Playing with my late 1800's vintage New Haven Mfg. Co. Metal Planer today. When it comes to old school machinery, it does not get much more old school than this! While considered by most to be totally obsolete in today's world of computer controlled machines, this thing is really slow. But, it was effective back then and surprisingly, there are still quite a few of these old machines still in operation commercial for a few jobs that they excel at - such as machining long flat surfaces. I restore

During a finishing operation the bed of an industrial planer moves alternately 30 in. to the right and 30 in. to the left. The velocity of the bed is limited to a maximum value of 6 in./s to the right and 12 in./s to the left; the acceleration is successively equal to 6 in. / s^2 to the right, zero, 6 in. / s^2 to the left, zero, etc. Determine the time required for the bed to complete a full cycle, and draw the v-t and x-t curves. | Numerade

How to Change the Blades in Your Planer