[Arm-netbook] mendel90 3d printer arrived

[Luke Kenneth Casson Leighton]

also the mendel 90 kit arrived last week, i am about 20% through a
build, it is... challenging shall we say: around 200 nuts/bolts/screws
which i really wasn't expecting! i'll likely be done by end of this
week and can start experimenting.
l.

[joem]

Post by Luke Kenneth Casson Leighton
also the mendel 90 kit arrived last week, i am about 20% through a
build, it is... challenging shall we say: around 200 nuts/bolts/screws
which i really wasn't expecting! i'll likely be done by end of this
week and can start experimenting.

If you do 3D modelling in scripted parametric openscad,
I'm in with whatever is doable to help.
Maths, formulas, etc, and anything that can be
done up xmaxima + surfaces that can be done in K3DSurf
surface generator, doing test prints etc.

[Luke Kenneth Casson Leighton]

Post by joem

Post by Luke Kenneth Casson Leighton
also the mendel 90 kit arrived last week, i am about 20% through a
build, it is... challenging shall we say: around 200 nuts/bolts/screws
which i really wasn't expecting! i'll likely be done by end of this
week and can start experimenting.

If you do 3D modelling in scripted parametric openscad,
I'm in with whatever is doable to help.

i'm using pyopenscad, it auto-generates openscad files based on
python classes: it is as weeird as the openscad language :)

Post by joem
Maths, formulas, etc, and anything that can be
done up xmaxima + surfaces that can be done in K3DSurf
surface generator, doing test prints etc.

okay! cool, i'd not heard of k3dsurf. awesome.

ta joe.

[joem]

Post by Luke Kenneth Casson Leighton

Post by joem

Post by Luke Kenneth Casson Leighton
also the mendel 90 kit arrived last week, i am about 20% through a
build, it is... challenging shall we say: around 200 nuts/bolts/screws
which i really wasn't expecting! i'll likely be done by end of this
week and can start experimenting.

If you do 3D modelling in scripted parametric openscad,
I'm in with whatever is doable to help.

i'm using pyopenscad, it auto-generates openscad files based on
python classes: it is as weeird as the openscad language :)

Post by joem
Maths, formulas, etc, and anything that can be
done up xmaxima + surfaces that can be done in K3DSurf
surface generator, doing test prints etc.

okay! cool, i'd not heard of k3dsurf. awesome.
ta joe.

pyopenscad i believe is used to script up complex functions
to generate objects surfaces because openscad is relatively simple
language and doesn't have the giant features of python.
Openscad is evolving - the latest version does tapered screw spirals. I
made a tapered screw chuck type thing that is 1 inch and
so strong it can take a spanner to tighten it and thread don't break.
Unlike nylon screws. And this thing is done in PLA :( !

Anyway lots of designs released in openscad at thingiverse.
Search for parametric designs - reduce chance of re-inventing wheel.

[Luke Kenneth Casson Leighton]

Post by joem

Post by Luke Kenneth Casson Leighton

Post by joem

Post by Luke Kenneth Casson Leighton
also the mendel 90 kit arrived last week, i am about 20% through a
build, it is... challenging shall we say: around 200 nuts/bolts/screws
which i really wasn't expecting! i'll likely be done by end of this
week and can start experimenting.

If you do 3D modelling in scripted parametric openscad,
I'm in with whatever is doable to help.

i'm using pyopenscad, it auto-generates openscad files based on
python classes: it is as weeird as the openscad language :)

Post by joem
Maths, formulas, etc, and anything that can be
done up xmaxima + surfaces that can be done in K3DSurf
surface generator, doing test prints etc.

okay! cool, i'd not heard of k3dsurf. awesome.
ta joe.

pyopenscad i believe is used to script up complex functions
to generate objects surfaces because openscad is relatively simple
language and doesn't have the giant features of python.

relatively simple... still incredibly awkward to understand: it's the
"container" notation. which way round should it go? what should
contain what? should an object be added to a union or a union added to
an object?

also the language is not NP-complete so is, by definition, extremely
limited for doing anything beyond what the designers of the language
envisioned - and therefore forced onto its users - what it should be
used for.

so the fact that the openscad language has a special feature for
doing parametric screws has me alarmed, _not_ impressed. what's next
to be added? what special extra feature? now fast-forward a decade
and now the "relatively simple language" has become something that
should be avoided at all costs.

Post by joem
Anyway lots of designs released in openscad at thingiverse.
Search for parametric designs - reduce chance of re-inventing wheel.

do they have 3D spine surfaces yet, where the surface may be specified
by a 2D array of 3D points and the intermediary points created to a required
level of detail using bezier splines?

the answer should be *no* because it is a slippery slope to add such
functionality to the base language.

l.