[HN Gopher] Show HN: I built four eight-foot-long handwriting ro...
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       Show HN: I built four eight-foot-long handwriting robots
        
       Author : aarondf
       Score  : 88 points
       Date   : 2021-09-19 20:06 UTC (2 hours ago)
        
 (HTM) web link (twitter.com)
 (TXT) w3m dump (twitter.com)
        
       | anfractuosity wrote:
       | Very cool :) The results look really good!
       | 
       | It looks like the pen plotter has 3 degrees of freedom, I'm just
       | curious if you think adding any more would possibly have any
       | benefits?
       | 
       | I've got a very cheap robot arm, I plan to teach to draw
       | sometime, but I don't think it's going to work well, partially
       | because the lowest servos don't seem to have enough torque and I
       | don't think it's especially accurate/repeatable.
        
         | aarondf wrote:
         | Thanks!
         | 
         | It has ~2.5 degrees of freedom. The pen servo only controls the
         | _up_ part of the vertical axis, gravity controls the down. What
         | I mean to say is that the pen carriage just slides down, it is
         | not pulled down.
         | 
         | To solve for that we used... rubberbands. It adds a little
         | extra downward force to ensure the ink flows.
        
       | Animats wrote:
       | The Autopen AF is a commercial product for this.[1] There's also
       | MAXWriter and RealPen. All have paper feeders, so they can turn
       | out page after page, unattended.
       | 
       | In China, some kids use automatic writing machines to do their
       | homework.
       | 
       | [1] https://youtu.be/3FHGO2i0bL4
        
       | PedroBatista wrote:
       | Another week, another impressive technological display of amoral
       | mass-douchebaggery.
       | 
       | Even most crimes require a lot of work and many a fair amount of
       | technical prowess, but at the end of the day they are a severely
       | net-negative for society.
        
         | [deleted]
        
       | drKarl wrote:
       | Reminds me of the story of Turry
       | https://waitbutwhy.com/2015/01/artificial-intelligence-revol...
       | Long text, search for Turry
        
         | aarondf wrote:
         | Haha exactly right! I came across this WBW article when I was
         | building these guys and thought wait... Am I building Turry?
        
       | soheil wrote:
       | I think this is the most interesting video in the thread:
       | https://twitter.com/aarondfrancis/status/1438888791905865730
       | 
       | It'd be probably more realistic if it included random noise or
       | used a GAN model to generate a unique looking letter every time.
        
         | aarondf wrote:
         | Hey! Glad you liked that one.
         | 
         | So it does introduce random variation. I had the employee write
         | each letter ~15 times, and then they are plucked at random and
         | then more "wobble" is applied randomly. So each character is
         | slightly altered from what she wrote. Her original stroke
         | actually never shows up anywhere, which is kinda funny to think
         | about.
         | 
         | Letter spacing, word spacing, line spacing (y pos), line
         | starting point (xpos), and baseline drift are all random as
         | well.
         | 
         | I don't know how to write and or use a GAN model so I didn't.
         | Maybe next time!
        
       | ipsum2 wrote:
       | What were the letters for? Were conversion rates significantly
       | better than typed letters?
        
         | aarondf wrote:
         | In Texas, the county puts a value on your house that then
         | determines how much you pay in taxes.
         | 
         | Usually they just kinda eyeball it. The homeowner is allowed to
         | protest and say "hey that's super wrong, I protest!" It's a
         | pretty broken system tbh.
         | 
         | We are property tax agents that homeowners hire to do that
         | "protesting" process for them. _IF_ we save them money, we get
         | paid a percentage of the realized savings. If we save them
         | nothing, we get paid $0.00, so it 's a pretty compelling offer.
         | 
         | As for conversions, it's extremely hard to track because it's
         | physical mail. But yes, the campaign did quite well!
        
           | hellbannedguy wrote:
           | That is a weird way to tax property.
           | 
           | I still don't understand why you needed this autograph
           | pencil?
        
             | tinco wrote:
             | Is it? How do other states do it? Here in the Netherlands
             | it's the same, roughly judged based off average values in
             | the neighborhood.
        
