Industrial Engineering Work

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Industrial Engineering Aspects :

Industrial Engineering Aspects Manufacturing Plan Ergonomic Analysis Financial Analysis

Manufacturing Plan:

Manufacturing Plan No. Objective 1. Ability to run as stand-alone machine 2. Compatible with teams design 3. Able to run on any sturdy flat surface 4. Stationary when operating 5. Able to mix more than one material 6. Ability to extrude material 7. Capable of 3D movement 8. Safe 9. Hands guarded from moving parts 10. Appropriately Sized 11. Powered by standard supply Metrics Specification Units Ideal Value 1 Weight of Machine Pounds < 45 2 Width of Machine Inches < 20 3 Length of Machine Inches < 20 4 Height of Machine Inches < 20 5 Cost of Manufacturing US $ < 300 6 Maximum Power Watts <75 7 Noise dB <75 8 Number of People to Operate Person 1-2 Customer Needs Design Metrics

Chassis Manufacturing :

Chassis Manufacturing No. Instruction 1. Attach both of the motor holders onto the base walls, using #8-3/4in wood screws. 2. Using a hand saw, cut all shafts to the desired dimensions. See SW Drawings below for exact specifications. 3. Insert shafts into. 28in opening of shaft holders and motor holders 4. Add the back holder pieces onto ends of the shafts and attach them to the back walls using the #8-3/4 wood screws. 5. Rotate the shaft holders to insert middle shafts and printer head. 6. Attach other end of shaft holder simultaneously. 7. Attach z bracket bottom and top holders onto back walls with same screws. 8. Insert 2 shafts in z direction into the .28 in openings of the z brackets and plate holder. 9. Place two stepper motors for xy direction onto motor holders with super glue or desired adhesive for stability. 10. Place z direction motor onto base placed above bottom z bracket. 11. Attach pulleys on all 3 motors for belt system. 12. Attach belt onto pulleys and run through the xy and z directions for desired movement of printer head. Ready to Run (ET: 1.5 hr ) Tools Needed: Screwdriver Drill Adhesive (superglue) Hand Saw

Extruder Manufacturing :

Extruder Manufacturing Ready to Run (ET: 1 hr ) Tools Needed: Drill (1/8” bit) SAE Allen Wrench Set 7/16” Wrench Phillips/Flathead Screwdriver No. Instruction 1. Slide the thrust bearing onto the auger, followed by the bushing. 2. Slide the flange onto the auger, with the curved side facing out. 3. Thread the end of the 8 in. pipe nipple with section removed into the flange, flat side of the flange out. Tighten. 4. Slide the hopper onto the nipple. 5. Slide the auger into the pipe nipple assembly. Make sure the auger can be rotated freely by hand. 6. Lay out the 4 bolts and put a washer on each. 7. Slide the bolts through the first flange, then put a white spacer on each bolt, then slide through the wooden support followed by the second flange. 8. Put a washer and nut on each bolt. Tighten by hand, be careful not to crush the white spacers. 9. Place the washer onto the motor shaft. 10. Slide the hex socket onto the motor shaft. 11. Attach the motor to the wood support using the 4 bolts. 12. Mark the base with the outline of the motor mount. 13. Predrill holes in the base 1/16” for all predrilling, two for the motor mount. 14. Partially screw in the motor mount from the underside. Use them to mark the holes in the motor mount. 15. Predrill motor mount, finish installing screws from the underside. 16. Attach the two white angle brackets to the bottom of the main support with screws. 17. Line up main support on the base, and repeat previous steps for predrilling. 18. Ensure supports are vertical and alignment is still correct. 19. Install two screws through the base as was done for the motor mount.

