Lulzbot Taz 5
Setup and calibration
An early print... ok... but still needs some tweaking
Jacob and Ben watching
Another test print
I finally discovered that micro cooling fan for the extruder was dead. It was a frustrating weekend of tweaking, failing, tweaking... getting OK.. so-so prints. I ordered a replacement part which solved the problem.
Sweet!
Hmmm... what could this be?
brrrr
Some iPhone pictures of a great sunset during a cold walk with Max the Wonder Dog
It feels like I never have the right vise on the mill....
I own four different vises for my mill, three of them are three (3) inch models and the fourth vise is a 5 inch model that is frankly too big for my mill. I can't tell you how many times I feel like I have the wrong vise mounted for the job that I am working. At some point I need to order a four inch vise.
The three model covers about 70% of my projects. A four model would cover 95% of my projects. The rest of the stuff is so one-off that it is just odd and you need options.
If (when) I have a full sized mill the a four inch vise will probably the stand vise with a 5 inch unit for the odd jobs. --Dreaming of perfect machine shop future.
I am little behind on some blog posts... like 5 months behind. It has been really easy to postpone posting pictures & comments with the excuse that I need to edit some pictures, etc... a couple more days.
I am getting to go through my photos in Lightroom and export a bunch of stuff.
For the last couple of days I have been using my RPi + KX3 to listen to WSPR and post spots up to the internet. This works well when I am working or away running errands and would not be using my station either way.
WSPR is a great application for the Raspberry Pi. It is a good low power approach to this compared to using a full sized PC and QRO (100w) radio. Right now for the receive function I am primarily using a shunt loaded tower that is tuned for 160m. While it is not a properly tuned/loaded circuit it is a big antenna and makes a great general purpose receive antenna.
Yea, I know... I need to setup the cat/ptt controls between the RPi and KX3 so that it can transmit too. --It is on my list of things to-do when time permits.
Ok.. it is time to focus on my evening activities... I have a week worth of MooC lectures to watch for two different classes. I will leave the RPi and KX3 listening to the ether while I study.
73 de NG0R
I have been continuing to tweak the steps for installing WSPR on an RPi (ARM6) based upon feedback from folks on the internet.
My testing uses versions:
Image: 2014-12-24-wheezy-raspbian.zip
WSPR build: 4979
// WSPR installation procedure update on Raspberry Pi B by NG0R, John Hoaglun Feb 19th 2015 based upon some notes from Greg KI7MT
// WSPR installation procedure update on Raspberry Pi B by NG0R, John Hoaglun Feb 18th 2015
// WSPR installation procedure on Raspberry Pi 2 by OZ9U, Soeren Schmidt, Feb 16th 2015.
// Note: installation at your own risk.
sudo apt-get update
sudo apt-get install subversion python3-dev python3-numpy autoconf -y
sudo nano /etc/apt/sources.list
add deb http://mirrordirector.raspbian.org/raspbian/ jessie main contrib non-free rp
comment out wheezy
sudo apt-get update
sudo apt-get install python3-pil.imagetk -y
sudo nano /etc/apt/sources.list
comment out jessie
uncomment wheezy
sudo apt-get update
sudo apt-get install libportaudio2 portaudio19-dev libsamplerate0-dev libfftw3-dev -y
sudo nano /etc/apt/sources.list
uncomment jessie
comment out wheezy
sudo apt-get update
sudo apt-get install gcc-4.9 g++-4.9 gfortran-4.9 tk8.6-dev tcl8.6-dev python3-pip -y
//Note to self… manually removing and linking the compilers is less than desirable but pillow seems to break otherwise right now
cd /usr/bin
sudo rm gcc
sudo rm arm-linux-gnueabihf-gcc
sudo ln -s gcc-4.9 gcc
sudo ln -s gcc-4.9 arm-linux-gnueabihf-gcc
sudo rm g++
sudo ln -s g++-4.9 g++
sudo rm gfortran
sudo ln -s gfortran-4.9 gfortran
//Note to self… one of those pillow installs is not needed but I need to test it to figure out which one
sudo apt-get install --reinstall python3-pillow -y
sudo pip3 install -I pillow==2.5.3
sudo apt-get install libjack-jackd2-0 portaudio19-dev -y
cd /home/pi
svn co svn://svn.code.sf.net/p/wsjt/wsjt/branches/wspr
cd wspr
./autogen.sh CC=gcc-4.9 FC=gfortran-4.9 CXX=g++-4.9 --with-f2py='/usr/bin/f2py3.4’
make && sudo make install
--------------------
References:
http://www.hoaglun.com/blog/2015/wspr-on-a-raspberry-pi
http://www.george-smart.co.uk/wiki/Compiling_WSPR
http://Naomi.mountains.net.au/hamradio/digital/wsjt-wsjtx.html
Making progress!
