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2.1.2 - Stage 1E (Subsystem Workflow)

Objective: Detail the swerve drivebase: a custom battery mount, electronics placement, a pocketed bellypan, and competition bumpers.

Stage 1D built the structural frame. A frame is not a robot until it has electronics and bumpers. This stage is the detailing pass: skeleton to competition-ready machine.

Step 1: Open your detailing workbench

Section titled “Step 1: Open your detailing workbench”

This module uses the drivebase from Stage 1D. Use the classroom document so the electronics libraries and bumper templates are available.

  1. Open the Stage 1E workbench.
  2. Launch your project document. Add the battery mount, electronics layout, and bumper assemblies there.

Enter the Stage 1E workbench

Step 2: Complete the detailing exercises

Section titled “Step 2: Complete the detailing exercises”

Work through these sections in order. Read the theory first. Battery mounting and bumper size are rules items, not style choices.

Part 1: Overview and battery mounting. The detailing workflow, then a holder for the 12V battery.

Part 2: Electronics layout. Place the RoboRio/SystemCore, PDH, and motor controllers on the bellypan.

Part 3: Bellypan pocketing. Isogrid cuts to drop weight without losing strength.

Part 4: Bumper design and mounting. Wood backing, pool noodles, and the mounting hardware.

Step 3: Return checklist

Section titled “Step 3: Return checklist”
  • The battery cannot fall out in a tip
  • Electronics are imported from MKCAD and fastened to the bellypan
  • Pocketing saves weight, and solid material remains under every electronics mounting hole
  • Bumpers follow FRC rules: 3/4 in plywood, 2.5 in noodles, and secure mounting pins

Step 4: Submission

Section titled “Step 4: Submission”
  1. Click Submit in the Onshape Classroom.
  2. Tell a CAD mentor. They will check for interference between the electronics and the battery mount.