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Cam Upgrade - Reverse Engineer
Tools to reverse engineer and even improve old Cams.
Machines, when maintained, work well and can run reliably for a long time.
Changing bearings, cleaning, replacing worn parts, new paint are all routine. However, replacing, or reverse engineering, cams can be difficult if they are worn out. PSMotion have developed tools to help you manufacture new cams from old cams, and with better motion design you can even improve a machine's performance.
There are number old ways. When the original drawing or motion timing diagram is not available, you can resort to tracing it or measuring it with a Coordinate Measurement Machine (CMM).
Manufacturing cams from coordinates you measure with a CMM will not give you a nice smooth cam.
However, this often gives very poor motion results.
Even when good CMM machine data is available, it is not necessarily easy to reverse engineer an old cam to manufacture a new cam.
- Where exactly do the motion segments start and end?
- What Cam-law was used by the original supplier?
These question are difficult to answer with just the measurement data.
PSMotion have developed tools to help you manufacture new cams from old cams. These cams will often be better than the original. This gallery shows how they work.
Import Old Cam Profile
Measure old cam profile, and import the data to make a new cam
The cam coordinate data, from either a Coordinate Measurement Machine ( CMM ) or a special purpose device, can be imported into MechDesigner and attached to a part.Read more >>>
New Cam Profile and Motion
Fit a New Cam Profile and Motion to Reverse Engineer.
A Magnetic Joint forces a roller to follow the measured data from the old cam. We use the raw measured data and fit a smooth curve to the cam profile Then MechDesigner calculates the displacement, velocity and acceleration that this cam gives to a rocker or slider.
You can use the data to identify the original motion. You can also improve the original motion to give a new smoother motion profile with proper cam laws.Read more >>>
Smoother Motion Design for Old Cams
Better and Smoother Motion Design using Motion Data Overlay Tool in MotionDesigner.
With the Motion Overlay Tool you can compare a new and old cam motion in real time as you edit the new motion.
Motion Data - Position, Velocity, Acceleration - from the old cam can be displayed on top of another Motion in MotionDesigner. You can easily design a new motion to match the precision points of the old motion.Read more >>>