It’s been getting on for six weeks since my last update on HRH. I haven’t been idle and the process of eliminating shorts has been a journey of education, frustration and determination to not let it beat me.

Starting with a belt and braces approach I remade the drawbar in Delrin.

Next, having already added insulated washers to the wheels which are insulated at the hub I turned my attention to the driver which are rim insulated. I had previously made inner balance weights from Nickel sheet and although I had stuck them to the wheels with epoxy I was concerned that they be be helping to bridge the insulation gap should they touch the frames. My answer was to remake the balance weights for the insulated side from styrene.

Then I noted that the cross piece pf the rear inner frames was touching the tyres of the rear truck wheels. You can see the plate with the half etched rectangles in the image below.

A look at the instructions mentions the possible need to remove the half etched sections in case of shorts so the plate was removed and the rectangles removed.

Sadly, this didn’t cure the problem so in the end I took of the outer sections leaving just the brace in the middle.

As it turned out that solved one problem but left another which will be the subject of another post