Differences

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--- newsletters:2024-05 [2024/06/02 22:53] – [Omar] osnr
+++ newsletters:2024-05 [2024/06/03 00:45] (current) – [New parallel evaluator] osnr
@@ Line 32: / Line 32: @@
       * {{newsletters:img_5525.gif}}
     * Setup at the Clive Davis Gallery:
-      * {{newsletters:img_5505-medium.jpeg?300px}} {{newsletters:img_5508-medium.jpeg?300px}}
+      * {{newsletters:img_8712.jpeg?250px}} {{newsletters:img_5505-medium.jpeg?250px}} {{newsletters:img_5508-medium.jpeg?250px}} {{newsletters:img_8532.jpeg?250px}}
       * Andrés and Omar disassembled the cart system from ITP (in Downtown Brooklyn) and brought it all back to the studio in East Williamsburg:
-        * {{newsletters:omar_andre-s_traveling_back.jpeg?400px}}
+        * {{newsletters:omar_andre-s_traveling_back.jpeg?300px}}
 ==== Small system improvements ====
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     * Slightly updated the [[guides:gpu|GPU guide]] to reflect this
   * [[https://mmm.s-ol.nu|s-ol bekic]] added support for [[https://git.s-ol.nu/forks/folk/-/tree/printer-config/|paginating long programs]] so they print on multiple pages! (as well as A4 support) [[https://github.com/FolkComputer/folk/issues/58|we've wanted this for a while]]
+  * s-ol made a lot of [[https://github.com/FolkComputer/folk-live-build/pull/4|improvements to the live USB setup.folk config file]], so you can set hostname and configure a printer
+    * Omar added persistence of calibration and printed programs, and fixed file permissions for git pull, so the live USB is totally usable as a long-term system now!
   * Omar did a cleanup of the repo, removing the pi/ and play/ folder (preparing for opening the repo more to the public)
     * Inlined hardware interface code into the virtual-programs -- should make it much easier to read since all GPU stuff is in one file, all AprilTag stuff is in one file, all camera stuff is in one file, etc
@@ Line 57: / Line 59: @@
   * Omar has been working a bit on the portable gadget from last month
     * Got a good hand grip, working on and off on CAD for enclosure (need to fit Pi, Pi camera, threaded inserts for hand grip and projector, and be able to physically fit my hand in to assemble all of it; think I need to break it up into panels)
-    * {{newsletters:img_8568.jpeg?200px}}
+    * {{newsletters:img_8044.jpeg?0x300px}} {{newsletters:img_8568.jpeg?0x300px}}
   * Vedran [[https://github.com/FolkComputer/folk/pull/136|fixed a major breakage with printing AprilTags]] (came from changes to generate image to project AprilTag, broke printing)
+  * Omar did a tiny amount of work on RFID localization, fixing some misaligned RX/TX spacing issues -- still trying to get it to reliably run for more than 1 round (not slow down over time, bail/reset properly on fail so it can continue):
+    * {{:newsletters:pasted:20240602-230133.png?400px}}
 ==== CNC ====
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 Omar finished porting [[https://owentrueblood.com|Owen's]] gcode parser and tool calibration and preview logic from [[https://github.com/jmpinit/projected-toolpath-preview|the original prototype]]. Here's how CNC tool calibration looks, where you move the machine to the 4 points and type their CNC coordinates in:
-{{newsletters:00-calibration-bed.jpeg?300px}}
+{{:newsletters:pasted:20240602-225922.png?300px}} {{newsletters:00-calibration-bed.jpeg?300px}}
 Tested it with a basic job -- notice the projected preview in green vs. the actual cut in the wood:
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 {{:newsletters:pasted:20240602-224725.png?500px}}
+{{:newsletters:pasted:20240602-230714.png?500px}}
 It was in decent shape in December, so work on 3D calibration this month has involved a lot of small/polish tasks:
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   * Fixed some C/library concurrency issues, fixed incorrect locking on Holds
   * Fixed really weird lldb issue with C FFI? Don't really understand this
-    * {{:newsletters:pasted:20240602-214914.png}}
+    * {{:newsletters:pasted:20240602-214914.png?500px}}
   * Either very clever or a terrible hack: use SIGUSR1 to interrupt arbitrary work on other threads that depends on a retracted statement
     * works for anything in Tcl, even infinite loops, etc. but doesn't interrupt C work (like a C infinite loop) because it depends on the Jim interpreter running its internal signal handler and checking its internal signal flag a lot (which is built-in behavior in Jim)
@@ Line 126: / Line 132: @@
     * Replaces global mutex-protected priority queue; should be faster and better at natural load balancing across CPUs/threads, also lets us lock things to threads more cleanly
     * Also [[http://15418.courses.cs.cmu.edu/spring2017/lecture/progperf1/slide_019|these slides about how to deal with dependencies, scheduling in general]]
+  * Added trace page (like the log we have in mainline Folk) for debugging specific leak or elision issues (why is this statement still around? why didn't this statement go through?)
+    * {{:newsletters:pasted:20240603-004516.png?0x500px}}
 In terms of functionality, it's surprisingly almost caught up to mainline Folk -- the real issues are around performance and correctness :-)
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     * A lot of playing around with Folk programs / talking to [[https://lord.io|Robert]] about reactivity and spreadsheets and text editing. Andrés put a program on their hat, allowing them to look at things on the table and label them "Hello".
     * {{newsletters:img_8596.jpeg?300px}} {{newsletters:img_8599.jpeg?300px}} {{newsletters:img_8602.jpeg?300px}} {{newsletters:img_8607.jpeg?300px}}
-  * [[https://mmm.s-ol.nu/|s-ol]] set up a new Folk system in Milan, bringing the total to 22 systems:
+  * [[https://mmm.s-ol.nu/|s-ol]] [[https://merveilles.town/@s_ol/112461205136786159|set up a new Folk system]] at his lab in Milan:
     * {{:newsletters:pasted:20240601-142556.png?500px}}
   * [[https://www.forresto.com|Forrest O.]] has been organizing their Folk table -- it's looking really nice:
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   * We want to do a larger event as 3D calibration and/or the new evaluator and/or a new program count milestone come in. Watch this space
   * Merge 3D calibration into main and start porting decorations/apps to use it natively
-  * More work on the parallel evaluator...
+  * Performance and correctness push on the parallel evaluator...
-  * More work on RFID
+  * Try to get RFID caught up
   * Do another projector gadget iteration
-  * Open up the repo?
+  * CNC + 3D calibration?
+  * Open up the repo? Docs for that?
+  * s-ol working on international keyboard support; need to review and merge
 ===== Links we've enjoyed =====