Week 10 - Challenge 1- Attachment Feature Creation (Ribs & Screw Boss)

Week 10 - Challenge 1- Attachment Feature Creation (Ribs & Screw Boss)

Aim

To Create a door handle using the given Class A surface and giving ribs and Screw boss to it

Tooling Aixs Creation

find the axis for suitable tooling axis and extract the lines which are needed to create a tooling axis using bisecting line command bisect those line and you will get the tooling axis

Class B Surface

First offset the Class A surface to 2.5mm you will get a surface whith a hole inside it Using multiple section command patch up the hole and extra polate every edges

Class C cration

Using Sweep command sweet every edges with recpective draft degree and creating extrapolate the edges and using trim command connect every sweep untill you get a single surface

Joining Class A and C Surface

For triming the B surface to get a close surface you will need to join Class A and Class C surface using join command.

Final Trin

Trim Class B surface with A and C joined surface. After trimming the surface use boundary command to check if there is any opening in the surface if it pops and error then the surface is a closed surface

Creating Final Solid

Using Closed body command in part design convert the surface into solid

Rib Creation

First extact a surface where you want to create a rib on sketch a line on the surface and extrude it along the tooling axis

using Thicken surface command thicken the extruded surface for the desired thickness (0.25*4) , You need to give draft direction for the rib. Click on draft tool and select surfaces that needs to be drafted select the exract surface as Neutral element

Using Union Trim boolean operation join the Rib with the door hanldle and give fillet of min 0.25mm

Screw boss Creation

Create a point at where do you want to create the screw boss give the required diameter for the screw boss the wall thickness is (3mm)

Extrude the sketch

Similarly create a rib for the screw bosses

Using Add and union trim command get the final output for the screw boss

Final Pictures

Draft Analysis

Tree Structure