moar links

README.md

@@ -210,6 +210,8 @@ Blog posts, articles, tutorials, galleries, videos, et cetera.
 - [Taxan KPL 710 Demo Plot](https://www.youtube.com/watch?v=Xms3sZONQjo) - A handheld recording of the Taxan KPL 710 running its demo plot.
 - [Sweet-P Six Shooter SP-600 Plotter Demonstration](https://www.youtube.com/watch?v=xE9LVOMbKxk) – A recording of the Sweet-P SP-600 running its demo plot.
 - [Bottle Plotter](https://vgnotepad.blogspot.com/2024/04/bottle-plotter.html) – Blog post about building a cylindrical pen plotter for drawing on wine bottles.
+- [Buildlog.net Atari 1020 Plotter Retrofit](https://www.buildlog.net/blog/2019/10/inktober-project-2019-post-5/) – Blog post and video about converting an Atari 1020 plotter to use a ESP32-based GRBL controller.
+- [Texas Instruments HX-1000 Plotter Photos](http://www.hexbus.com/TI-99_4A_Home_Computer_Page/Hexbus_HX-1000_Printer_Plotter.html) – Photo gallery of the plotter's exterior, interior, and packaging.
 
 ## Manuals and Ephemera
 
@@ -220,7 +222,7 @@ Scanned plotter manuals and marketing ephemera, mostly from the [Internet Archiv
 Sorted alphabetically by company name and product name.
 
 - [Apple Color Plotter User's Manual](https://archive.org/details/AppleColorPlotter)
-- [Atari 1020 Color Printer Owner's Guide (1982)](https://archive.org/details/atari-1020-color-printer)
+- [Atari 1020 Color Printer Owner's Guide (1982)](https://archive.org/details/atari-1020-color-printer) – A higher-quality scan is also available as [a PDF on buildlog.net](https://www.buildlog.net/blog/wp-content/uploads/2019/09/atari-1020-color-printer-owners-guide.pdf)
 - [Atari 1020 Color Printer Field Service Manual (1983)](https://archive.org/details/atari1020colorprinterfieldservicemanualrev.011983atari)
 - [CalComp Artisan Plus 1023/1025/1026 User's Guide (1990)](https://archive.org/details/calcomp-artisan-plus-1023-1025-1026-users-guide)
 - [Programming CalComp Pen Plotters (1968)](https://archive.org/details/bitsavers_calcompProlottersJun68_2464236)