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I'm working on a replacement for a broken shelf in my fridge door. It's about 37.6 cm (14.8") on the longest axis so I need to print it in two pieces (as shown in the screenshot). Does anyhone have a good idea for a connection between the two that will be sturdy enough? The fridge door will support it from below for about half of its depth, the rest hangs free.
Wall thickness is currently at 3mm but I can increase it a bit if needed.
I believe this one is called the double penetration
I scarf at that
Also, spline:
Blind dove:
And Book "The Complete Guide to Joint Making" by John Bullar – at you (not recommended or anything, I got it for a few bucks back when Better World sold stuff dirt cheap on eBay):
Also @OP: if you're using PLA, I have heard good things about Weld-on 4 acrylic adhesive.
The what now?