Commit 19111f22 authored by Jake Read's avatar Jake Read

add image of rob axis

parent fef54dc7
......@@ -10,13 +10,15 @@ Next up, getting into fusion to get through the details, then fabbing one axis..
I pulled this off with a simple set of flat-milled parts - I was trying to work with the constraints present in the set of FREP and Milling tools in MODS, to see if we could finish end-to-end gantry generation and milling.
The result is OK, it'll certainly do - there's a line to toe between being kinematically wicked and loosing complexity. This is a bit of a midpoint - all of the axis of constraint have 'tuneability' in that their preloads can be adjusted, but all are over-constrained. There's enough (lots) flex in HDPE that this will be OK. There's a version which (not actually existing yet) is dead simple and totally constrained, and a version which is *perfect* motion-wise.
The result is OK, it'll certainly do - there's a line to toe between being kinematically wicked and loosing complexity. This is a bit of a midpoint - all of the axis of constraint have 'tuneability' in that their preloads can be adjusted, but all are over-constrained. There's enough (lots) flex in HDPE that this will be OK. There's a version which (not actually existing yet) is dead simple and totally constrained, and a version which is *perfect* motion-wise.
Overall, it's a bit bulky. There's some detailing left out before it is complete. But I think in terms of an all-arounder axis, this is pretty OK, and certainly OK for being millable from one sheet of HDPE (or alu, whatever).
![one-mill](/images/rob-rct-one.jpg)
## CAD
Available Here: https://a360.co/2qQf6wf
Available Here: https://a360.co/2qQf6wf
password is *rollercoaster*
......@@ -52,4 +54,4 @@ also uses long M3's for tuning, nuts, washers. Length to be selected.
It occured to me in class today (Rob Hart fabricated the below component!) that the two-bar flexure I had intended was acting much more like a one-link flexure. Whoops, all well. Still does its job. Here's an image of that in any case:
![onebar](/images/preload-sim.png)
\ No newline at end of file
![onebar](/images/preload-sim.png)
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