Safer Strides had a budget of $3,000 to create our Beta Prototype. With a limited budget, we had to prioritize our expenses and decide how to allocate funds. Fortunately, for the scope of our project, we were able to manage this comfortably. As each of the three sub-teams submitted purchase orders, the budgeting managers ensured that what was being requested was reasonable and other cost-effective ideas were brainstormed when expensive parts needed to be purchased.

Below is a track list of everything that we ordered to get our Beta prototype working.

Date Ordered Date Received Item Amount Unit Cost Total Cost Link Team
2/23/2023 3/3/2023 Webcam 1 $50.00 $50.00 Link Tracking
2/23/2023 3/3/2023 Raspberry Pi 1 $280.00 $280.00 Link Tracking
2/23/2023 3/21/2023 12 V to 5 V converter 1 $13.50 $13.50 Link Tracking
3/3/2023 3/21/2023 Prox Sensor 1 $9.00 $9.00 Link Tracking
3/3/2023 3/21/2023 Jumper Wires 1 $14.00 $14.00 Link Tracking
3/3/2023 3/21/2023 Motor 2 $61.19 $122.38 Link Structure
3/3/2023 3/21/2023 LED Strip Light 1 $9.80 $9.80 Link Electrical
3/3/2023 3/21/2023 Siren and Stainless Steel Enclosure 1 $58.99 $58.99 Link Electrical
3/3/2023 3/21/2023 2Pc 12V 9A Battery 1 $44.99 $44.99 Link Electrical
3/3/2023 3/21/2023 2Pc Light Bulb Socket Holder with Wire Connector 1 $6.50 $6.50 Link Electrical
3/3/2023 3/21/2023 16 awg Silicone Electrical Wire 1 $18.88 $18.88 Link Electrical
3/3/2023 3/21/2023 Sabertooth dual 25A motor driver 1 $125.00 $125.00 Link Electrical
3/7/2023 3/21/2023 Motor Gear 2 $26.55 $53.10 Link Structure
3/7/2023 3/21/2023 Large Gearbox Gear 2 $45.31 $90.62 Link Structure
3/7/2023 3/21/2023 ANSI Chain Sprockets #25 6 $14.15 $84.90 Link Structure
3/7/2023 3/21/2023 ANSI Roller Chain #25 6′ 1 $35.28 $35.28 Link Structure
3/7/2023 3/21/2023 3×1″ 3′ Tube 1 $28.94 $28.94 Link Structure
3/7/2023 3/21/2023 1×1″ 6′ Tube 5 $31.20 $156.00 Link Structure
3/7/2023 3/21/2023 1×1″ 1′ Tube 1 $10.30 $10.30 Link Structure
3/7/2023 3/21/2023 Shaft 1/2″ Diam 20″ long 3 $16.87 $50.61 Link Structure
3/7/2023 3/21/2023 Motor Controller – Sabertooth Dual 25A DC 1 $125.00 $125.00 Link Structure
3/7/2023 3/21/2023 6 in. Pneumatic Wheel Kit 6 $29.00 $174.00 Link Structure
3/24/2023 3/31/2023 Bayonet Base Floodlight Bulb, 12V 2 $22.11 $44.22 Link Electrical
3/24/2023 3/27/2023 Arduino UNO REV3 [A000066] 1 $28.50 $28.50 Link Electrical
3/24/2023 3/27/2023 12V Sealed Lead Acid Battery Charger 2 $9.49 $18.98 Link Electrical
3/24/2023 3/27/2023 UMLIFE 2PCS MOS FET PWM 1 $14.99 $14.99 Link Electrical
3/24/2023 3/27/2023 MCIGICM 400 Points Solderless Breadboard 1 $6.99 $6.99 Link Electrical
3/24/2023 3/27/2023 20 PCS Alligator Clips Electrical 1 $5.99 $5.99 Link Electrical
3/24/2023 3/27/2023 9v power clip to Arduino Input Clip 1 $5.99 $5.99 Link Electrical
3/24/2023 3/28/2023 Bearings 12 $12.21 $146.52 Link Structure
3/24/2023 3/27/2023 Breadboards 1 $6.69 $6.69 Link Tracking
3/24/2023 4/4/2023 Google Coral 1 $135.00 $135.00 Link Tracking
3/28/2023 4/11/2023 2Pc 12V 9A Battery 1 $44.99 $44.99 Link Electrical
3/30/2023 4/11/2023 3003 Aluminum Sheet 1 $28.66 $28.66 Link Structure
3/30/2023 4/11/2023 6061 Aluminum Sheet 18×18 2 $76.89 $153.78 Link Structure
3/30/2023 4/11/2023 Double Hub 14t #25 Sprocket 2 $9.99 $19.98 Link Structure
3/30/2023 4/11/2023 Shaft Collar 2 $2.99 $5.98 Link Structure
3/30/2023 4/11/2023 Shaft 1/2″ Diam 20″ long (soft) 3 $9.14 $27.42 Link Structure
4/7/2023 MOSFET Power Switch 5 $9.95 $49.75 Link Electronics
4/7/2023 4/7/2023 Home Depot Hardware $11.60 Structure
4/7/2023 4/7/2023 Ace Hardware $21.19 Structure
4/10/2023 4/15/2023 1/2″ 1 Foot Hex Shaft 2 5.96 $11.92 Link Structure
4/12/2023 4/15/2023 ANSI 25 Connecting Link 4 $2.32 $9.28 Link Structure
4/12/2023 4/15/2023 ANSI Chain Sprockets #25 2 $14.15 $28.30 Link Structure
4/18/2023 4/20/2023 Arduino Uno REV3 1 $28.50 $28.50 Link Electrical
4/18/2023 4/20/2023 Jadeshay RC Transmitter 1 $31.00 $31.00 Link Structure
4/22/2023 4/25/2023 Motor Gear 1 $26.55 $26.55 Link Structure
4/22/2023 4/25/2023 5/16″ Left Hand Threaded Nuts 1 $9.00 $9.00 Link Structure
4/25/2023 5/10/2023 Motor Gear 1 $26.55 $26.55 Link Structure
4/25/2023 5/10/2023 8mm Left Hand Threaded Nuts 1 $8.33 $8.33 Link Structure
5/1/2023 5/10/2023 Arduino Mega 1 $48.20 $48.20 Link Tracking
5/1/2023 5/1/2023 Hobby Lobby $43.15 Structure
TOTAL ORDERED: $2,609.79

 

According to our budgeting track sheet, we have spent around $2,600 on our robot. We were able to manage the costs smoothly by facilitating communication among subteams and utilizing CAD design for the robot. In addition, we monitored the expenses of each subteam to ensure equitable distribution of the total budget among all subteams. Despite encountering some unexpected expenses near the end of the semester that were required for creating a functional prototype, we still managed to have $400 left within our budget. Furthermore, as the semester progressed, the number of purchase orders significantly reduced, which alleviated any concerns of potentially exceeding the budget.