Tuesday, June 16, 2009

Hex loading pin for school weights

The stone/jackhammer drill has now been turned into a loading pin for school weights.

The hex rod was of a strange iron mix (very rich in coal/carburated steel?). It was impossible to drill in. It responded ok to angle grinder though. When welded it tended to melt away and leave a lot of residue, so I had to build up a lot, especially on top.
On top is a transversal 8mm pin of axle steel, welded on top of the rod (I gave up to drill through as planned).
Bar is slightly tapered at the lower end, so that the weld seams do not hinder plates to rest evenly on the bottom plate.
It is all tested with 100kg of bells. -No, I lifted it with a lever and let in dangle for half an hour. I did not think it would break. However, I feared that the bottom plate would come out of its 90 degrees position, but it held up fine. Maybe you do not understand the greatness of this feat, but it is exceptional that I can get angels correct at first time.
Pin height is 15 inches, or 38,1 cms (how do really short people deal with 15 inch pins postulated in some comps?).
Pin weight is 2,5 kg. Handle is 1,5kg, so it adds 4kg to the plate weight.
Ready to grab and go...