Ergonomic Analysis :

Ergonomic Analysis Proof of Principle Prototypes: Chassis Extruder

Financial Analysis: Extruder :

Financial Analysis: Extruder No. Part Description Purchased From QTY Price/Unit Total Cost 1 Auger 5/8 in. Bosch Jet 1 $11.68 $11.68 2 Mueller Proline 1/2-in. Flange Fitting Hardware World 2 $2.50 $5.00 3 Recycled Wood Base Home Depot 1 $0.00 $0.00 4 7/16 in. Socket Bit MSC Industrial Supply 1 $10.20 $10.20 5 Hopper** 3D Printed** 1 $0.62 $0.62 6 Angle Bracket Ace 2 $2.29 $4.58 7 Bushing** 3D Printed** 1 $15.80 $15.80 8 Wood Support Home Depot 2 $0.00 $0.00 9 Washer Home Depot 10 $0.25 $2.50 10 Hex Nut Home Depot 4 $0.25 $1.00 11 12 V Gear Motor Amazon 1 $12.99 $12.99 12 12 V Power Switch Amazon 1 $8.99 $8.99 13 Bolts Home Depot 4 $0.30 $1.20 14 Screw Home Depot 13 $0.10 $1.30 15 8 in. Pipe Nipple Home Depot 1 $3.75 $3.75 16 Thrust Bearing Home Depot 1 $4.47 $4.47 17 White Spacer** 3D Printed** 4 $0.51 $2.02         Extruder Cost $86.10

Financial Analysis: Chassis:

Financial Analysis: Chassis No. Part Description Purchased From QTY Price/Unit Total Cost 1 3D Movement Belt Amazon 2 $6.78 $13.56 2 Aluminum Rods Home Depot 6 $2.00 $12.00 3 Wood Wall Menards 3 $0.00 $0.00 4 Brackets Home Depot 4 $0.50 $2.00 5 Screw Home Depot 24 $0.10 $2.40 6 Shaft Holder** 3D Printed** 2 $1.91 $3.81 7 Left Motor Holder** 3D Printed** 1 $1.22 $1.22 8 Right Motor Holder** 3D Printed** 1 $1.22 $1.22 9 Left Back Holder** 3D Printed** 1 $0.72 $0.72 12 Right Back Holder** 3D Printed** 1 $0.72 $0.72 13 Syringe Holder** 3D Printed** 1 $7.31 $7.31 14 Wood Base Menards 1 $0.00 $0.00 15 Plate Holder Menards 1 $0.00 $0.00 16 Stepper Motor Amazon 3 $14.11 $42.33 17 Top Z Bracket** 3D Printed** 1 $0.55 $0.55 18 Bottom Z Bracket** 3D Printed** 1 $0.31 $0.31 19 Pulley (20 Teeth) Amazon 3 $10.17 $30.51         Chassis Cost $118.66 **See the estimated cost calculated for 3D printed parts in table titled "Cost to 3D Print" Total Prototype Cost $204.76

Financial Analysis: Estimated Cost To 3D Print:

Financial Analysis: Estimated Cost To 3D Print Part Volume (cm^3) QTY Total Volume (in^3) Total Cost Hopper 20.8 1 20.8 $0.62 Bushing 15.8 1 15.8 $0.47 White Spacer 16.8 4 67.2 $2.02 Shaft Holder 31.79 2 63.58 $1.91 Left Motor Holder 40.63 1 40.63 $1.22 Right Motor Holder 40.63 1 40.63 $1.22 Left Back Holder 23.92 1 23.92 $0.72 Right Back Holder 23.92 1 23.92 $0.72 Syringe Holder 243.51 1 243.51 $7.31 Top Z Bracket 18.35 1 18.35 $0.55 Bottom Z Bracket 10.3 1 10.3 $0.31 Spool Mass Cost/Spool Filament Density   1000 grams 25 dollars 1.2 grams/cm^3 Equations   Calculation   Density=Mass/Volume V=1000g/1.2g/cm^3=833.3cm^3 Mass=Volume x Density 25$/833.3cm^3=0.03$/cm^3 Volume = Mass/Density .03$/cm^3 * volume = estimated cost

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