第一课 相机前后主体主要曲面.pptVIP

第一課 相機前後主體主要曲面 (main surfaces) 【L1_fin ; L1_s0】 1.《Open File》: camera_L1.wire. 2. Set《Construction Options》to [ General CAD Setting ] 【L1_s0-2】 Step1: Top 分模線 (Top parting line) 1. Change working layer to the comb crvs layer. 2.《Combine Curves》 【L1_s1-2】 3.《Curve Rebuild》[ Rebuild Type : Uniform Knots ; Number of Spans : 4 ] 【L1_s1-3】 Step2: Front top 前殼頂面 1. Change working layer to the front crvs layer. 2.《Swept》[ Sweep Mode: Parallel ; Fixed Curve: Path ] 【L1_s2-2】 Step4: Front facade 前殼正面 1. Use《Pick Template》to pick Front_facade_crvs and use《Toggle Template》to change state to “pickable”. 2.《Swept》 [ Sweep Mode: Parallel ; Fixed Curve: Path ] 【L1_s4-2】 Step6: Assigning surfaces to layer “Front Surfs” 1. Use《Pick Component》[ All Off and Surface On ] to pick all front surfaces.【L1_s6-1】 2. Assign selected items to the Front Surfs layer. 3. Change working layer to the Front Surfs layer. Step8: Front bottom 前殼底面 1.《New Curve (edit pts)》[ Knot Spacing: Uniform ; Curve Degree: 3 ] 2. Draw a curve with “Curve Snap” ( Ctrl+Alt ) and drag the ends of the curve to corners of “Front right” and “Front handle”. 【L1_s8-2】 3.《Set Planar》 【L1_s8-3】 Step9: Back top 後殼頂面 1. Change working layer to the back crvs layer. 2. Use《Pick Template》to pick Back_top_crvs and use《Toggle Template》 to change state to “pickable”. 3.《Untrim》the “Front top”. 4.《Birail》 [ Generation Curves: 1 ; Path 1 Continuity: Tangent ] 【L1_s9-4】 5. Restore “Front top” to trimed. Step10: Back main 後殼大面 1. Use《Pick Template》to pick Back_main_crvs and use《Toggle Template》to change state to “pickable”. 2.《Swept》[ Sweep Mode: Natural ; Fixed Curve: Path ] 【L1_s10-2】 Step12: Assigning back surfaces to layer “Back Surfs” 1. Make the Front Surfs layer invisible. 2. Use《Pick Component》[ All Off and Surface On ] to pick a