Challenge

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

SSandeep M28 Mar 2023

AIM

To Create the rib for the Drill Handle considering the design rules
To Create the Screw boss for the Drill Handle considering the design rules

THEORY

Tooling Axis

Tooling Axis is the direction in which the mold or core and cavity opens and closes. While designing a component first thing is to define the tooling axis.

Procedure

Check the connectivity of given Class A Surface i.e no gaps between the surfaces.
Analyse the component along x,y,z direction and check which is the best possible tooling direction (Here Y)
Create a point at base surface by extracting it.
Create an axis system with that point as origin.
Create an intersection of class A in xy axis
Create two lines with reference of faces which we think will create problems.
Create a bisecting line with the lines drawn, which will gives us the tooling axis.

Draft Analysis

Draft analysis is used to analyze whether the part model created in CAD is manufacturable based on the draft condition applied.

Draft is required on all parts in the direction of mold movement in order to allow parts to release or eject from the mold properly. Most part or application require minimum `0.5^o - 1^o` as draft angle, however `3^o` is widely accepted as the norm.

Procedure

First change the view to " Customize View Parameters" and select Material option.
Select Feature Draft Analysis from the tool bar.
Click on the direction, drag and drop the compass to the component such that it should coincide with the tooling axis.
Lock the draft direction and click on the component.
Green colour shows the positive draft, red as zero degree and blue as negative draft

Class A Surface: Class A surface is any of a set of freeform surfaces of high efficiency and quality. In other words, Class A surface is the aesthetic surface.