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Re:Pen plotters: not just output devices (2016) by AlexanderDhoore on Saturday May 01, 2021 @02:13PM (#27008459)
To this day HP still sells "plotters". They are just mostly used for cutting but you can definitely put a pen in there. And they have an optical eye to read markers on the printed media.

See HP Latex cutter: https://www8.hp.com/us/en/printers/large-format/latex-plus-c...

EDIT Oh, and they still speak HP-GL!

Re:Pen plotters: not just output devices (2016) by scruss on Saturday May 01, 2021 @02:39PM (#27008640)
You can still make many HP and compatible laser printers speak HP-GL (well, HP-GL/2) through some arcane PJL commands.

Fun fact: HP-GL is equally compatible with metric and US customary measure as it uses 1/40 mm as its base unit. This just happens to be 1/1016 inches: not a tremendously useful integer factor, but every bit of integer goodness mattered back when peripherals were 8-bit.

Re:Pen plotters: not just output devices (2016) by rbanffy on Saturday May 01, 2021 @03:32PM (#27009114)
> Fun fact: HP-GL is equally compatible with metric and US customary measure as it uses 1/40 mm as its base unit. This just happens to be 1/1016 inches

That’s a brilliant hack.

Re:Pen plotters: not just output devices (2016) by Gibbon1 on Sunday May 02, 2021 @02:19AM (#27012762)
Reminds me of a high precision delta-sigma ADC I saw that had nulls at 60 and 50 HZ.
Re:Pen plotters: not just output devices (2016) by emmelaich on Sunday May 02, 2021 @01:02AM (#27012492)
> This just happens to be

The inch is defined as 2.54 cm, since 1959. You might know this, just thought I'd add this note.

Re:Pen plotters: not just output devices (2016) by scruss on Wednesday May 05, 2021 @04:42PM (#27055506)
and you guys finally got rid of the US survey foot - the bane of this Canadian's existence when working on big civil jobs in the states. We'll get you guys using proper units afore long
Re:Pen plotters: not just output devices (2016) by brtkdotse on Saturday May 01, 2021 @04:32PM (#27009565)
The HP Latex cutter is a rebranded Summa cutter. AFAIK HP doesn’t produce plotters/cutters anymore, they do however produce large format printers (which operate on a totally different paradigm)
Re:Pen plotters: not just output devices (2016) by AlexanderDhoore on Sunday May 02, 2021 @04:27AM (#27013341)
Note how I said "sells" ;)
Re:Pen plotters: not just output devices (2016) by brtkdotse on Monday May 03, 2021 @03:10AM (#27022419)
Oops, you’re right! :)