               | hamaluik wrote:
               | Same in Canada.. always seemed fair enough to me and I
               | assumed it was standard but now I'm curious how many
               | other ways they are and how they shake out.
        
             | aarondf wrote:
             | It is, I agree.
             | 
             | We used them to write the addresses on the envelopes.
        
             | michaelt wrote:
             | _> I still don 't understand why you needed this autograph
             | pencil?_
             | 
             | To trick people into opening their junk mail, because they
             | think it's a letter from a human.
        
           | manquer wrote:
           | It shouldn't be that hard to track conversion rates?,
           | 
           | You could run A/B tests on randomized populations, to see
           | relative performance of conventional methods to yours,
           | keeping other factors like packaging, contents of the leter
           | same ?
           | 
           | You could even probably track basis demographic/ economic
           | groups given that you are tracking home value, you have both
           | property tax and location data with which to control for.
           | 
           | Whether you should do is a different question
        
           | felixr wrote:
           | I don't think you answered the questions: Why was handwriting
           | necessary? Are people more likely to read your mail if it has
           | a handwritten envelope?
           | 
           | My question would: Isn't it faster to just have some people
           | write the addresses per hand?
           | 
           | ... I would take "this is cooler" as an answer :-)
        
             | aarondf wrote:
             | > Are people more likely to read your mail if it has a
             | handwritten envelope?
             | 
             | That is the theory!
             | 
             | > My question would: Isn't it faster to just have some
             | people write the addresses per hand?
             | 
             | Undoubtedly, yes! Our plan was to try to make it a service
             | pre-covid, but then we decided to double down on our main
             | product (doing tax protests).
             | 
             | There are lots of services out there that do this, but
             | mostly they do low volume, high cost stuff
             | 
             | - https://www.handwrytten.com/
             | 
             | - https://www.scribeless.co/
             | 
             | - https://roboquill.io/
             | 
             | - https://handwrittenmail.com/
             | 
             | - https://letterfriend.com/
             | 
             | Lots of stuff like thank you notes, etc. We just wanted the
             | addresses on the outside!
        
       | kragen wrote:
       | It's a _literal_ spambot. While a handwriting robot is
       | potentially wonderful (I 'm a particular fan of Jaquet-Droz's
       | automaton the _Writer_ , finished in 01774, which is probably the
       | first programmable pen plotter, containing perhaps the second
       | vector font after the _Romain du Roi_ ), that's horrible. This is
       | why we can't have nice things: stacked on the crooked timber of
       | humanity, the best inventions are immediately turned to the
       | worst, most contemptible ends.
       | 
       |  _Moloch! Solitude! Filth! Ugliness! Ashcans and unobtainable
       | dollars! Children screaming under the stairways! Boys sobbing in
       | armies! Old men weeping in the parks!_
       | 
       | aarondf explains below
       | <https://news.ycombinator.com/item?id=28588086> that this was not
       | built, as you might think, for marketing; instead, it is being
       | used as a denial-of-service attack on a government property-tax
       | dispute-resolution mechanism, crowding out unaugmented humans:
       | 
       | > _We are property tax agents that homeowners hire to do that
       | "protesting" process for them. IF we save them money, we get paid
       | a percentage of the realized savings. If we save them nothing, we
       | get paid $0.00, so it's a pretty compelling offer._
       | 
       | So, to elaborate:
       | 
       |  _who were burned alive in their innocent flannel suits on
       | Madison Avenue amid blasts of leaden verse & the tanked-up
       | clatter of the iron regiments of fashion & the nitroglycerine
       | shrieks of the fairies of advertising & the mustard gas of
       | sinister intelligent editors, or were run down by the drunken
       | taxicabs of Absolute Reality,_ ...
       | 
       |  _Moloch! Moloch! Robot apartments! invisible suburbs! skeleton
       | treasuries! blind capitals! demonic industries! spectral nations!
       | invincible madhouses! granite cocks! monstrous bombs!_
       | 
       |  _They broke their backs lifting Moloch to Heaven! Pavements,
       | trees, radios, tons! lifting the city to Heaven which exists and
       | is everywhere about us!_
       | 
       | - https://www.poetryfoundation.org/poems/49303/howl
       | 
       |  _... all these scenarios are in fact a race to the bottom. Once
       | one agent learns how to become more competitive by sacrificing a
       | common value, all its competitors must also sacrifice that value
       | or be outcompeted and replaced by the less scrupulous. Therefore,
       | the system is likely to end up with everyone once again equally
       | competitive, but the sacrificed value is gone forever. From a
       | god's-eye-view, the competitors know they will all be worse off
       | if they defect, but from within the system, given insufficient
       | coordination it's impossible to avoid._
       | 
       | - https://slatestarcodex.com/2014/07/30/meditations-on-moloch/
       | 
       | In this case, the value being sacrificed is that if you write a
       | letter to the government disputing your tax assessment, you get a
       | fair hearing.
       | 
       | What kinds of socially imposed incentives would be adequate to
       | dissuade people from doing things like this?
       | 
       |  _Moloch whose mind is pure machinery! Moloch whose blood is
       | running money! Moloch whose fingers are ten armies! Moloch whose
       | breast is a cannibal dynamo! Moloch whose ear is a smoking tomb!_
        
