Then you’ll have to apply it and update your initrd:
sudo su
cd
wget http://ftp.o2s.ch/pub/patches/mkinitrd/crypto_root_luks_mkinitrd.patch
cd /
patch -p0 < /root/crypto_root_luks_mkinitrd.patch
mkinitrd -d /dev/mapper/root -f "udev dm storage luks lvm2" -m usb_storage
Next you add the new default boot parameters for grub in /etc/default/grub
In order to do so open the file and look for GRUB_CMDLINE_LINUX_DEFAULT
add the following variables in order to unlock your root partition at bootup
luks_root_keydev=UUID=?? luks_root_keyfile=?? luks_root=UUID=?? luks=root
(replace the ?? by values which fit your setup)
Howdy how:
Just now I got okular to recognize pinch zoom gesture (two finger zooming) after I packaged Christian Spielberger’s Qt4.8 branch with Xinput2.2 support and patches okular a little bit.
Under Tegra it’s still a bit laggy, but I guess that’s some rendering issue.
Have a look at: https://build.opensuse.org/project/show?project=home%3Aleviathanch%3AMultitouch
Of course you may feel free to convert my packages into Debian/ArchLinux/what ever. ones in order to spread this functionality onto other distros.
RootFS-images will follow
We now fixed the extruder and now we’re happily printing again.
And soon I’ll change over to build my own White-Juday warp interferometer.
Maybe I can tinker myself together an LCARS interface with Qt4. Would have style ^^
Explanation:
The extruder from Wolfgang is translating many steps into a few powerful ones by using gears.
The problem is that the small gear on the motor’s shaft is only fixed by a small  headless screw
which becomes loose after a while.
This just happened during a very complicated print, which of course went wrong because of it.
Also because I’m not possessing my own set of compatible screw drivers for this kind of screw
I’ll have to wait until my colleague who has this kind of equipment has finished his last exam tomorrow.
Just when it started to be fun printing things… I really have to work on my Karma as it seems.
Now my RepRap really qualifies itself as “self replicating” from which the Rep in RepRap comes from. (Self replicating rapid prototyper)
It just printed spare parts for itself.
Yepee 😀
Today I tried to print thing 27405 from thingiverse (http://www.thingiverse.com/thing:27405) on the PrusaMendel in the CCCZH lab.
The result is shown in the provided image.
After some tweaking of temperatures and speed I finally managed to make it print perfectly!
While bigger objects still are producing some strings when it’s going to the end, smaller objects are printing fine now.
Turning the temperature to 190°C for the first layer and 185°C for all the other layers, and also reducing the extruder multiplier down to 1.0 made all problems go away. Finally!
Now I just have to figure out how to make Slic3r in ReplicatorG do support material.
I actually wasn’t sure if the RepRap wasn’t gonna burn like hell while being left alone printing in the hackerspace but it made it’s job well and printed the whole Hilbert-Knot without any incident.
During my trip to the hackerspace I already had nightmare imaginations of what might have happened to the machine.
I was quite delighted to find out that none of them had happened.
On the contrary: I now even have figured out the optimum feedrates needed to print overhanging objects which are enough dense.
I think I’ll try to print a rainbow dash soon.
Since I’m already thinking about some new tinkering projects for the post
RepRap era I stumbled upon the following nice experiment.
Since the linearization of Einstein’s space-time-metrics depends on the assumption that the distortions are quite small,
there went up criticism from certain members from the CCC, like Raoul, that such equations could never be used in order
to describe something as a rotating niobium ring (Like in this experiment).
The measurements taken seem to support Raoul’s argumentation.
Being a factor 20 off the calculations shows us wonderfully that assuming a non-linear system to be linear
only works when the numbers you’re crunching aren’t that big, otherwise you miss some values…
But remarkably: The measured values were 20 times bigger then predicted, which means,
that you can actually get more power out of the system then you’d expected.
Which means, these measurements mean: The idea of antigravity isn’t as brain damaged as some may think…
Only: the problem is now the same as it is with the electric rockets…
What’s moving an electron within an B-field, it’s the Lorentz force, but this one is damn weak.
And also the Lorentz force doesn’t actually move an electron into an opposite direction,
it usually just pushes it a little in it’s already existing trajectory…
Same for the gravito magnetic Lorentz force.
Seems as the laws of physics will still stay a bitch for a while.
But the experiment is still a cool idea, or as General Hammond would say: “Spinning is so much cooler than not spinning”
Howdy
During my cleanup of comments I found some of them actually NOT to be SPAM but actually relevant questions which I had overlooked before.
For the future: If you’ve got some technical questions, please contact me under the contact informations I added on the “contact” page 🙂
I actually wasn’t sure if the RepRap wasn’t gonna burn like hell while being left alone printing in the hackerspace but it made it’s job well and printed the whole Hilbert-Knot without any incident.