VBoxManage modifyvm "VM name" --natpf1 "to_ssh,tcp,,22,<GUEST IP>,22"
VBoxManage modifyvm "VM name" --natpf1 "to_http,tcp,,80,<GUEST IP>,80"
VBoxManage modifyvm "VM name" --natpf1 "to_https,tcp,,443,<GUEST IP>,443"

Replace “VM name” and <GUEST IP> with your desired configuration. If your guest OS use DHCP then can be omitted. natpf1 stands is the network interface to use. In my case NAT is Network Adapter 1.

To remove them again:

VBoxManage modifyvm "VM name" --natpf1 delete "to_ssh"

‘VBoxManage’ should be installed on your host os by the VirtualBox installer.

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setFilter()

didn’t worked out, because it seems that you can’t set a filter for a different module.
So I analysed the user settings ( see “debug bar”) and came up with this solution:

$this->getUser()->setAttribute('myOldModule.filters', array('filter_att' => array('text' => intval($request->getParameter('id')))), 'admin_module');
$this->forward('myOldModule', 'index');

“myOldModule” = Model Name of backend module.

“filter_att” = The name of the model column you want to filter.

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today I have some time and I’ll try to write about my UM experience.
So you could ask, what’s an Ultimaker?

In my opinion it’s one of the greatest things that has arised from the open source community. A 3D printer.
If you want to read more about the history of the community I advice you to read this. Without the initial development of the RepRap community this would not have been possible. In this spirit: “Thanks you sooooo much, all of you are awesome”.

So here’s my short history with 3D printers.
I got to know these things about 2 to 3 years ago when the first people wrote about the development.
At this time I did plan to build one on my own. This thought was rejected by myself after I read about, what parts are needed and how this whole thing can be assembled.
I didn’t believed that I can do it without spending months of research for the parts, assembling and tuning. So for the next 3 years I almost forgot about this great technology.

When 2011 was running out I first read about the MakerBot community and got a first view a thingverse.
I was blown away about the scope and wide range of great things that other people already created.
2 weeks of surfing across hundreds of sites, comparing different models and checking my budget my decision was clear. I ‘ll buy an Ultimaker. So I placed the order on 12th of december and after the order was processed through a payment provider the great waiting started
Estimated shipping time is 4-6 weeks. On the 31st of january the mail that made my day arrived.
Subject: ‘Order Update’, Content: ‘Preparing shipment’
On 3rd feburary the package was delivered. Unfortunately I wasn’t at home so I had to call the service and arrange a new delivery date. Tomorrow will be the day!

So the day came and I was so happy when the door bell rang.

Finally it was there, and I couldn’t wait to start assembling.
The following pictures show the progress in building the UM.
Step 1: Unpacking

Step 2: Starting to build the frame

first fun

mounting the endstops

and there's the case

Starting to mount the motors:

Day one was over and I slept well.
The next day I didn’t made that much pictures.

The extruder head, this really was the hardest part.

nearly finish

It's done!!!!! The only thing missing in this pic is the filament spool on the backside.

So it was 01:12 after midnight and I had a great feeling. I coudn’t wait to do my first print and here it is.

My first print ever!

You see the first print was far from perfect but it showed me that I assembled it the right way.
Happy to see this tiny cube, I went to bed. The next day was for calibrating and tuning it.

After a week of calibration and tuning I was happy to print my first yoda head,

My calibration test

and a whistle,

and a better case for the fan A month has gone by and I printed a lot of fun stuff but also lost a lot of prints due to problems.

The um wiki says you’ll need 6 to 20 hours to build it. I did it in about 16,5 hours. Here’s my timeline for the build:

1. Unpacking and Checking all stuff = 0.5h
2. Frame = 3h
3. X-Y Motors = 1.5h
4. X-Y Axis = 3h
5. Extrusion head = 4.5h
6. Z-stage = 2h
7. Material feed mechanism = 1h
8. Mounting the electronics = 1h

Total: 16,5 hours

All in all it was fun to build it given the assembly instructions in the wiki. The assembly descriptions are straight forward and easy to understand. The description about how to level you z-axis should be described more since it’s the most important part for getting great first layers.

In the next days I’ll plan write another post covering:

- Problems while building and calibrating the um.
- What I found out to be the best software toolchain for me when preprocessing/printing objects.
- My fav. software for creating 3D objects.

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apt-get install pdfsam

On my OS X I dowloaded the .dmg from www.pdfsam.org and created this tiny ‘alias’ in my ~/.profile.

alias pdfsam='java -Dlog4j.configuration=console-log4j.xml \ 
-classpath /Applications/pdfsam-2.2.1.app/Contents/Resources\ 
/Java/pdfsam-2.2.1.jar org.pdfsam.console.ConsoleClient "$@"'

On command line I can now use it like I use it on Linux.