         | [deleted]
        
       | varjag wrote:
       | Not sure how I feel about automating those last bits of human
       | touch.
        
         | mypalmike wrote:
         | You don't love getting envelopes in the mail that appear hand
         | written but turn out to be mass produced promotional garbage?
        
       | gus_massa wrote:
       | In the initial model the pen is slanted but parallel to the axis
       | of the sheet, and in the last model it's vertical. Does this
       | change the style of the writing? I think I hold the pen like
       | rotated at 45deg. What about that? Have you tried with a ink pen?
       | 
       | What's the difference with an off the shelve pen plotter?
        
         | aarondf wrote:
         | Holding it at 45 works well for e.g. a sharpie, but it didn't
         | work quite as well for a ball point pen, which we ended up
         | using.
         | 
         | We tried a bunch of different pens and eventually ended up on
         | G2 for reliability and "rollability," if thats a thing. Way
         | fewer dead spots than some of the other pens. Also, we could
         | see remaining ink and swap out early.
         | 
         | > What's the difference with an off the shelve pen plotter?
         | 
         | It's bigger!
         | 
         | Seriously though, this _was_ an off the shelf pen plotter
         | (Axidraw) until I blew up one of the axes. So it 's the same
         | controller, same motors, same pen carriage, and one of the same
         | arms. We simply took one axes and made it super long.
        
           | aarondf wrote:
           | The off-the-shelf plotter is called Axidraw, by Evil Mad
           | Scientist: https://shop.evilmadscientist.com/890
        
       | endisneigh wrote:
       | Though this is technically impressive, the continued pretending
       | of "personalization" is pretty disgusting to me.
       | 
       | Why not just be explicit that it's automated? Because people
       | don't like that. So we automate anyway and pretend. It's just
       | sad.
       | 
       | Reminds me of the deep-fakes that are becoming popular that allow
       | you to "personalize" video messages. I'm curious of OP had any
       | moral qualms about deceiving people, and I ask this with complete
       | sincerity and with no desire to downplay the (technical)
       | impressiveness of the project.
       | 
       | ---
       | 
       | Those comments aside, and in the interest of having a more
       | productive, positive comment - I'll say that if the machine
       | described could be miniaturized sufficiently - it, combined with
       | some deep learning could be nice for those who are losing the
       | ability to properly write.
        
         | [deleted]
        
