黃裕雄數位教學 數學/資訊
onshape 註冊
https://www.onshape.com/en/education/
onshape help search
https://cad.onshape.com/help/Content/whats_new.htm?tocpath=_____1
https://hobbydocbox.com/Drawing_and_Sketching/77256020-Introduction-to-solid-modeling-using-onshape.html