My order from McMaster Carr showed up last night so I hurried and machined the content restraints for my new residential refrigerator in the coach. I started with some .5" 6061 aluminum rods and machined the ends down to .350" at 1.250" in length for the small spring to slip over. I also drilled and tapped a 10-32 thread in the end .400" deep so the screw would bottom out before locking down on the Delrin, which will allow it so slide about .375".
Next up it to chuck up a piece of .750" Delrin and machine a .5" opening to slip over the aluminum rod and then machine a recess for the 10-32 stainless steel socket head capscrews.
This completed end is actually the stationary end, it measures 1.125" OAL. The countersunk hole is for the head of the stainless steel socket head capsrew.
This end will slip over the .5" rod.
Here I am machining the spring loaded end. This will also be a little longer, 2.25" OAL. I am just using a .250" two-fluted end mill in the tailstock to countersink for the bolt head to float in.
Here are the components that make up the spring loaded end.
Five of each end completed and awaiting the rods.
Machining the spring area of the other rods and drilling/tapping the screw thread in each end.
Three of them completed.
One of them completed and installed.
It was late last night but I completed three of them. I have enough for two more but I will complete them after we return from our test trip, just in case I need to make any "adjustments".
Mike.