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| * Cut the bottom chamber down mercilessly to save mass, aiming to get the sum of both chambers below 500g using my recommended settings. Haven't reached it yet, but we're close. | | * Cut the bottom chamber down mercilessly to save mass, aiming to get the sum of both chambers below 500g using my recommended settings. Haven't reached it yet, but we're close. |
| ** Most noticeably, I changed the motor mount from a rectangular to a trapezoidal prism, and then cut an inverted trapezoidal prism out from its center. | | ** Most noticeably, I changed the motor mount from a rectangular to a trapezoidal prism, and then cut an inverted trapezoidal prism out from its center. |
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| ==Thoughts
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| * Rather than mounting the RC522 directly onto the bottom of the top chamber, we print a short mount for it (building the mount into the hotbox would make it very difficult to print). This reduces the heat directly transferred to the RC522, without adding new connectors. The necessary screw holes into the bottom of the chamber already exist.
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| * I cut out chunks from the eight "fat corners" of the hotbox. I'd like to make these siting areas for dessicants. This <i>added</i> weight, presumably due to more walls vs sparse infill, so I changed it back.
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| * I experimented with adding a kinda inverted eggholder (actually just a bunch of inverted frustra) to the underside of the bottom chamber, in the hope of eliminating warping. It didn't really pan out (a good number detached from the build plate), and you need defeat warping for the top chamber anyway, so I removed them.
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| * I'm experimenting with a [https://en.wikipedia.org/wiki/Hypoid_gearboxes hypoid gear] to replace the less efficient [https://en.wikipedia.org/wiki/Worm_drive worm drive], and also hoping to reduce the choppiness of the platter rotation.
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| ==Electronics== | | ==Electronics== |