So, you’ve probably noticed that sticking things into the Jumperless’s breadboard contacts isn’t quite as easy or smooth as regular breadboards. Here’s why:
I was being to cautious with my original design, I was worried those would catch on the underside of the plastic breadboard or hit the walls and not open enough for larger wires.
Turns out, that created the issue of leaving too much of a gap for things to get around the clip or catch on the edge.
So I’m having the spring clip molds updated with a small adjustment:
I’m just extending the arms by 0.25mm to hopefully act as a better guide for the wires as you stick them in.
Now they should cover the entire opening to the breadboard and make it much harder to get a wire around it and possibly damage the clip.
I know this doesn’t help people who already have them, and these probably won’t make it into the next batch being made, so you’ll probably start seeing these Q1 2024. I’ll set up some sort of trade-in program for people who are bothered by it and want the new revision. Or you can just ask me for a set of the new ones when they’re available and I’ll send them to you for free and you can solder in the new ones yourself.
Anyway, just to take full advantage of my Fusion 360 student license’s free cloud rendering credits, here are a bunch of renders of the new clip revision.
The reason that making changes to something like this is such a huge deal, is that they’ve made a big custom fourslide mold for this to do all the stamping and bending (here’s a SmarterEveryDay video about this exact process, just pretend everyone working there is Chinese.)
So any adjustments to the part require them to CNC out parts of the mold and add extra metal bits on the mating surfaces. It’s an expensive process, this little edit will probably cost me ~$1,500-2,500 (or if I was doing this in the US, ~$60,000.) But it bothers me that it isn’t as perfect as it could be so I think it’s worth it.
For reference, here’s what I sent to the tooling engineers at Shenzhen Fulimei
BBNew DrawingRevisedClipsUpdated.pdf (393.8 KB)
And the new drawing in case they decide to just make an entirely new mold
bbSimpleWider Drawing v1.pdf (350.4 KB)
And the STL for good measure
bbSimpleWiderOpen v2.stl (342.6 KB)
Let me know how much or little these clips are bothering you. If enough of you really hate it, I could hold up production on this new batch, have them dump the 40,000 clips they’ve made into the nearest wildlife sanctuary, and have them remake them all with this update.