Difference between revisions of "RoboCup Mechanical 2017"
m (→Dribbler) (Tag: Visual edit) |
m (→Chassis and Shell) (Tag: Visual edit) |
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== Competition Adjustments == | == Competition Adjustments == | ||
+ | Rollers were added to the kicker to compensate for increased boot concavity | ||
+ | |||
+ | Shims on motor mounts to attempt to level the robot | ||
+ | |||
+ | Stopped screwing in shells | ||
+ | |||
+ | Removed back standoffs |
Revision as of 20:06, 22 August 2017
This page contains technical information on the 2017 fleet.
Contents
CAD
1. Install Inventor 2017 from Autodesk
2. Download and extract the CAD files from here https://wiki.robojackets.org/File:RC_2017.zip
3. Open Inventor and locate Robot Assembly.iam RC 2017\Workspaces\Workspace\Design
Background
Drivetrain
Wheels:
Rollers lack traction
wheels come out of bearing
Bearings weren't press fit all the way.
Manufacturing rollers is time-consuming and inefficient
WJ'd center hole on the wheels should be smaller.
Motor Mounts:
Five holes on the bottom is redundant and time-consuming to manufacturing.
Screws fell out of MM to motor holes. Loctite may damage PCB at end of drivetrain.
Kicker
Axial rotation,
Kicker assembly breaks at base of boot, threads not strong enough to withstand repeated impacts
Inaccuracy due to flat head (centering on dribbler)
Internal solenoid holes are inconsistently manufactured
Steel parts inconsistently manufactured
Spring deforms, too weak spring constant
Back screw falls out
Dribbler
Gears fell off consistently
Gears are too thick
Dribbler motor rods are too short
Gears have "stiff spots" (inconsistent manufacturing)
Rollers are worst manufactured part, dowel pins not always aligned with roller
LED glue does not adequately hold LEDs
Sidestands compress the wire and push against the motor, misaligning it
Chassis and Shell
Baseplate should not be at max diameter
Back standoffs are unnecessary at best
Battery plate edges are sharp, has unnecessary thickness
Plastic screws are terrible
Shoulder screws required maintenance
*screws required maintenance
Competition Adjustments
Rollers were added to the kicker to compensate for increased boot concavity
Shims on motor mounts to attempt to level the robot
Stopped screwing in shells
Removed back standoffs