WSPR running on a Raspberry Pi
A few minutes of listening to WSPR on 40m
I have a KX3 (using I+Q) connected to my RPi listening to WSPR on 40m tonight. I don't have the cat controls working yet but I will probably tackle that after I install FLDigi. The RPi has no performance issues receiving and decoding WSPR. The CPU jumps up to 70% for a couple of seconds for the decode then goes back to under 20% during receive.
Pretty cool (and geeky) stuff.
73 de NG0R
Wooo hoo..... Thanks Soren!
Soren OZ9U found my earlier blog posting from 1/25/2015 that had a partial recipe. He looked at the error and figured out that the gcc parameters that were being specified needed GCC v4.9. He sent me an updated install recipe that worked for him but only got me about 98% there. I then pulled out my previous notes and was able to bridge the last couple of errors.
My testing uses versions:
Image: 2014-12-24-wheezy-raspbian.zip
WSPR build: 4912
// WSPR installation procedure update on Raspberry Pi B by NG0R, John Hoaglun Feb 18th 2015
// WSPR installation procedure on Raspberry Pi 2 by OZ9U, Soeren Schmidt, Feb 16th 2015.
// Note: installation at your own risk.
sudo apt-get install subversion python3-dev python3-numpy autoconf
sudo nano /etc/apt/sources.list
<use jessie in /etc/apt/sources.list>
sudo apt-get update
sudo apt-get install python3-pil.imagetk
sudo nano /etc/apt/sources.list
<use wheezy in /etc/apt/sources.list>
sudo apt-get update
sudo apt-get install libportaudio2 portaudio19-dev libsamplerate0-dev cl-fftw3
sudo nano /etc/apt/sources.list
<use jessie in /etc/apt/sources.list>
sudo apt-get update
sudo apt-get install gcc-4.9 g++-4.9 gfortran-4.9
cd /usr/bin
sudo rm gcc
sudo rm arm-linux-gnueabihf-gcc
sudo ln -s gcc-4.9 gcc
sudo ln -s gcc-4.9 arm-linux-gnueabihf-gcc
sudo rm g++
sudo ln -s g++-4.9 g++
sudo rm gfortran
sudo ln -s gfortran-4.9 gfortran
sudo apt-get install tk8.6-dev tcl8.6-dev
sudo apt-get install python3-pip
sudo apt-get install --reinstall python3-pillow
sudo pip3 install -I pillow==2.5.3
sudo apt-get install libjack-jackd2-0
sudo apt-get install portaudio19-dev
cd /home/pi
svn co svn://svn.code.sf.net/p/wsjt/wsjt/branches/wspr
cd wspr
./autogen.sh
nano Makefile
< edit Makefile: change f2py to f2py3.4 and -DF2PY=\"/usr/bin/f2py\" to -DF2PY=\"/usr/bin/f2py3.4\" >
make
sudo make install
--------------------
References:
http://www.hoaglun.com/blog/2015/wspr-on-a-raspberry-pi
http://www.george-smart.co.uk/wiki/Compiling_WSPR
http://Naomi.mountains.net.au/hamradio/digital/wsjt-wsjtx.html
I was able to bring up the WSPR gui after those steps were completed. It has been sitting there idle for an hour without any issues. I don't currently have a radio hooked up to the RPi so that will limit my testing short term.
I am going to run a couple more installs with fresh images to make sure that my notes are good and then I will try to hook up a radio and to a little testing of transmit and receive operations. I will also try to install a few other ham radio related packages to make sure that they don't break this install.
Thanks to Soren and the folks before us that have contributed to get us to this point.
73 de NG0R
Ben (N2BEN) and I (NG0R) went to the Cabin Fever Reliever on Saturday
We did not spend any money which kind of implies that there was nothing that we could not go home without. There were some nice rigs and a limited amount of parts for builders. Ultimately I think that we have a well equipped station so we have not been hauling home too much stuff from the hamfests for many years.
We had a good time talking with friends that we do not get too see very often and this is a sign that spring is coming... it is be beginning of the hamfest session. :-)
73 de NG0R