02:49 <souvlakeeb> Hey guys! Is it possible to increment a variable as in `var += 1` or `var++;`?

03:08 <souvlakeeb> Also, is there any way to have the exported PDF to scale?

03:21 <peepsalot> souvlakeeb: variables in openscad are immutable, so you can't assign a new value to the same variable.

03:23 <peepsalot> sometimes it may appear that you can reassign values, but in fact that is shadowing https://en.wikipedia.org/wiki/Variable_shadowing

03:23 <souvlakeeb> Okay thank you!

03:34 <InPhase> Well, except for loops...

03:35 <InPhase> But, left too soon!

04:05 <peepsalot> is it valid to consider for loops as another form of shadowing? each iteration of the loop kinda gets its own context, so is really "the same variable" or not? i guess its a matter of semantics?

04:06 <InPhase> If you "see it", then yeah.

04:06 <InPhase> But it's sort of a question of comfortable mental model.

16:03 <J1A84> turns out learning braille is easy  .. https://www.printables.com/model/240002-braille-learning

16:04 <Scopeuk> I suspect the pattern is easy, but actually training yourself to read the patter through touch as scanning and internally conceptualise that to language is going to take practice and probably lots od it

16:06 <J1A84> i am slow but can recognize the letters  -  not sure if blind read with multiple fingers in parallel .. that is some training for sure like speedreading

16:06 <teepee> it would be cool to see information collected about this topic on a dedicated page

16:07 <J1A84> i was amazed that after a few minutes you(i) will see the patten in your mind and you feel how many dots are there and where they are

16:08 <J1A84> teepee you mean wikipedia? or about the prints? ..  prusa can now search tags

16:08 <J1A84> https://www.printables.com/search/models?q=tag:braille

16:10 <teepee> I mean using OpenSCAD by and for vision impaired people

16:25 <J1A84> teepee a  assistech section for the gallerie would be an idea ..  like for the advent calendar Ü

16:26 <J1A84> https://en.wikipedia.org/wiki/Assistive_technology

16:29 <J1A84> with the new prusa search  https://www.printables.com/search/models?q=%22tag:assistivetech%20%2B%20openscad%22

16:29 <Scopeuk> Assistive tech is crazy expensive normally

16:30 <J1A84> we could get oscad results

16:30 <Scopeuk> granted sip and puff/mouth joysticks or eye tracking cameras are impressive

16:30 <Scopeuk> but mega money

16:30 <Scopeuk> my partner works with that sort of gear

16:34 <Scopeuk> interestingly the model J1A84 posted earlier for the alphabet appears to be using a couple of stacked squares to approximate the brail, that would be a much lighter implementation for rendering in openscad, I had considered it before but I've never worked with brail properly to know if it would feel right

16:34 <J1A84> it is a small target group so it doesn't get into the  cheap mass production range

16:36 <J1A84> Scopeuk  it is using an octagon at the top and a square at base  and is a polyhedron to render faster

16:36 <Scopeuk> the biggest thing helping that at the minute is that microsoft are making moves into that area with their hardware devision

16:36 <Scopeuk> the adaptive controller and hte upcomming mouse like stuff

16:38 <J1A84> the top octagon is .6mm and with a .4 nozzle  there is not much more to get out when printing

16:39 <J1A84> with arduinos micro you can emulate HID devices on USB connection

16:42 <J1A84> when batman needs a wheelchair https://outdoorextrememobility.com/wp-content/gallery/all-terrain-wheelchair/dsc00148.jpg

16:43 <Scopeuk> yeh I've done the hide emulation things, the seed studio xiao's are great for it, tiny usb c and cheap to do native whatever usb hid you want

16:47 <teepee> J1A84: yes, e.g. https://twitter.com/MakerMakeChange/status/1545096566708527104

16:49 <Scopeuk> https://mobile.twitter.com/gyrobotuk do a lot of prostehtic/accesibility stuff too

16:49 <Scopeuk> think it mostly lives in https://mobile.twitter.com/openbionics

16:50 <J1A84> i wonder why people using twitter for that .. it is not that accessible

16:52 <Scopeuk> YOU CAN PUT CONTENT IN MANY PLACES

16:53 <Scopeuk> excuse caps**

17:03 <J1A84> ah ok https://openbionics.com/ is a company  - thought it was a "movement"