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Learning Centre - Jack Hammer Gear Cover
bradley_oleksyn549
Member Posts: 2 ✭
To finish this exercise you are to achieve 0.445kg mass. I was only able to achieve 0.423kg mass. The closest answer for me to choose from was 0.432kg mass on the test so I chose it and was awarded an incorrect answer. However on examination of the Onshape build found that the back two holes didn't penetrate the Cover where they were suppose to have according to the exercise instructions thereby providing a larger mass of 0.445kg vs 0.423kg in the case of my interpretation of the instructions - 6 holes that fully penetrated the cover body. The un-removed drill hole material would be the contributing factor of the extra mass 0.445 - 0.423 = 0.022kg. I am leaving this exercise incorrect and moving on. I do hope some admin is able to rectify so that I can achieve the necessary score to be successful in this exercise. Please be in touch 😊. Let me know if there is a simpler way to place the drawing points for holes without having the construction lines to determine these points too. I just notice that there are no construction lines shown in the exercise version and wondered how they were able to achieve this without the offset measurements of 4mm and 16mm, well at least without anything showing.
My Drawing:
Exercise Drawing:
Answers
Your Sketch 10 is on the wrong plane, so the top two holes miss the part. Double-check Step 4.