06. dimensioning

1.  WORKING DRAWINGS

2.  SURFACE CHARACTERISTICS

3.  DIMENSIONAL TOLERANCES

4.  FITS

5.  GEOMETRIC TOLERANCES

6.  DIMENSIONING

7.  THREADED FASTENING

8.  SHAFT AND PIPE JOINERS

9.  BEARINGS

10. GEARS 1: DEFINITION

11. GEARS 2: BEVEL AND HELICAL

12. BELTS AND CHAINS

13. WELDED JOINTS AND RIVETS

14. INDUSTRIAL DESIGN METHODOLOGY

15. SIMULATION

6. DIMENSIONING

DIMENSIONING

Industrial Drawing CC 2015 Ramón Rubio

RULES

These are the parts of a dimensioned line

DIMENSIONING


RULES

DIMENSIONING


RULES

Dimension text ALWAYS indicates the REAL measurement

Scale 1:2

Scale 1:1

DIMENSIONING


RULES

Every dimension should be placed in the most suitable view

DIMENSIONING


RULES

Place dimensions out of the views

DIMENSIONING


RULES

No lines should cut the dimension line

DIMENSIONING


RULES

Chamfers and fillets…use extended lines

DIMENSIONING


RULES

Never a break in breaks

DIMENSIONING


RULES

Arcs: If you know the centre of the arc, the dimension line has to begin in that centre.

DIMENSIONING


RULES

Dimension text orientation

Left side

Centred

DIMENSIONING


RULES

No dimensions with hidden lines…use cuts and sections

DIMENSIONING


RULES

Be careful with sections in profile views Diameter symbol in circles

DIMENSIONING


RULES

Take into account manufacturing processes

This line should not be dimensioned

DIMENSIONING


RULES

Holes Dimension the centre

DIMENSIONING


RULES

It’s not necessary to repeat dimensions of repeated features

DIMENSIONING


RULES

Dimensions should be aligned

DIMENSIONING


RULES

Hole simplified dimensions

1.  WORKING DRAWINGS

2.  SURFACE CHARACTERISTICS

3.  DIMENSIONAL TOLERANCES

4.  FITS

5.  GEOMETRIC TOLERANCES

6.  DIMENSIONING

7.  THREADED FASTENING

8.  SHAFT AND PIPE JOINERS

9.  BEARINGS

10. GEARS 1: DEFINITION

11. GEARS 2: BEVEL AND HELICAL

12. BELTS AND CHAINS

13. WELDED JOINTS AND RIVETS

14. INDUSTRIAL DESIGN METHODOLOGY

15. SIMULATION

6. DIMENSIONING

06. dimensioning

Engineering