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I am basically automating an existing manual process. The current process is steel rails and tool steel free fall mass. The repeatability is good enough as is. I just think aluminum would wear out faster leading to drift over the lifetime of the system. If you can point me in the direction...

I am no materials science expert but it is my understanding that dissimilar metals don't always play nice. I had assumed that tool steel would chew aluminum rails up not to mention the increase in the coefficient of friction between them. The goal here is to be repeatable and as close to free...

Ryre: The plan was to use one magnet only, on one side. They make a small 1/2inch axial magnet such that I could use two and have them completely isolated from the guide rail, one on either side of the same face. However these only have 4 lbs of max pull giving me a total of 8lbs. It works...

Ed: The "guides" that connect the mass to the rails are simply the half inch radius'd slots in the A2 free fall mass. We add a thousandth to the spacing of the guide rails to give half a thou tolerance between the block and the rails. But other than that, the free fall mass directly contacts...

Hey guys, I have what I assume for you will be a rather simple question. I am a summer intern at a semiconductor manufacturer and I am building a drop tester for the reliability department. I want to catch and release the free fall mass using an electromagnet. The free fall mass is approx...