Here are some of our sample calculations:
Equation Used to Calculated Gear ratio for Cutter
VR= D2/D1 = 1.783in/.764in= 2.33
Equation used to calculate Cutter RPM
W2= D1ω1/D2 = .764in*10500rpm/1.783in= 4499 RPM
Equation used to find torque on cutter shaft
Torque out= Torque in * Gear Ratio = .97ftlb *2.33= 2.26ftlb
Equation used calculate stress in a beam in bending
σ = MC/I = 35.25lbin*.25in/.00346in^4 = 2546.965PSI
Equation used to find factor of safety in above beam
Ultimate Strength/ Stress from bending = 570000psi/2546psi= 22
Equation used to Determine run time
Battery Amp hour/ Estimated current draw in 1 hour
75AH/( 15A+15A+5A) =2.14 Hrs
Below lies the results from the stress calculations of the chassis
| Beam | Max Shear | Max Moment | Max Stress | Ultimate Str. | FOS |
| LB | INLB | PSI | PSI | ||
| A | 28.39 | 198.73 | 7179.5 | 57000 | 7.939272 |
| B | 4.94 | 0 | 269 | 57000 | 211.8959 |
| F | 23.5 | 35.25 | 2546.9653 | 57000 | 22.37957 |
| C | 11.75 | 30.8 | 2225.4335 | 57000 | 25.61299 |
| L | 10 | 98.98 | 7151.7341 | 57000 | 7.970095 |
| I | 12 | 78 | 5635.8382 | 57000 | 10.11385 |
| Shaft | Max Torque | ||||
| A | 1263.88 | 27 | 1263.88 | 18000 | 14.24186 |