@@ -4,7 +4,7 @@ I've wanted to build a rotary tool for a minute, to knife-cut things, [wire plot
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@@ -4,7 +4,7 @@ I've wanted to build a rotary tool for a minute, to knife-cut things, [wire plot
The idea is to have a 4th axis (rotating in the xy plane, the A axis) that we can add to machines real easy. One big through hole. Then, drop tools in the top of it. This is really very much like the Zund that Sam uses to plot wires.
The idea is to have a 4th axis (rotating in the xy plane, the A axis) that we can add to machines real easy. One big through hole. Then, drop tools in the top of it. This is really very much like the Zund that Sam uses to plot wires.
## Rotary TODO
## Rotary TODO
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@@ -12,6 +12,24 @@ The idea is to have a 4th axis (rotating in the xy plane, the A axis) that we ca
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@@ -12,6 +12,24 @@ The idea is to have a 4th axis (rotating in the xy plane, the A axis) that we ca
- dev some tools
- dev some tools
- do mocontrol for tangent axis
- do mocontrol for tangent axis
- N2 flatheads -> top of taper is no-bueno: the lifted ledge and support make this aweful
- N2 'threaded' hole size should ++ ... write this down
- N2 thread bulges out, probably fixed with diameter increase, but should be nicer in any case
This is coming along, I've improved my tapered spline some (to have less contact, and a steeper taper) but I expect it will eventually anneal towards some kind of (more) kinematic joint. Kind of tricky piece of kit to do in a statisfying way, actually.
The other trick is learning how to print these teeth properly. Here's my attempt, after just drafting in fusion the profile exactly to spec:
The teeth should contact *first* at the trough of the belt (top of the pulley - this sets the diameter) and the 'tooth' of the belt should *just* nest into the pocket below it. Will do some CAD fanangling and try this again...
