For the 3D-printed adapter, I would print it in such a way that a steel or aluminum tube could be inserted in the center. This would support the load so the plastic itself wouldn't have to. If necessary, you could epoxy the tube in place, but I think it would be fine just inserted into the adapter.

Wow, what perseverance! Great job, Flavor Lab! Thanks for the many shout-outs.

Lofty pursuits (which is a very awesome and wholesome hard-candy channel by a guy name Greg and his team) also tried heir hands at candy-panning. Video's 155, 156 (and maybe later) have their version of the panning machine. It also uses the kitchenaid.

Your model requires forces in two directions but 3d printed models are not equally strong in every direction. First, the flat disc that goes against the bowl: Because of the bolts you use to attach to the bowel, the direction of print you chose is great - it's strong in that direction. Your problem is that you are shearing at the layer lines on the shaft - even at 100% infill you will get a shear at that point. I believe the ideal solution is split the model into two parts. Print the flat disc part as you do. And then print the shaft rotated long-wise on the bed (I'd still use 100% infill for this part). Provide a recess in the disc part to press / glue the shaft into. This will be much stronger. I'd recommend the book Functional Design for 3D Printing by Clifford Smyth.

FDM 3D prints are usually a lot weaker in the vertical direction where the layer lines exist. Besides making it 100% infill, you could also try printing it in the other directions or use a stronger material like PC-CF.

You should increase the wall count of your 3D prints. Infill does not add a lot of structural integrity, but 5-6 standard .4 walls will be more or less the same as 100% infill, at least for such an application

This is one of the best videos I’ve seen on KZread in a long time! The trials and error, failing and succeeding. I really like how you shower us this process because too many people just show us the end result and we experienced these failures.

Yeah the problem was most likely the material you were using.

From my experience with 3D printing, one of the issues that comes up a lot is that the way it deposits material layer by layer leads to a bunch of fault lines parallel to the build plate, so if you’re trying to make something that can handle twisting, it’s better to orient the piece so the fault lines are not perpendicular to the axis of rotation. In this case, that would essentially mean just printing the part on its side, even if it means you’ll have to use more support material.

Before watching the rest of the video, I theorize if you somehow attached a metal mixing bowl to a drill (with adjustable speed), you would have a very cheap version of this tool...

War flashbacks of Claire making M&M's are coming back to me

A few things you can do to improve the strength of that shaft joint are to add a small fillet and print it at an angle so the shear force is not parallel to the layer lines of the filament. Very common problem when designing parts with a 3D printer!

You definitely need to use a spray gun and probably chocolate melted with extra cacao butter. And that way you can spray fine layers. I also think it would help if the pan rotates faster.

Engineer here, @

Halfway through I forgot I was watching a video on making m&m's. Great video, really interesting to see the process to make them.

I liked this episode a LOT. I tend to work with either the simpliest or the most standard tools available - and sometimes they're just not enough, and I have this idea of what I'd need but so far have not tried to make a tool of my own. But it needs to happen - so thanks for the inspiration!

This was an awesome experiment! I really enjoyed seeing your process of trial and error. End product looked great IMO considering it was all DIY :)

They look 100% better than M&M and teast I bet too! Well done

They look so much like captain crunch

Your channel is very underrated, please don't get discouraged as they're really great videos.