         | aarondf wrote:
         | > I'm curious of OP had any moral qualms about deceiving
         | people, and I ask this with complete sincerity and with no
         | desire to downplay the (technical) impressiveness of the
         | project.
         | 
         | Hey! OP here. Great question.
         | 
         | So I think one piece of context that's missing from all of this
         | is that our service 1) helps people and 2) can never cost them
         | net-negative.
         | 
         | Our service is a property tax protest firm, where we represent
         | homeowners in an effort to reduce their home's "appraised
         | value," and thereby lower their taxes.
         | 
         | If we succeed, we take a percentage of the _realized_ savings
         | to the homeowner, and leave them with the lion 's share. If we
         | fail, they don't pay us anything. There are lots of firms that
         | charge flat fees regardless of success. Those are the bads guys
         | in our eyes.
         | 
         | I look at the handwriting as way to optimize open rates, just
         | like writing a good subject line. I know that emails that say
         | "Hey Aaron!" weren't written one-by-one by a well-meaning
         | intern. Likewise I assume _anything_ I get in the mail is junk.
         | We just want people to look at ours and think "oh wow they put
         | some effort into this piece of junk mail." (We don't think
         | we're junk mail, obviously.)
         | 
         | Anyone that uses our service will either make money, or they'll
         | be left in the same spot they were before.
         | 
         | So I feel pretty great about that!
         | 
         | > I'll say that if the machine described could be miniaturized
         | sufficiently
         | 
         | It started out mini! You can find it here:
         | https://shop.evilmadscientist.com/productsmenu/846
        
           | everyone wrote:
           | TLDR. OP had absolutely no moral qualms about deceiving
           | people.
        
           | IkmoIkmo wrote:
           | Yes it'll be helpful for you and your clients, until everyone
           | does it, at which point hand-written becomes meaningless. At
           | that point it's both no longer helpful for you to drive
           | commercial results, but also it means anyone who wasn't using
           | it in a commercial way, will now have lost the signalling
           | power of handwriting because the reader can no longer
           | differentiate between someone writing a handwritten letter,
           | and someone sending a digital letter through a handwriting
           | middleman service.
           | 
           | In other words, a bit of a race to the bottom.
           | 
           | As for your appraisal company, I'm not familiar with it. I am
           | familiar with the Dutch appraisal companies, which spam the
           | shit out of municipalities with automated legal objection
           | letters, overwhelming the paralegal capacity, and they make
           | money off of a combination of upfront legal fees (paid not by
           | the homeowner, but by the municipality, as 'everyone deserves
           | access to the law' here) and savings on the property taxes.
           | It's really approaching spam and has blackmail elements, as
           | if the municipality doesn't respond within a legal timelimit,
           | there can be fines or moneys awarded on-top.
           | 
           | All of this is great for the individual owners who use the
           | service, but terrible for the municipality and thereby for
           | society. After all, the municipality is now doing a lot of
           | unnecessary work responding to automated and entirely free
           | (spamlike) appraisal objections. Of course the municipality's
           | budget is paid for by the tax payers. So everyone is in the
           | end paying for this nonsense, in the form of higher tax
           | rates.
           | 
           | Not only that, but in the Netherlands it's lead to a system
           | where the appraisal values are severely distorted downwards,
           | and compensated with higher property taxes. Instead of taxing
           | 1% of $1 million market value, they'll simply appraise it at
           | $600k and set the property tax at 1.6666%. Nobody can
           | reasonably argue the $1m home is worth less than $600k, so
           | the municipality is freed from these appraisal spam
           | companies, and is still raking in the same tax revenue. But
           | these unnaturally low appraisals are distorting other things
           | (e.g. the national wealth taxes which are based on these
           | undervalued municipal appraisals) and it's all not pretty.
           | 
           | None of this is good for society and I'm pretty disappointed
           | that we're now seeing tech move further into the field of
           | spam, even in a physical sense.
        
           | manquer wrote:
           | Customers ( homeowners?) having a potentially risk free/ no
           | downside transaction shouldn't have any relationship to
           | whether they are interested in unsolicited mail or should
           | receive one.
           | 
           | It is a ultimately zero sum game I would think, if this
           | improves your open rate in the short term, everyone from
           | political campaigns to the local deli, will start doing the
           | same and everyone would stop opening hand written mails, and
           | yours(and everyone's) open rate will be back to the same, and
           | we will no longer be able to open by grandmother's Christmas
           | cards .
        
             | aarondf wrote:
             | > everyone from political campaigns to the local deli, will
             | start doing the same
             | 
             | It is definitely a matter of time until this stops working.
             | From a quick google of "handwritten letters" here's what I
             | got:
             | 
             | * https://www.handwrytten.com/
             | 
             | * https://www.scribeless.co/
             | 
             | * https://roboquill.io/
             | 
             | * https://handwrittenmail.com/
             | 
             | * https://letterfriend.com/
        
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