<arossdotme>
off topic: i have a 4.3 inch compersite input lcd thats pwoered off 12v. it's a recent one that has a ultr compacte pcb but it does have points to solder wires too like a 3.3v one to power it. i have checked the power chicp and it outputs 3.3~V. anyway so i tried powering it via 3.3V but it switches on and off. the picture is displayed and litgh up for less then 1sec and then off and on, it repeats.
<arossdotme>
theres a rpi forum thread about these mods but theres no anwser for this pcb. on prev mods they remove the pwr IC and someone removed a inductor and i think a cap. looking at the cirect diagram it looks like i also want to remove/cut some restors as well.
<arossdotme>
I don't really want to make this mod as i'ld like to be able to pwer it from 12v still
<arossdotme>
and to not risk damaerging it
<arossdotme>
/ cockup
<arossdotme>
but i would love to run it off a smaller batt pack
<arossdotme>
smaller and lighter!
<arossdotme>
the wieght is killing me
<arossdotme>
it works of a min of 6V. maybe theres a not to bad dc-dc that bosts the voltage upto 6V?
<arossdotme>
of=at
<arossdotme>
so i could use some old li-ion batts
<arossdotme>
this is for my diy camera rig
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<whitequark>
appears to be a really, really nice parametric 3D CAD
<whitequark>
they only ship windows binaries for some obscure reason, but you can build it yourself from https://github.com/rlutz/solvespace. autoconf as usual
<whitequark>
GPL3
<whitequark>
and unlike freecad it actually works very well
<whitequark>
a nice part is that it can also solve constraints in 3D
<viric>
hm I remember this thing
<viric>
the video is quite impressive.
<whitequark>
i don't know how i haven't seen it earlier
<whitequark>
it looks absolutely amazing
<viric>
did you build it?
<whitequark>
i ran it under virtualbox :]
<whitequark>
after that i discovered that it's actually FOSS
<viric>
I remember as if I couln't build it for linu
<viric>
x
<viric>
maybe two years ago
<whitequark>
yes that should be fixed in the repo
<whitequark>
there's a recent forum thread about that
<viric>
ok
<viric>
ah we have it in nixpkgs
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<viric>
whitequark: I tried to draw an object and I failed to constrain it. :)
<whitequark>
hmm?
<viric>
this is, I failed to draw it
<viric>
I needed some centering for symmetry, and I couldn't achieve it.
<whitequark>
hmm
<whitequark>
got a pic?
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<wpwrak>
whitequark: looks interesting. i wonder if they support also variables, maybe even expressions, not just constants ?
<viric>
90+45 works
<viric>
:)
<viric>
the UI is quite that of a videogame. :)
<whitequark>
wpwrak: no, not really
<whitequark>
but.
<whitequark>
the code is quite readable
<whitequark>
and unlike freecad with the horror that is opencascade, it's easily maintainable.
<whitequark>
rendering on linux seems broken, somehow
<wpwrak>
what's horrible about opencascade ? at least on freecad the primitives i access in scripts are at an appropriate level of abstraction, underneath it all is opencascade
<wpwrak>
and the really important thing is that opencascade actually works for "ideal" geometries :) unlike, say, cgal
<whitequark>
wpwrak: the sheer amount of it
<wpwrak>
(ideal = without taking into account numerical effects and such)
<whitequark>
i looked into writing something for opencascade and the cost/benefit ratio is close to infinity
<whitequark>
they seem to have swapped the normals, or something
<whitequark>
weird bug
<whitequark>
also, no antialiasing on linux, ugh
<whitequark>
wpwrak: solvespace uses NURBS curves, as I understand
<whitequark>
which can represent a circle
<wpwrak>
whitequark: i mean things like operations on volumes producing sensible results. e.g., subtracting things with conincident surfaces will not leave super-thin layers (or worse) behind. or merging solids with coincident surfaces won't have some tiny empty space between them.
<wpwrak>
opencascade is really good at doing such thing right
<whitequark>
ahh
<whitequark>
solvespace doesn't have this issue, because all unions or subtractions must be constructed on a workplane on top of another solid
<whitequark>
so if something is coincident, it already knows it perfectly
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