Now that you have a container you need something to attach it to your CPU with, the following drawings of hold-downs are based on the socket dimensions I found here.





(click for zoom)

I’ve created the hold down from plexi by using a clockdrill; after that I drilled a hole in the middle and made the outer circle, then I took a smaller one and made the inner circle.

The pictures below are of hold-downs made in plexi, unfortunately the plexi started to crack due to the low temperatures, so I don’t recommend plexi ! The next hold downs I created are made of low temperature resistant material.

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The material that I am now using is called "ertalite" or "hd-1000", it is something nobody knows, I tested this plexi with ln² and a hammer. it was not breaking. I think because previously the plexi was in direct contact with the container and the pressure due the screws it cracks. So if you use plexi for hold down you should make sure that the plexi doesn't make contact with the base plate or tube.

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The rings in the picture are used to prevent that the holddown will touch capacitors around the socket, especially in the case of LG775 (size of rings is 75cm outer and 58cm innercircle)




This is how the shape is going to be when it’s totally finished:



If you’re going to make multiple hold downs, you can always use a mall, so you just have to draw it once and they put it on the holddown and just drill the holes.



Now we have made the rings and the hold downs we can continue to the insulation of the container ->