816005673 Final Year Project Logbook

 ENTRY #31      In terms of the final report, simulation testing has been completed. A load of approximately 266.89N was evenly distributed over the tabletop with its legs being the fixed geometry. The static test was then run and the results were shown in a Von Mises stress plot, Displacement plot, and Safety Factor plot. This allows for a complete analysis of where the item is stressed the most, what items are displaced and what is the overall safety factor of the product.  The results are shown below :  Displacement plot  Safety Factor  Von Mises Stress plot  These factors showed that the design has been over-designed using the wrong sizing of framing example the 5mm thick supports and 3 mm thick legs. This resulted in a safety factor that is too high with a value of 294.1  such as  which can be considered as good, however, shows signs of over-engineering to save on material and ease the manufacturing cost by reducing material ne...

 ENTRY #30  Today marks the first day of my completion stage where components are complete and final assembly is at its beginning .  The image below shows the final mounting apparatus and mounted bearings for shaft 1 completed ; The final construction of the Drill apparatus is also being completed.  Images of the proposed design is shown below :  Otherwise report updates are pending as the material being created are generally simulations and will be shown in next update . 

 ENTRY #29  Continuation of fabrication proceeds, this week the completion of not only tabletop but shaft 2 was done. This allowed for focusing on motor mounting and pulley positioning is to be done.  Below shows the clearance  holes and tabletop completed and initial mock-up of motor  :  Other than the completion of the tabletop further calculations have been completed, these include gear ratio calculations, bending stresses, and keyway calculations. These should be adequate in determining the ridigity of the work machine.  Further meetings with my supervisor are to be made to ensure the correct path is being followed . 

 ENTRY # 28  Today construction of the selected concept was underway, the tabletop was to be constructed alongside the machining of both shafts 1 and 2 . while the dimensions and keyways were being determined the tabletop construction was started. This was made from 1 inch thick MDF board, a composite board made of High-density fiberboard which is an engineered wood that allows for heavy loads bearing capability and durability along with the resistance to deterioration however in the presence of water thus may promote damage however due to the conditions this machine is designed to work, there should not be high water contents.  Below shows the drawings and dimensions used to start construction :  Below shows the rough cut without any interior holes as well as the shaft 2 supports :   Parts such as pulleys and other critical materials were also being gathered .  Below shows a combination of pulleys and shafts to be used : 

 ENTRY #27  As of today the deadline for my model presentation has been set for April the 6th 2022. If I am kept on schedule I would have no problem with making this deadline however a hiccup in my building experience has occurred as my technician Imran Mohammed has called sic with covid and would be out of commission for 2 weeks. However, I have still been trying to build my project and recently installed the 4 castor wheels needed to make my design portable.  The image below shows the completed frame.  In site of working on my physical model I have also began the calculations phase of my fyp and soon would assign a meeting with my supervisor to discuss these calculations