Week 10 - Challenge 2- Attachment Feature Creation (Dog House)
TITLE : TO CREATE CLOSE SURFACE OF DOOR TRIM AND USE DOG HOUSE FEATURE ON SOLID MODEL
INTRODUCTION :-
IN THIS PROJECT WE WORK ON DOOR TRIM MODEL WHICH IS GIVEN BY THE INSTITUTE .AS PER THE CLASS A SURFACE WE MAKE CLASS B SURFACE AND CLASS C SURFACE. THEN WE TRY TO MAKE CLOSE SURFACE AND IT IS CONVERTED IN TO SOLID BODY. MOREOVER, WE BUILD DOG HOUSE WITH GIVEN GUIDELINES. FINALLY, WE DO DRAFT ANALYSIS OF SOLID MODEL .
OBJECTIVE :
1 AS PER THE GIVEN CLASS A SURFACE, CREATE 3D MODEL FOR PLASTIC PRODUCTION WITH USING SURFACE COMMANDS (PLASTIC THICKNESS -2.5)
2. CLOSE SURFACE MODEL MUST BE COVERTED IN TO SOLID MODEL
3. CREATE TOOLING AXIS FOR DOOR TRIM
4. DO DRAFT ANALYSIS OF MODEL OF DOOR TRIM AND ANGLE MUST BE MORE THAN 3 DEGREEE.
5. ADD DOG HOUSE WITH USING OF FEATURE RULES.
THEORY PORTION FOR PLASTIC
STEPS FOR MAKE PLASTIC 3D MODEL
1.INSERT CLASS A SURFACE - DESIDE TOOLING AXIS (FROM THIS AXIS WE CAN SEE ALL SHAPE ON THE SURFACE AND EASY FOR MAKING ) – USE DRAFT TOOL
2. AS PER THE CLASS A SURFACE WE TRY TO MAKE CLASS B SURFACE (USE SURFACE COMMANDS)
- offset the surface to 2.5 mm from the class a surface
- after that some surface are not offset, these surface we create again.
- for class B surface we do not use fill command .
NOTE :- FOR FILLET - UPPER SIDE FROM THE CLASS A - (THIKNESS - RADIUS = FILLET VALUE) EX.- 3 - 2.5 = 0.5
LOWER SIDE FROM CLASS A - (RADIUS + THIKNESS = FILLET VALUE ) EX;- 3 + 2.5 = 5.5
3. MAKE CLASS C SUFACE
- create extra surface for joining class A and B
- must follow minimum angle which is 3 degree .
4. SOLID BODY
- Join class A , B and C and build solid body
5. ADD PLASTIC FEATURE
- RIBS AND SCREW BOSS ARE ADD IN SOLID BODY (FOLLOW RULES OF PLASTIC FEATURE )
- DOG HOUSES ARE ADDED IN SOLID BODY
6.DO DRAFT ANALYSIS OF SOLID MODEL OF DRILL HANDLE (THE DRAFT ANGLE MUST BE MORE THAN 3 DEGREE --- WE ALSO SELECT LESS THAN 3 DEGREE BUT IT MAKE DEFFICULTY FOR PRODUCTION AND COST IS INCREASE)
CALCULATION FOR DOG HOUSE
-WALL THICKNESS - 2.5mm
-C SECTION AND B SECTION
C= 0.4 * 2.5 = 1mm
B= IT SHOULD BE 3.0 mm TO 6.0mm
- RELATION BETWEEN WIDTH TO HEIGHT
W:H = 2:1 OR 3:1
MINIMUM HEIGHT OF DOG HOUSE= 6mm
MINIMUM WIDTH OF DOG HOUSE = 12 mm
IN THIS PROJJECT W= 16 mm AND H = 8 mm
W / H = 16 / 8 = 2 / 1
DRAFT ANGLE FOR DOG HOUSE
MINIMUM DRAFT ANGLE SHOULD BE 1.5 DEGREE
3D MODELS IMAGES :
1.DOOR TRIM MODEL
THIS IS THE PHOTO WHICH IS GIVEN BY THE INSTITUTE
TOOLING AXIS
DRAFT ANALYSIS OF BASE BRACKET
----CLASS A SURFACE
SOLID MODEL
DOG HOUSE 1
FROM Y AXIS FROM X AXIS
DOG HOUSE 2
FROM Y AXIS FROM X AXIS
ISOMATRIC VIEW
FRONT VIEW
SIDE VIEW
TOP VIEW
command tree
CONCLUSION
OVERALL , WE HAVE DICUSSED THAT CLASS B ARE MADE WITH USING OF CLASS a SURFACE. THEN CLASS C SURFACE IS CREATED AND DONE DRFT ANGLE AT MINIMUM 3 DEGREE. ALL SURFACE ARE ADDED TO GOTHER AND CREATE SOLID MODLE.FINALLY WE MADE DOG HOUSE AS PER THE FETURE GUIDENCE AND DID DRAFT ANGLE.