Broken PD board terminal?

[FrankJ]

We broke the negative side a few years ago. We ran the negative into one of the negative Wago terminals. You could do the same for the plus side, but you would be limited by the size of the breaker. Obviously this fix is not close to legal for competition. We are using the board on a test bed with low power demands.

[EricVanWyk]

Originally Posted by FrankJ

We broke the negative side a few years ago. We ran the negative into one of the negative Wago terminals. You could do the same for the plus side, but you would be limited by the size of the breaker. Obviously this fix is not close to legal for competition. We are using the board on a test bed with low power demands.

I've done this as well, and it is completely fine as long as you can deal with the 40A breaker "in the way".

Originally Posted by slijin

Would something like this work?

All of the revisions of the PD and PI that we had to solder by hand used normal bolts and washers from the local hardware store, which is functionally equivalent to what you linked. The extra plastic would have made them look a good bit less janky :-)

That method works well enough as long as everything is tight and you use the right types of washers. Almost all of the conduction path is through the washers - you have very little contact area with the bolt itself. It is really easy to get it to look perfectly good and then fail under vibration. You need literally cut in to the board and then provide compression in to it.

The real advantage of the Wurth shanks is that they make a remarkably solid connection to the board. When they are placed, they slice through the vias and cold weld themselves in place. (Awesome).