So openbuilds have announced new angled tee nuts to allow for weird angles out of extrusion such as 60, 120 135 degrees. And to top it all off, it only costs £8 for a pack of 10. What do people think of them? Will they be the new joint of choice for Deltas?

I can only see they may be a bit weak, and no means to attach 2040 v slot to the middle section. Also, I'm not sure I'd like the idea of supporting the towers from a thin strip of metal, but perhaps when paired up with supporting plastic brackets it will give an affordable means to make super rigid deltas.

[openbuildspartstore.com]

How would you connect the vertical towers to a delta-triangle?
The hinges seem to have only 1 DOF. The robotdigg extruded alu-corners are much better for that purpose ( and cheap ). And they come with Nema17 brackets too.

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o_lampe
How would you connect the vertical towers to a delta-triangle?
The hinges seem to have only 1 DOF. The robotdigg extruded alu-corners are much better for that purpose ( and cheap ). And they come with Nema17 brackets too.

They have build examples of delta structures, the tower would attach to the central point of the bracket. I would agree that robotdigg corners are better for the job, but they cost about £70 with the cheapest delivery option. These cost a mere £8 for 10. 2 packets of these would be more than enough to build a delta, and then brackets would have to be printed. A lot of people are still printing corners for delta, this may help to make those builds stronger.