPS TO DRAW ASSEMBLY DRAWING FROM DETAILS DRAWING:- 1. Understand the purpose, principle of operation and field of application of the given machine. This will help in understanding the functional requirements of individual parts and their location. 2. Examine thoroughly, the external and internal features of the individual parts. 3. Choose a proper scale for the assembly drawing. 4. Estimate the overall dimensions of the views of the assembly drawing and make the outline blocks for each of the required view, leaving enough space between them, for indicating dimensions and adding required notes. 5. Draw the axes of symmetry for all the views of the assembly drawing. 6. Begin with the view from the front, by drawing first, the main parts of the machine and then adding the rest ofthe parts, in the sequence of assembly. 7. Project the other required views from the view from the front complete views. 8. Mark the location and overall dimensions and add the part numbers on the drawing. 9. Prepare the parts list. B] STEPS TO DRAW PART OR DETAILS DRAWING FROM ASSEMBLY DRAWING:- 1. Understand the assembly drawing thoroughly, by referring to the parts list and the different orthographic views of the unit. 2. Study the functional aspect of the unit as a whole. This will enable to understand the arrangement of the parts. 3. Visualize the size and shape of the individual components. 4. As far as possible, choose full scale for the drawing. Small parts and complicated shapes may require the use of enlarged scales so that their presentation will have a balanced appearance. 5. Select the minimum number of views required for describing each part completely. The view from the front selected must provide maximum information of the part. 6. The under mentioned sequence may be followed for preparing different views of each part : (i) Draw the main centre lines and make outline blocks, using the overall dimensions of the views. (ii) Draw the main circles and arcs ofthe circles. (iii) Draw the main outlines and add all the internal features. (iv) Cross-hatch the sectional views. (v) Draw the dimension lines and add dimensions and notes. 7. Check the dimensions of the mating parts. 8. Prepare the parts list. 1] PLUMMER BLOCK (PEDASTAL BEARING) | 1] DETAILS OF PLUMMER BLOCK | | --- | | | | | 2] ASSEMBLY OF CONNECTING ROD | 2] DETAILS OF CONNECTING ROD
| | --- | | | | | | 3] ASSEMBLY OF LATHE TAIL-STOCK | | | --- | --- | | | | | | | | | | | | | | 3] DETAILS OF LATHE TAIL-STOCK | | --- | | | | | | 4] ASSEMBLY OF GLAND &STUFFING BOX | | --- | |
| | | 4] DETAILS OF GLAND & STUFFING BOX 5]ASSEMBLY OF SCREW JACK

FAQs

How do you draw an assembly drawing from detail drawings?

Understand the machine’s purpose and functional requirements, examine each part’s external and internal features, choose a proper scale, block out the required views, draw symmetry axes, assemble the front view first, project other views, then mark dimensions, add part numbers, and prepare the parts list.

What steps are used to create a part or details drawing from an assembly drawing?

Study the assembly drawing using the parts list and orthographic views, analyze the unit’s functional arrangement, visualize component size and shape, select full or enlarged scales when needed, choose the minimum necessary views, follow the view-preparation sequence (center lines, circles/arcs, outlines, internal features, cross-hatching, dimensions/notes), check mating part dimensions, and prepare the parts list.

What is the recommended sequence for preparing views of a single part?

Draw main center lines and outline blocks using overall dimensions, draw main circles and arcs, add main outlines and internal features, cross-hatch sectional views, then draw dimension lines and add dimensions and notes.

Oct 28, 2026

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