Join Leon van den Heever for an in-depth discussion in this video Sketching the dimensions of the flywheel, part of Modeling a Motorcycle Engine with SOLIDWORKS.
- Now that we have our completed profile, and the necessary relations are captured, we will add the necessary dimensions. Let's say that the design intent is that the center circle dimension will be our driving dimension to which the other profile dimensions within the sketch will be related. To easily capture this, we will use equations for our dimensions. This will allow us to later change the circle dimension and all other dimensions will update automatically keeping the scale of the other profiles or contours in scale to the circle's size.
With the dimension tool selected, first add a dimension to the circle, and in the modified dialog that pops ups set the value to 100 millimeters, add a dimension to the top arc, and from the keyboard select the equals key which activates equation entry mode. Now we can select the circle's dimension from the graphics view, and using the asterisk key multiply by .3. Enter, and enter again. As easy as that, we can create equations for our dimensions.
Now, note that the red symbol now presents itself on our dimension and this tells us there is an equation attached to this dimension. We will use percentages to keep our equations simple, and next add a dimension to the vertical center line, and in the same way let's multiply that by .7. Next dimension, the bottom arc, again referencing the circle's dimension and multiply by 1.2.
Our first sketch is complete, and we have captured its intended design intent. Everything is looking good. Go ahead and complete the sketch from the confirmation corner which is found on the top right of our graphics view, and let's save our work. Use the icon on the menu bar, or simply Control-S on your keyboard. In the next video, we'll extrude the created profiles.
Need a better background in SOLIDWORKS before you can continue? Check out SOLIDWORKS 2014 Essential Training.
- Sketching the flywheel
- Building and cutting the flywheel shafts
- Filleting the flywheels
- Splitting the connecting rod
- Building the sprocket
- Modeling the camshaft
- Combining parts into an assembly