Bicycle Crankset - 3D Modeling Tutorial
Hi guys, it's time for our 3th part of the bicycle 3d modeling tutorial. In this tutorial i will show you to process of 3d modeling of the crankset. The finished model will be high poly. Fell free to comment if you get stuck anywhere along this 3d modeling tutorial.

Part 1 - Bicycle Fork - 3ds Max Modeling Tutorial
Part 2 - Bicycle Frame - 3ds Max Modeling Tutorial
Part 3 - Bicycle Crankset - 3ds Max Modeling Tutorial
Part 4 - Bicycle Pedals - 3ds Max Modeling Tutorial
Part 5 - Bicycle Handlebar - 3ds Max Modeling Tutorial
Part 6 - Bicycle Seat - 3ds Max Modeling Tutorial
Part 7 - Bicycle Wheels - 3ds Max Modeling Tutorial
Part 8 - Assembling the Bicycle - 3ds Max Modeling Tutorial

Step 1: To start this 3d modeling tutorial Open or Reset 3ds Max. In the top left corner you can see the 3ds Max icon, click on it and click Reset, Save or Don't Save your work and click YES for "Do you really want to reset?". 

Step 2: So you don't get confused with the units setup change it so that we all work with the same type. From Customize, click on Units Setup, select Generic Units and International, click OK. I've use to work with the metric system, but I've found out the with generic it's easier for everyone.

Step 3: Select the Front viewport, and from Create, Geometry select Tube, Change the Height Segments to 1, the Cap Segments to 3 and the Sides to 180. Expand Keyboard Entry and leave the X,Y,Z axis to 0, but change the Inter Radius to 50, the Outer Radius to 35 and the Height to 2.5, click on Create.

Step 4: Right click on the Tube and select Convert to -> Convert to Editable Poly. We will make a high poly object.

Step 5: Expand the Front view by pressing ALT+W. Go to Modify, expand Editable Poly and select Polygon, holding down CTRL select 52 polygons starting from top middle. Select a total of 52, witch means 26 on each side(front and back). Delete them by pressing Delete on your keyboard. 

Step 6: Change the viewport to Perspective by pressing "P" or by pressing "V" and selecting it from the list. Zoom in next to the Borders, and in Border selection mode select both borders resulted from the deleting of polygons in the previous step. Now click on Bridge.

Step 7: Change the selection mode to Edge, i will still have the edges from previous step selected. Click on the square next to Chamfer, change the amount to 0.1 and click the check mark for OK.

Step 8: Now you need to zoom in in every corner of the hole. Change the selection to Vertex, and select the 2 vertices highlighted from every corner, 16 in total. Click on the square next to Weld and if you change the amount to 1.2 or higher you will see the difference of 8 vertices between Before and After.  Click OK. 

Step 9: In Edge selection mode, select one Edge from the middle and click on Ring, you will now have selected all the middle edges like you see on the left of the image. Now click on the square next to select, change or leave the Segments to 1 and click OK.

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