Wheelchair Hackathon plan
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Everyone (Planning session)Prerequisite(s)Parts NeededPriorityIs Prereq?Comments
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1.1Review project, goals, design, and scheduling with the team and get everyone up to speed and on the same page.xx1y
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1.2Define major attachment points and final shape of the vehicle to coordinate modifications.Fab Team 1x1y
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1.3Schedule activities for the day and divide into teams.xx1y
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Fabrication Team 1 (Led by Albert Cousins)
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2.1Decide on caster/suspension system for the front and back of the vehicle.x???1y
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2.2Refine and (possibly) begin construction of the front assembly of the vehicle. Design electrical connections if necessary.x???1y
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2.3Refine and cost roll cage model. Including handles and bracing.4.2, 4.4???1y
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2.4Finalize whip bumper design and order materials.x???1y
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2.5Weld a receiver to the back of the vehicle to receive a winch or trailer hitch.2.1Reciever2y
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2.6Remove winch from Shane's Jeep. Decide on how to adapt it to the receiver.xCutting torch, car battery for testing2y
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2.7Investigate the possibility of wiring up a fire extinguisher with spray nozzles on the engine compartment and transmission.xFire Extinguisher, high-temp tubing3y
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Automotive Team (no leader yet)
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3.1Grease zerks and tighten the play out of the levers and seat. Check fluids and filters.xGrease gun, grease1y
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3.2If available, add holders for an extra gas tank, a car battery, and a fire extinguisher.1.2Car battery for testing, jerry can, fire extinguisher1
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3.3Fix jammed neutral lever on right-side hydraulic pump.3.1x1y
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3.4Troubleshoot motor and operations, making a list of manitenance tasks and checking them off.3.1???1y
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3.5Check hardware and spot rusted zones, replacing where possible to reduce further rusting. Use nylon washers where possible to reduce noise.3.1Stainless Steel hardware3y
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3.6Perform extended run to test for overheating, fuel consumption (~1.8 GPH?), and other potential issues.3.3, 3.4, 3.5Gas1
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3.7Build a better ramp with 15 degree max angle and full widthxWood?2
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3.8Check and replace fuses where necessaryxReplacement fuses1
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3.9Ensure that the gas tank is free of dirt and debris and clean if necessary.xx2
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3.10Install front lights.xRunning lights1y
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3.11Design and mount pulley system for alternatorxAlternator3y
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3.12Look into replacing drive tires with higher traction onesxTires2
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Safety Team (led by Steven Sutton)
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4.1Price and order materials for 5-point harness.2.3x1y
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4.2Develop a testing strategy for limitations in terrain and driving angle.xLoad cells1
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4.3Develop a training program for certification.2 & 3x1Will use some safety videos found online and a simple form.
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4.4Design handles and bracing to ease getting in and out of the platform.xx1
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4.5Determine appropriate emergency stops and safety mechanisms and design them in.2 & 3e-stop switches1
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Electronics Team (no leader yet)
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5.1Prototype and test circuitry for lights (LED and headlights) using 12/24v SLA if possible.xLED Headlights, wiring, test battery1
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5.2Develop and (possibly) test access control system (new, better key).xAccess control hardware (key?)2
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5.3Assess redesign of control panel and design a new one if possible. Otherwise, design modifications to current panel including fixing the light switch.x???2
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5.4Determine viability of speaker system and design for mobility if feasible.x???4
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5.5Identify components needed for Arduino accelerometer tilt warning system.xArduino for testing, accelerometer/gyro shield2
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5.6Design system to utilize car alternator for recharge and inverter (work with Automotive Team on 3.11)3.11???3
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Art Team (Led by Alan Fay)
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6.1Decide on seat design and materials. Begin construction if possible.4.1Seat materials / New seat2Could possibly use seat from scooter
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6.2Decide on color and decoration scheme (coordinate with electronics team).x???2y
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6.3Design a name and logo.6.2x2
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6.4If necessary, make arrangements for a demo and small fundraiser.xx2Target raising another $500
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6.5Design sound deadening solutions (coordinate with fab team).3.5Dynamat and structural support, Cooling fan?2
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6.6Design rain protection (awning, umbrella holder, etc...).x???1
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6.7Thoroughly clean and dry the mower and sand down rusted areas.xdetergent / mineral spirits, sandpaper2y
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6.8Paint the current model, even if the body panels may be redesigned later.2.1, 2.5, 3.10, 6.2, 6.7Paint supplies2y
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6.9Work with Fab team to minimize noise from body panels as they are reassembled after painting.6.8High-temp foam/bushings, nylon washers3
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6.10Install new grips for the handles.xGrip replacements3
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