The rota-beam command oscillates 205°, the perfect amount to display 3 of the beacon's 4 bulbs. But how does it oscillate? It seems like the travel is too far for a standard cam / arm mechanism like the 174. I think it reverses motor polarity.
I noticed a few things;
![PXL_20221230_124906058.PORTRAIT.jpg PXL_20221230_124906058.PORTRAIT.jpg](https://elightbars.org/forums/data/attachments/196/196911-94bfd2522c034876ecc50f69c012a33f.jpg)
![PXL_20221230_124901100.jpg PXL_20221230_124901100.jpg](https://elightbars.org/forums/data/attachments/196/196910-4e76af7d33f3ccd889e220421863144f.jpg)
![PXL_20221230_124923416.PORTRAIT.jpg PXL_20221230_124923416.PORTRAIT.jpg](https://elightbars.org/forums/data/attachments/196/196912-0322c9fbe77d4a683d7632fe93ca9725.jpg)
![PXL_20221230_124940167.PORTRAIT.jpg PXL_20221230_124940167.PORTRAIT.jpg](https://elightbars.org/forums/data/attachments/196/196913-f4f99dca90457a842bae2eb83b017eef.jpg)
Here is a video of it running
174 mechanism, not at all similar.
![174.JPG 174.JPG](https://elightbars.org/forums/data/attachments/196/196909-c7aa99a61923f6a67af08ede94b843ac.jpg)
And if you are curious about Rowe motor company... well here is what happened to them. Superfund site! https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.Cleanup&id=0202330
I noticed a few things;
- The motor and light itself have no required polarity. You must ground one wire and then power the other.
- The motor reverses if you reverse the polarity.
- There are two lugs on the bottom that seem to correspond with stop points of oscillation.
![PXL_20221230_124906058.PORTRAIT.jpg PXL_20221230_124906058.PORTRAIT.jpg](https://elightbars.org/forums/data/attachments/196/196911-94bfd2522c034876ecc50f69c012a33f.jpg)
![PXL_20221230_124901100.jpg PXL_20221230_124901100.jpg](https://elightbars.org/forums/data/attachments/196/196910-4e76af7d33f3ccd889e220421863144f.jpg)
![PXL_20221230_124923416.PORTRAIT.jpg PXL_20221230_124923416.PORTRAIT.jpg](https://elightbars.org/forums/data/attachments/196/196912-0322c9fbe77d4a683d7632fe93ca9725.jpg)
![PXL_20221230_124940167.PORTRAIT.jpg PXL_20221230_124940167.PORTRAIT.jpg](https://elightbars.org/forums/data/attachments/196/196913-f4f99dca90457a842bae2eb83b017eef.jpg)
Here is a video of it running
174 mechanism, not at all similar.
![174.JPG 174.JPG](https://elightbars.org/forums/data/attachments/196/196909-c7aa99a61923f6a67af08ede94b843ac.jpg)
And if you are curious about Rowe motor company... well here is what happened to them. Superfund site! https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.Cleanup&id=0202330
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