SumoBot PresentationBY: CARL DALY, MICHAEL O’KEEFFE & JAMIE TUTTY

Factors to be considered

Sumo Bot

Attac

DefenceStructure

Drive

MaterialsPower

Attack

Maximum weight

Low to ground

ClampClaw Flippers

Spike

More power towards flipper

Tracks instead of wheels for more traction

Control speed of bot Play around with

idea of getting bot to move if flipped over

Aluminium not steel

Sand cast flipper

Plastic may be to light

Clean body work(prevent east disablement)

Light- Flashing lights to distract

Sound-buzzing sounds to distract

Supports to prevent Bot from being flipped

Original Ideas and Sketches

What was learned from Modelling

1. The original height of the robot could be designed to be 20mm lower, which we previously listed was to be a design feature.

2. There are approx. 6-7 main areas where weight can be saved due to unnecessary walls or floor components.

3. Flipper mechanisms have been identified. Example: no use of gears, just direct link to the flipper drive shaft from the servo.

4. It is very possible to keep our robot close to the floor, making it harder to flip or to get under.

New Revised IdeaWhat has improved:• The front flipper has a completely new

mechanism. Designed to tip, not to lift.• Guard rails along the side

PART MATERIAL JOINING PROCESSSUMO-BODY 2mm Aluminium Body walls to be joined using rivets. All

rivets to be 3mm due to weight restrictions. Some TIG welding may be required.

SUMO-BODY-LID 3mm Acrylic To be cut on laser cutter and fold corners folded on strip heater after. Will be fastened to body at two points only allowing easy access to on-board components. This will be achieved with small M4 screws.

FLIPPER ARM Cast Aluminium/ Pewter This will be manufactured using sand casting and hollowed out on the milling machine. This will be joined to the servo motor via a small bearing/bushing.

WHEELS Nylon/ Rubber These will be manufactured on the lathe and joined to the motors with small bushings or threaded bar(weight dependant to be made on CNC lathe).

WOOD HEIGHT BLOCKS Balsa Wood These blocks are to raise the motor to is required height and also act as a pivot point for one side of the flipper arm. To be attached to base with impact glue. Strength not crucial.

BUMPERS Angle Iron (aluminium) To be attached to body with screws (M4)

Materials List

Part Material Length (mm)

Width (mm) Thickness (mm)

Body shell Aluminium 350 250 2Back panel Aluminium 250 80 2Top Cover Acrylic

(Clear) 250 250 3

Wheels Nylon 60 diameter 30Bumpers Aluminium

(angle iron)170 10 2

Workshop Programme

Name WEEK 5

WEEK 6

WEEK 7

WEEK 8 WEEK 9 WEEK 10 WEEK 11

WEEK 12

CARL WHEELS BODY HOOD

FINISHINGPROGRAMMING, ELECTRONICS

& CALIBRATIONJAMIE PRONG BUSHINGS

MICHAEL BODY BALSA ELECTR.