How the f*ck do I draw rectangular to round transition

How the f*ck do I draw rectangular to round transition

Step 1: use the site

STEP 2: Start the auto cad 2D Part

Find out the segments angle (8.8 x 3)

Step 1: Divide the Arc Equally
Since four lines are landing equally on the arc, the arc segments between them are:
Arc Segment = 199.5 / 3 ≈ 66.5 mm each

Step 2: Determine the Central Angles
The angles between the lines can be calculated using the formula for the central angle of a circle segment:
θ = L / R

Where:

• θ = central angle (in radians)
• L = length of the arc segment
• R = radius of the arc

Since the radius isn’t given directly, we will need to calculate the angles using the chord lengths and line lengths provided:

Radius of the arc = average of line

• 431.47 mm
• 420.4 mm
• 428.06 mm
• 451.56 mm

= L / R

= 66.5 / 432.87

= 0.1536 rad

= 0.1536 x 180 / 3.1416

= 8.8 deg

Step 3: Use divide command to divide the segments