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Joined 2Y ago
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Cake day: Jun 17, 2023

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Written letters and phonecalls on the weekend when the long distance rate was cheaper.


This is for colour printers for sure, to prevent counterfitting. Many black and white only didn’t have fingerprinting, previously anyway. The printers serial number and manufacturer is coded. They don’t need to change anything, its done by the printer (serial, Mac, model)


This is not why printers are terrible. Printers are terrible because they don’t follow a standard protocol.


Well you are in luck. No video but images of analysis. Hedgehog plot of normal vectors, they converge to flat at stem base. Hard to see since the stem/dimple share space.

Confirmation of immediate angle at stem base

Slope plot. Green being 0 degrees from up vector.

Dimple hole showing its not a cylindrical stem

Stem slope, green being immediate 0 vector


I’m on a trip so won’t have access to my CAD analysis tools, so no video I’m afraid.


No you weren’t. That will be £5


Doesn’t matter, the point where stem and dimple are deepest and encapsulated would have same vector direction initially. Topology doesn’t need to be cylindrical to have vectors


At the deepest part where it surrounds stem tightly there will be an instant tangent which then immediately becomes non tangent. A G0 and G1 condition and not G2


Incidental Tangent to the surface where the stem starts.


No all good, they look amazing. I think my Grandparents may have had an Olivetti… It looks so familiar.


Same here, I saw one picture of the IBM that looked like it could have bumps, but the pixelation also meant it could just be reflections due to the convex shape. Also if you have old typewriters, its a faux pas not to share pictures LOL


Use an email relay, and don’t enter many personal details. While this stuff is invisible to general users, marketers can purchase a paid linked in that allows gleaning that data and making call lists, so it will have your name, email, phone number, job description etc. This is fine if you hope somebody calls you for a job, but it also gets in the wrong hands and you get spam on your phone and email


Totally unsure if this is accurate, but chatgpt is 100% confident LOL. Brand/Model Approximate Introduction Year Homing Nubs on F and J Keys IBM Selectric 1961 Yes Royal Quiet Deluxe 1939 Yes Hermes 3000 1958 Yes Olivetti Lettera 22 1950 Yes Underwood Standard 1929 Yes

Couldn’t find images showing these. Looks like on computers their is info about it starting in 83


Chatgpt says 1950s. But who knows if that is accurate



Hows your backpain? You must be going way back on equipment. Everything I have had from 85 on has had a dimple or raised dash.


Yes for sure, a farmer or artisan dealing in smaller volume knows their costs, and will deal for bulk buy etc. Modern corporate sellers know their fixed cost of procurement, warehousing, profit required, and logistics costs, so the price is the price…unless you can deal at the upper corp level for huge buys


Some people don’t quite get pricing and that they seem to want to hang onto their junk (they are selling) rather than let it go for a reasonable price.

One guy had a B/G router on Craigslist for the price of a new AC/X router. I sent a helpful message “hey these sell for $5 because they are obsolete, at your price nobody will buy that except a grandma that knows nothing about WiFi.”

He replied with a tirade of nasty insults, that I ignored. Few days later he emails against asking if I want it for $10.

I replied that I don’t want it , it is obsolete, I was trying to help so you don’t sit on it without a sale. And he replied with more swearing and insults.

3 months later I see it still for sale, and still too high. So I could not resist a little “I told you so” message.


Well this explain my vietnamese neighbour’s behaviour, she’s always complaining about store prices and trying to get stuff discounted. Her day is made if something was on sale, even if it wasn’t something she needed. It feels like a win for her


Our typing class in high school was this teacher spouting nonsense letter combos and us following those dqyvafter day until we had covered home row , upper and lower, then moving onto coping sentences. Reptitiion works. Find your home row dimples on the key board then today is fjf fjf fjf fjf fjf fjf, tomorrow is another