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1A: Onshape Fundamentals - Section 2

Exercise 4: Motor Mounting Plate

In this exercise, you will be making a simple motor mounting plate. It shouldn't be too difficult, since it is similar to the gussets and plates made in the previous exercises.

To get started, find the "Exercise 4: Motor Mounting" part studio in the "Section 2" folder in your copy of the template document.

Using the reference image and dimensions listed below, sketch out and extrude the motor mounting plate on the front of the provided tube:

  • Create a 2.5" circle above the tube made out of construction geometry to represent the motor.
  • The cutout at the center of the plate is 1.25", and all the other holes are 0.196" diameter (the clearance fit for #10-32, the standard bolt size for most FRC components).
  • Try to use the Circular Pattern tool to make the holes for the motor in a 2" diameter circle, with a circle cut out for the middle of the motor.
  • The top arc of the plate should be coincident with the motor outline. Dimension the motor outline from the box tube to ensure there's clearance for it.

Plate Workflow

Remember the plate workflow, adjusted now for the motor mount:

  1. Fully define construction geometry for the power transmission (motors, gears, belts, etc.) (this will be covered more in 1B).
  2. Fully define clearance holes, bearing holes, and bolt holes.
  3. Complete the plate outline using centerpoint arcs around those holes.

Complete?

Go back to your Section 2 Exercise 3 part studio and try and add a motor mount to the to somewhere on the superstructure.


Move on to the next exercise in Section 3 when you're done with the motor mounting plate.