@paulrickards@mastodon.social
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paulrickards

@paulrickards@mastodon.social

Artist exploring vintage plotters with modern code. Retrocomputing repair and collecting. Mixes the best of new and old. He/him #plottertwitter refugee #penplotter #c64 🏳️‍🌈

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billgoats, to random
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Anybody want a shiny sticker or five? I might have gone overboard with an order 😜

Round shiny stickers that say Live Laugh LocalTalk

paulrickards,
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@billgoats Absolutely!

paulrickards, (edited ) to RaspberryPi
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I’ve been rebuilding a installation that supports my classic Mac habit 😄

I used to use the awesome image which includes a ton of pre-configured software like . But it hasn’t been updated in a while so I used it as excuse to start from scratch.

I used this Pi Zero W as my starting point. HDMI video stopped working on it for unknown reasons. I added an Ethernet/USB hub hat and a 2 hat for devices.

paulrickards,
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One reason for rebuilding netatalk is I wanted to run TashRouter on the same machine. It’s doesn’t work right on the MacIPGW image because of the “split horizon” patch.

I can now freely use AppleTalk devices on EtherTalk, LocalTalk (PhoneNet!), and LToUDP (Mini VMac). This enables, for instance, printing to an ImageWriter II from my modern Mac running System 7.5 in Mini VMac! (There were lots of bugs to resolve to get the ImageWriter II working!)

paulrickards,
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One piece that's missing is AURP aka support. I'd like to avoid running a VM and have something more lightweight.

Luckily @DrJosh9000 has created jrouter which comes very close to accomplishing this! Remote zones are showing up but are all empty and not sure if my zone is visible outside. I need to play with some settings some more I think. But soooo close!

https://gitea.drjosh.dev/josh/jrouter

paulrickards,
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@eric Power efficiency is definitely a motivator for this project!

paulrickards,
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With netatalk, a TashTalk hat, TashRouter, and CUPS on the Raspberry Pi, we can do clever things like share a II printer over with an iPhone using AirPrint!

This screenshot was printed from my phone to the ImageWriter II.

Interestingly, this was just fixed in the latest netatalk 2.3.2!

paulrickards,
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@ecschwarz That’s possible as well with just CUPS! I did it years ago with an older version of MacOS X.

https://youtube.com/watch?v=gvpRIn10Mcw

paulrickards,
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@gaj Glad they’re back. I also hear that color printing to an ImageWriter II will be available soon.

paulrickards,
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@gaj They're available now!

https://maceffects.com/products/apple-imagewriter-ii-color-ribbon-cartridge

paradroyd, to random
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Raspberry Pi 5 + 1TB M.2 = new Nextcloud server.

Just need to add the active cooler.

A raspberry Pi 5 with a 1TB M.2 drive mounted in an M.2 hat. Green LED keyboard in the background.

paulrickards,
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@paradroyd That’s great, didn’t know those existed. Do you have a link to the hat?

paulrickards, to retrocomputing
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Recently got a new (to me) wide format plotter. But it’s weird— it’s not a ?!

It uses this new fangled technology called inkjet or something 🙃

Close up of the left side of a HP DesignJet 230 wide format inkjet plotter with the lid open. The cartridge is visible labeled “40”.

paulrickards,
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@ChartreuseK @ef1j Comes standard with 4MB of memory, but you can add additional 4, 8, 16, or 32MB with single 72 pin SIMM. I just added 16MB to it.

paulrickards,
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It looks like the HP DesignJet 230 is capable of raster printing as well. I see that a program for MacOS 9 was available from Microspot called MacPlot Raster. The version on Macintosh Garden isn’t registered so I’ve reached out to Microspot to see if it’s still available but it’s likely abandonware. Anyone have this?

paulrickards,
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CUPS and Gutenprint on a Raspberry Pi to the rescue! The built in HP DesignJet 230 driver supports raster types out of the box so now I can also print images. With its built in AirPrint ability, I printed this from my iPhone!

A completed print of a monochrome illustration of a person in a large room at a computer looking to the right at an open door with lots of giant floppies.

paulrickards, to retrocomputing
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The was made for designs like this! I love recreating the original logo specifications. This is just an approximate as the original didn’t have dimensions but love the way it looks.

The same pen plot on the plot stage of a vintage HP 7550Plus pen plotter with the lid open. The pen carousel is visible on the top right.

paulrickards,
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More logo specification plots. This time, the Aphex Twin logo by Paul Nicholson in 1991. After composing this, I realized the logo I had been using (found online ages ago) wasn’t exactly correct.

Plotted on a HP 7550 Plus.

The Aphex Twin logo, a stylized illustration of a capital A composed of arcs from several circles as if string were wrapped around. Guide lines accompany the illustration to show the construction. According to the designer Paul Nicholson, the logo has an alien vibe to it.

mejs, to random
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I can't wait to start this new project.

Inspired by @DosFox.

Boards courtesy of @paulrickards.

The beginning of an Apple Lisa.

paulrickards,
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@mejs Anything different happen if you swap the two VIAs around?

paulrickards,
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@mejs The two 6522’s on the IO board.

paulrickards,
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@mejs That’s interesting! I had swapped keys too, using a M0110A, but only two keys— T and Y. My fork “patched” that issue but I never resolved why it was happening.

https://github.com/warmech/m0110-to-lisa-keyboard-adapter/issues/1

I’ll test my M0110 keyboard later today and see what it does.

paulrickards,
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@mejs Using an M0110 keyboard on my rig doesn’t exhibit the same symptoms you’re seeing. But it does show a different one!

The bottom row of keys (Z, X, etc) is offset by one. Z is nothing, X shows a Z, C shows a X, and so forth.

T and Y are showing correctly, so at least the patch I made works for both of these keyboards.

Also, the lack of arrow keys is an issue for the ArduinoFile to select a drive image.

paulrickards,
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@mejs The top right values show CPU ROM version (left) and IO ROM version (right).

Version H for CPU is good. Version 5F or 8F isn't, It should say A8. Double check the contents of the EPROM at UA1. It should be this ROM (341-8003A): http://www.bitsavers.org/bits/Apple/Lisa/firmware/341-8003-A_f95908934da6460a67abc26c2f0d1553.BIN

paulrickards,
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@mejs Can you post a clear picture of your RAM card for me to see (front and back)? I'll compare what I see to mine.

paulrickards,
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@mejs What part are you using for G11? Is it a 74LS20?

I have a 74ALS20AN there. Looks like the ALS part is faster than LS. Could cause instability.

paulrickards,
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@mejs Are you able to use a 800k floppy image to boot into MacWorks?

paulrickards,
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@mejs Still suspicious that the IO ROM revision isn’t being display properly. It should say H/A8 at the top right. Unless that’s a symptom of something else.

paulrickards,
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@mejs There is a function that identifies the type of M0110 keyboard, including international types. Could it be just a mapping issue gone awry?

paulrickards,
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@mejs I struggled with the converter code myself, trying to figure out where to swap those two keys that were backwards for me. I had trouble following what was actually happening.

I forget, do the keys show up wrong in the serial test mode too?

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