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I have a mysql table which contains the filenames located on my hard drive.
Now I created a little script which processes a single file in under 3 seconds. Unfortunately for 10.000+ files this would take more than 8 hours.

So what if I could run them in parallel with a maximum of 10 parallel task’s being executed? This would really speed up the computation!

Luckily in 2005 Ole Tange from GNU merged the command line tools xxargs and parallel into the a single tool ‘parallel‘.
With this great tool there is no need to write any complicated script to accomplish such tasks.
First you need to install it using homebrew.

brew install parallel

After that i had to add the path to my .profile

PATH=$PATH:/usr/local/Cellar/parallel/20110822/bin

Here’s the basic usage:

 $> echo -ne "1\n2\n3\n" | parallel -j2 "echo the number is {.}"

This would echo the numbers 1, 2, 3 to the stdout with a maximum of 2 parallel running echo’s.
Here’s the output:

the number is 1
the number is 3
the number is 2

As you can see printing a 3 outspeeds printing a 2

So here is my 1 liner to process all my files:

 $> mysql -uroot -p[secretPW] my_database < \ 
    <(echo "SELECT filename FROM files")\ 
    | grep -v 'filename' | parallel -j10 "./processFile.sh {.}"

After using this it took only 37min to process my 10000+ files

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http://deadlock.netbeans.org/hudson/job/nbms-and-javadoc/lastStableBuild/artifact/nbbuild/nbms/updates.xml.gz

to the Update Center.
After that I got a huge list of updates, and my missing JAX-RPC.
Now just: install, restart, update-again.
Et voila, there is the missing “JAXB Binding” menu point that was searching for.

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Tomcat java.net.BindException: Cannot assign requested address

I’m happy ‘Nir Levy‘ had nearly the same problem 4 years ago. Here he describes what went wrong with his /etc/hosts configuration.
My problem was that I did not update the host name in the configuration for my module
“/webapps/WEB-INF/classes/Configuration.properties”
After that everything was fine
I *heart* blogs !

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#!/bin/bash
mkdir src
cd src
wget http://museum.php.net/php5/php-5.3.2.tar.bz2
wget http://downloads.sourceforge.net/project/mcrypt/Libmcrypt/2.5.8/libmcrypt-2.5.8.tar.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fmcrypt%2Ffiles%2FLibmcrypt%2F2.5.8%2F&ts=1306411641&use_mirror=ignum
tar xzvf php-5.3.2.tar.bz2
tar xzvf libmcrypt-2.5.8.tar.gz
cd libmcrypt-2.5.8
MACOSX_DEPLOYMENT_TARGET=10.6 CFLAGS='-O3 -fno-common -arch i386 -arch x86_64' LDFLAGS='-O3 -arch i386 -arch x86_64' CXXFLAGS='-O3 -fno-common -arch i386 -arch x86_64' ./configure --disable-dependency-tracking && make -j6 && sudo make install
cd ../php-5.3.2/ext/mcrypt
/usr/bin/phpize
MACOSX_DEPLOYMENT_TARGET=10.6 CFLAGS='-O3 -fno-common -arch i386 -arch x86_64' LDFLAGS='-O3 -arch i386 -arch x86_64' CXXFLAGS='-O3 -fno-common -arch i386 -arch x86_64' ./configure --with-php-config=/Developer/SDKs/MacOSX10.6.sdk/usr/bin/php-config && make -j6 && sudo make install
echo "Completed install, now make sure to edit your php.ini"
echo "and check for \"enable_dl = On\" and add \"extension=mcrypt.so\"" to the dynamic extentions"

This is the little bash script I wrote according to his tutorial. This comes without any warranty!!!
Be aware that you have to enter your root password twice while installing this script.

Big Thanks to Michael Gracie

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#!/bin/sh
dns-sd -P "Home iTunes" _daap._tcp local 3689 localhost.local. \ 
127.0.0.1 "Arbitrary text record" &
PID=$!
ssh -C -N -L 3689:localhost:3689 username@dyndns_name.dyndns.org
kill $PID

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It works this way:
1. I wrote a python script which extracts information from the student union homepage and transform it into xml.
2. A .php script can call this .py script and give back those infos.
3. The widget was written in Dashcode with jQuery as an additional package. So it’s mainly javascript, some html and css. The widget now calls this php script, retrieves the xml and displays it in a (hopefully) pretty way.

This is how it looks:

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